We absolutely enjoyed our 1993 Typhoon 4.3 turbo build! But investing so much $$$ to be limited by the “Split-journal” crankshaft was defeating. The NASCAR crankshaft castings were the cure, but nobody supported the platform. So, after bending the 4.3 crankshaft around 650hp, Richard decided it was time to LS swap the Typhoon. 👍
It is ashame that the Syclone and Typhoon doesn't have the aftermarket support of the GN. It would be great if the LV3 4.3L could be swapped into a Syclone or Typhoon that needs an engine transplant. I have seen several Turbo Buicks swap in the 3800 series II and III, the modern 4.3L v6 in the Syclone or Typhoon would be so awesome. 7 or 8 PSI with the LV3 and you've got more output than the 4.3L from 91.
I've had about 6 s10 pickups with 4 having the 4.3. It's definitely the best engine the s10s came with. I liked the original style TBI engines the best. My 92 4.3 s10 ran way stronger than my 02 4.3 did. They both were standard cab short beds with 3.42 limited slip rear. The 92 ran 4 tenths better then the 02
Don't forget the s-15 also came with the 4.3l. Their literally a 350 with the #3 an #8 cut off. Just picked up a 1990 2dr with one an restoring her for shows with original bill of sale. Sadly it's the automatic but plenty of options an a classic 6inch lift to boot.
@i3loodymoon647 Yeah the S15 is basically the same truck as the s10. The s15's usually have a better looking grill. The 90-93 s15 grill is the best looking one for that body style. One Nice thing about a 4.3 coming in those trucks is that it makes them really easy to swap a small block into them. Back in the day I put a 327 into a 92 s10 and it was little ripper.
I have the 4.2L Vortec in my 09 Trailblazer LT. The engine is great. I have almost zero complaints about the engine. The transmission, however, blows. My vehicle has never towed anything but very occasionally a fiberglass 10 ft Livingston boat. Its fluids have always been changed regularly. It's always been adult owned and driven, never beat on. And the transmission still only lasted to a little over 130k miles. I elected to have it rebuilt with some upgrades,so it's hopefully a little more durable now. The technician said it was pretty much shredded inside and some stripped splines,badly worn bands and clutches. It was an expensive fix,but it was still much cheaper than buying another vehicle. I can't really even make a complaint about the engine. The only thing that ever went wrong was the exhaust manifold cracked. That's not really anything having to do with engine reliability. It runs so smooth it's hard to tell it's even running.
Enjoyed the info on GM V6. I used to have a 1975 Nova LN with a 4.3L V8. Carburetor, not EFI. Got into a lot of arguments on this! Keep the the good videos coming.
There was also a mid 70s 4.3 litre V8, the 262 cu in used in the Monza & Nova, only for 75 & 76 as far as I know. 3.67 bore X 3.10 stroke. Had one in a Monza, originally rated 110 hp, 205 ft-lb I think. I put a Street Dominator and a 500 cfm AFB on mine.
Where can I find a deep oil pan for a 85 model 4.3 I am trying to put a 1985 engine in my 1991 S10 4x4 and my oil pan will not work to different 4.3 engine
Interesting comparison between the 4200 four valve and the LT type 4.3 with two valves per cylinder. The newesr V6 is no joke and the BTR cam makes it even mo' betterer.
i remember the l99. came in the early 90s caprice. we worked on one in auto class. remember a guy has one swapped into a single cab, long bed s10 with a turbo on it in the late 90s. kind of an oddball engine but can be found if looking hard enough. atlas was a good engine but gm messed up when they designed the colorado too small and couldn't fit that engine in. there is a reason there are 2 versions of the 4/5 cylinder engines and why they dropped a 5.3 in later on. another great video.
Some people getting big power out of the atlas it’s gm’a version of the 2JZ great motor. Love to see some GM 3.6 LFX Better yet 3.6 LGX. Great stuff as always Thanks Richard
The Vortech 4.3 heads came from the original 4.3 turbo motors that were in the cyclones and typhoons that’s where the design came from the TBI VERSION started in 1987 or 88 and went thru mid 1995
Richard, don't forget GM made the 262 V8 back in the 50's (first iteration of the gen 1) and they also had the lamest 267 V8 gen 1 in the early 80's.. these plus that L99 makes 3 GM V8's that were 4.3l displacements.
I'm thinking the new V6 with ring gap, premium head gaskets, head studs, supplemental port injectors, BTR cam/springs and a turbo will make a reliable 1,000 flywheel hp. That would be a super cool engine in a small package. Who will be the first to do it???
There's a guy on yt who swapped a turbo lv3 into his grand national, and that dusted a cammed and supercharged C6 that was making over 630 whp. These things make good ass power with boost
The 258cid Jeep 6cyl just called (4.2L) ... Judging from the way my 81 CJ7 fell on it's face and wouldn't hold highway speeds on mild hills after I installed what I thought was a conservative 32 inch tire upgrade.. perhaps better that it didn't attend the party.
I drive a 95 impala. So I actually know about the v-8 version. I have the 350. But I still run the optispark and tune the stock software. They only wrote the tune for those vehicles for around five years and then obdii became mandatory in 96 and changed everything again. So there’s not a lot of tuning support with the v8 version Pryor to 96.
Seeing the way how the newer V6 performs It makes me scratch my head as to why the folks at Mopar never produced a V6 version of the 5.7 Hemi. It would sit right around that 4.3-ish displacement and be a better option for use in the Ram 1500 or the other vehicles where low end torque is ideal. It fits that area better than the 3.6L IMO. A 4.3L V6 and a 4.8L I6 based on the 6.4 Hemi that could handle more abuse would probably be a good solution to keep that architecture alive.
Can you add a GM LFX (or equivalent High Feature GM v6) into your v6 testing mix? It's become a very popular swap engine for miata/RX8/etc. and there is not that much scientific info out there about them. Thanks!
And the monza,Malibu 262 in 75 and 76 that was soooo anemic that chevy killed it after 2 years. But it is a good source for a large jounal 3 inch stroke crank..
THat new L v6 will set you back a pretty penny. You can do some mods to the Vortec to get those HP ratings easily. Cam, exhaust and even some head work. By the way, the Vortec went past the year you said they were produced. I have a 2K' S10 that came with it. I'm pretty sure they were in production until 02'- 03'ish in the S10. Not sure on the Astro Van.
Are there any new camshaft options for the LV3 4.3? I am looking for swap options for my Miata and the V8 makes the car too nose heavy. I want to keep the high revving character of the car but with more N/A power. Turbo is great but not for this application. It would be great to see something that would let it rev to 7000 rpm.
I really like the smooth Alas I-6. Actually a real reason for a tachometer and automatic transmission. Yes before you hit start button again. Check the RPMs it may still be running. Quite and no vibration. Imagine such a thing. HP is nice. But if you decide to drive 600 miles in one day. You really get tired of high HP noise. It would have been nice to see what a 3rd gen head would have been like. BUT it was 2 cylinders to long for anything GM had in mind for 2010. But Stellantis is bringing back a I-6 for the Jeep
First off I must say I love all the content, personally I learned a lot when it came to my 5.9 360 from your videos some upgrades that I have planned for that build. My question is, I just bought 2003 Chevy S10 Blazer extreme with the 4.3, I'm not sure of the horsepower rating on it I believe it is the 190. what are some upgrades that I can do? I know compcams has something available up to a 2002 4.3's advertised,but from what I see it should still work in my 2003(part # 56-440-8). What type of upgrades would you suggest for performance as this is my daily driver,but I would like to get it to run a little bit more stout if able?
@@andrewmiddleton7544 either way is fine. You'll get more power with every upgrade. I'd go exhaust, Cold Air, Cam, tune. Otherwise on a budget skip the cam but then if you add one later you'll have to retune for the cam. But the tune is paramount. Good luck with it
These engines have huge power differences. But I'm still curious about how much they all weigh. On another test where the engines are pretty close, weigh could be a much bigger factor if there is a big enough difference.
I think that with the 4200 they purposefully didn’t increase the bore size like they did on the 4 and 5 cylinders, left out the VVT on the intake side, and under-tuned it because it would’ve made power numbers too close to the V8’s that they were putting out at the time and would’ve done it with better fuel efficiency. Hugely missed opportunity in my opinion. I think it could’ve easily made 325hp and over 300tq with those changes. And if they would’ve continued developing it and added direct injection like the LV3 has it probably would make similar numbers to it or even better. It’s a very strong motor. As I’m sure you’re aware by now Richard, it’s been pushed to 1000hp revving to 8000rpm by Calvin Nelson. 800hp on a stock bottom end before all the rods simultaneously bent. It’s sad it never got the attention from GM that it deserved.
I had a 1994 GMC pickup truck 8-ft long bed with a 4.3 V6. That thing was horrible anytime you put any weight and behind it the gas mileage went way way down to almost a single digits. I'm going up any and every Hill you lost 10 to 15 mi an hour at least if not more. It was so bad I eventually went out and bought a brand new cargo van with a 350 cutaway with a service bed in it and just used the pickup truck to do dump runs. That was the only thing that was really good.
VVT is nice until it's not when it breaks. Too much such crap in/on the engines now. They claim it's to improve performance but it's really to pad their pockets. Look at the problem direct injection engines have. I had a 1977 351W , stock compression, cam, heads and all I added was a Holley 600cfm, Torker II and duals. 20mpg at 80mph and would spin the tires on a 30mph tromp, stock rear gears from the factory. Then I was transferred and couldn't finish my plans. But we definitely don't need the government telling us what we can and can't drive. Definitely don't need computers and other stuff in our cars with the only purpose is to drive up the cost of operations and to break at an engineered time.
thats really cool to see how displacement, design and tech can all impact these numbers. odd side question: do you ever plan to switch to rumble? i could then listen while i drive or do other stuff in case im not able to watch
Yeah the 4.3 remained relatively unchanged right through the GMT900 trucks so right through 2013 lol. The one he tested had Vortec heads on it.. so beyond the balance shaft it was the same engine with the same rated output right to the end. I mean hell, it outlived the Atlas lol
@@LSswapGarage1 It outlived the the Atlas but that was mostly due to the Atlas 5 Cylinder engines moving to the Colorados and Canyons and then were phased out by the 3.6L V6. The Atlas is a very reliable engine but as we all know if it's too reliable there is no money to be made in repairs or new vehicles. 😉
Rich you made the comment that the 4.3 v6 was based off the 350ci v8. What I thought was interesting was that in your configuration, the 4.3 made better numbers than the L48 350ci and close to the L82 350ci found in C3 Corvettes of the '70s and early '80s.
I think they made the L99 because they were making all the Blazer V6's they could for their hot selling SUV's. I also wonder if they originally wanted to run a 305 in the Caprice but found an LT1 style 305 too close for comfort to the LT1.
The two variations of the 4.3 the OBD1 era cpi injected was beyond the obd2 mpfi version. Cpi was exclusively for the 4.3 and shared nothing with the V8 but bore and stroke and created more power than the V8 and all 4.3's created after OBD1. GMC took it up one more notch and held a 26 year record with it shaving Corvette parts and adding turbo. Obd2 killed it when it was agreed upon to incorporate a single style fuel injection to aid in universal coding from the top manufacturers the obd2 version became a mini me of the 5.7. pre 96 and post 96 both vortec but completely different animals. 5.7 became a vortec because of the pre 96 4.3 and every vortec after and still til this day.
How about the old 262 Chevy, 265 Chevy, and the 260 Olds? It would be a painful, but interesting comparison (if you could find one of each to test). I know the Olds was only rated at 110HP and was made from 1975 until 1981. Stay away from the diesel... lol.
Hi Richard, love your content! Quick question, I have a 3.7 (NA) in my f-150 that I raced ( ruclips.net/video/H41QlL1losE/видео.html )and it shifts at 6750rpm!! I tried two other 3.7's and they shift at 6750rpm too (tach bouncing off 7000) With aluminum block and heads, 4 valve per cyl and DOHC its no wonder it puts out 305hp. Could you dyno one and even add boost to see what this will do please? Considering putting one in my 83 mustang gt. Thank you!
We have one and it is stout in our 2011. Mustang. Very good balance of torque and hp. I’d love to boost it, I am surprised that the aftermarket hasn’t picked it up.
@@Bbbbad724 My buddy has a 2011 3.7 that went from 2.73 gears to 4.10s. It was a hell of a blast to drive even stock. With the gearing, it was a whole different car. The 3.7 makes horsepower the old v8s couldn't.
@@madmod It is really surprising how much it reminds of my 67 Mustang Coupe with a good 289 and 4 speed. The car is way better, but the got the vibe! Ours has 3.27s and SHP-Fords best tune. It is supposed to be 325 hp and 310 ft lbs. it runs nice, I bet a 4-6 lb Whipple would perfect it.
The atlas motor sucks I like the old 4.3 v6 that was in the Chevy ASTRO bad ass engine all I know is when it was in a gmc cyclone it was faster then a Ferrari back in that time so I don't care bout this new lve lv1 or gay ass atlas the original 4.3 was a beast and still is a beast to this day.
I'm looking at a brand new Chevy Express Cargo Van but not No BS 4.3 L V6 junk. No not at all. I want the 400 small-block 6.6 with 401 horsepower and a locking rear end and their bulletproof 6-speed transmission.
ATLAS Best Girl followed by side girl L99. Eh, who a my kidding, scrap the Baby LT1. ATLAS it's the only way to go. P.S: I want to see that Fancy V6 SCREAM MURDER in the Dyno on a Big Bang configuration and learn where is it's weak spot(s).
3D printing an intake manifold...I can't wait until that's a thing. My Astro has the Vortec 4300 but there's no cheap EFI manifolds. I'd love to turbo it but the expenses of a carb intake and an EFI based carb just don't make sense financially. I'm just going to LS swap it instead.
Take a stock 350/5.7 Vortec block and heads and stuff it with the 4.3 V8 crank and rods, using the stock 350 pistons. This would make a 302/5.0 Chevy. Then compare it with a stock 302/5.0 Ford engine. Use both engines as a base starting point then build them both up using comparable cams and intakes etc. Would make for an interesting comparison.
@@SoI_Badguy When was the last time you tried buying an original DZ302? The vortec headed engine should make more power than the original DZ if the cam and intake are the same.
@@bobstitzenberger1834 Why dyno test a 4.3L V6 or 4.3L V8? He could just test the biggest engines available. Big block Chevy or Ford engines make awesome hp and torque. 454 Chevy small blocks or 427 small blocks strokers make great power too. It would have been nice to see what Chevy could have done if they had had the desire to do so. The 302 would have been so much better than the 305 they made instead using all the leftover parts from the different V8 engines of the early 70's.
Very interesting to see this stuff. Smaller packaged engines have my attention with my Jeep build. I still have the 4.0 but I'm always looking for a cheap alternative that produces more torque per liter while still being not super expensive. All builds are budget builds. Although I'm sparing no expense for the frame and body (TDK frame with an all aluminum body). Damn is it expensive so far. But still cheaper than a new Jeep.
I'd take the older gm 4.3 all day the new stuff is shit!!! I work on them all day don't get started on the the ford 3.6 or transmissions... 70k miles and smoked meh
![Seungmin "그렇게, 천천히, 우리(As we are)" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/kAzmhLHePqU/mqdefault.jpg)
We absolutely enjoyed our 1993 Typhoon 4.3 turbo build! But investing so much $$$ to be limited by the “Split-journal” crankshaft was defeating. The NASCAR crankshaft castings were the cure, but nobody supported the platform.
So, after bending the 4.3 crankshaft around 650hp, Richard decided it was time to LS swap the Typhoon. 👍
I bet that Typhoon boogies with 650hp. I've ridden in my buddies bolt on Typhoon and it scoots pretty good.
It is ashame that the Syclone and Typhoon doesn't have the aftermarket support of the GN. It would be great if the LV3 4.3L could be swapped into a Syclone or Typhoon that needs an engine transplant. I have seen several Turbo Buicks swap in the 3800 series II and III, the modern 4.3L v6 in the Syclone or Typhoon would be so awesome. 7 or 8 PSI with the LV3 and you've got more output than the 4.3L from 91.
@@charleslowe522the 4.3l has more power normally aspirated than the 4.3l did in '91 with boost
1:26 200hp from the old push rod V6 was impressive in 1996, back then the Ford Mustang GT was making 215hp with its new OHC V8.
I've had about 6 s10 pickups with 4 having the 4.3. It's definitely the best engine the s10s came with. I liked the original style TBI engines the best. My 92 4.3 s10 ran way stronger than my 02 4.3 did. They both were standard cab short beds with 3.42 limited slip rear. The 92 ran 4 tenths better then the 02
Don't forget the s-15 also came with the 4.3l. Their literally a 350 with the #3 an #8 cut off. Just picked up a 1990 2dr with one an restoring her for shows with original bill of sale. Sadly it's the automatic but plenty of options an a classic 6inch lift to boot.
@i3loodymoon647 Yeah the S15 is basically the same truck as the s10. The s15's usually have a better looking grill. The 90-93 s15 grill is the best looking one for that body style. One Nice thing about a 4.3 coming in those trucks is that it makes them really easy to swap a small block into them. Back in the day I put a 327 into a 92 s10 and it was little ripper.
That LV1 / LV3 V6 with a cam and boost should be an absolute rock star!
GM had a 4.1L VVT pushrod 60 degree V6 ready for trucks, but it was canceled in the 2009 bankruptcy. It made 250-260hp and close to 300tq.
the lv3 was cheaper, and the 60* pushrod motor didn't have any other home
It would've been better then the 4.2
@@jackdaniels2657 nah. If anything, they should have put the 4200 in as the base truck engine and continued to develop it to date
@@johnnyk5 those engines suck I had the 2.8 3 cylinder atlas motor timing chain is a pain in the ass
@@jackdaniels2657huh 3 cylinder 2.8
I have the 4.2L Vortec in my 09 Trailblazer LT. The engine is great. I have almost zero complaints about the engine. The transmission, however, blows. My vehicle has never towed anything but very occasionally a fiberglass 10 ft Livingston boat. Its fluids have always been changed regularly. It's always been adult owned and driven, never beat on. And the transmission still only lasted to a little over 130k miles. I elected to have it rebuilt with some upgrades,so it's hopefully a little more durable now. The technician said it was pretty much shredded inside and some stripped splines,badly worn bands and clutches. It was an expensive fix,but it was still much cheaper than buying another vehicle. I can't really even make a complaint about the engine. The only thing that ever went wrong was the exhaust manifold cracked. That's not really anything having to do with engine reliability. It runs so smooth it's hard to tell it's even running.
Port flow is everything. The LS/LT V6 has the same large improvement as the LS was over the Gen 1 Small Block.
Too cool, I was just reading about the new 4.3. Shorter than a V8 means more room for intercooler!
Enjoyed the info on GM V6. I used to have a 1975 Nova LN with a 4.3L V8. Carburetor, not EFI. Got into a lot of arguments on this! Keep the the good videos coming.
Luving your channel! I have a 2003 LU3 with close to 200K and it still runs great!
Love the 4.3 Vortecs
Hey Richard when are you going to test a 3.0 or 3.2 Taurus SHO V6 from 89-95? The 3.4 SHO V8 would be interesting as well.
Hey how much would you charge to rebuild a 3.8l v6 supercharger out of 2002 gtp 40 anniversary limited edition
I don't rebuild blowers
Very glad that you are doing this video finally doing the 4200 Atlas Inline 6 very good motor to build power and plentiful to buy.
There was also a mid 70s 4.3 litre V8, the 262 cu in used in the Monza & Nova, only for 75 & 76 as far as I know. 3.67 bore X 3.10 stroke. Had one in a Monza, originally rated 110 hp, 205 ft-lb I think. I put a Street Dominator and a 500 cfm AFB on mine.
there was also a 1965 265 and a 267
Where can I find a deep oil pan for a 85 model 4.3 I am trying to put a 1985 engine in my 1991 S10 4x4 and my oil pan will not work to different 4.3 engine
Interesting comparison between the 4200 four valve and the LT type 4.3 with two valves per cylinder. The newesr V6 is no joke and the BTR cam makes it even mo' betterer.
i remember the l99. came in the early 90s caprice. we worked on one in auto class. remember a guy has one swapped into a single cab, long bed s10 with a turbo on it in the late 90s. kind of an oddball engine but can be found if looking hard enough.
atlas was a good engine but gm messed up when they designed the colorado too small and couldn't fit that engine in. there is a reason there are 2 versions of the 4/5 cylinder engines and why they dropped a 5.3 in later on.
another great video.
Im here trying to find on how to make a 4.3 NA 1999 s10 but i got no info on my engine, Only the 1997 and down i heard their not the same motor
Some people getting big power out of the atlas it’s gm’a version of the 2JZ great motor.
Love to see some GM 3.6 LFX Better yet 3.6 LGX.
Great stuff as always
Thanks Richard
The Vortech 4.3 heads came from the original 4.3 turbo motors that were in the cyclones and typhoons that’s where the design came from the TBI VERSION started in 1987 or 88 and went thru mid 1995
Richard, don't forget GM made the 262 V8 back in the 50's (first iteration of the gen 1) and they also had the lamest 267 V8 gen 1 in the early 80's.. these plus that L99 makes 3 GM V8's that were 4.3l displacements.
YES
There's a 4.3 conventional small block from 1975-76 also. Had one in a Monza. I think it was rated at 110hp.
Me too , 262 2 bbl 4 speed, California got the 305 because that had Ca emission's cert !
@@eflanagan1921 for one yr CA got the 350! I saw one up here in Canada, freaked out when I saw the emblems on the fenders.
I'm thinking the new V6 with ring gap, premium head gaskets, head studs, supplemental port injectors, BTR cam/springs and a turbo will make a reliable 1,000 flywheel hp. That would be a super cool engine in a small package. Who will be the first to do it???
There's a guy on yt who swapped a turbo lv3 into his grand national, and that dusted a cammed and supercharged C6 that was making over 630 whp. These things make good ass power with boost
@@boostedbird4799 NEED MORE POWER!!!!
I need help 98 4.3 4x4 vortec ti.img TDC #1 no marks on balancer near the pointer????
I think buddy had his production years wrong with the 4.3 vortec how was 95 the last year when the last year s10 was 2003-2004 ?
The 258cid Jeep 6cyl just called (4.2L) ... Judging from the way my 81 CJ7 fell on it's face and wouldn't hold highway speeds on mild hills after I installed what I thought was a conservative 32 inch tire upgrade.. perhaps better that it didn't attend the party.
I'd love to throw that LV3 in my '91 S10 Blazer. I think it'd be a great combo along with a 6 speed
Would you be willing to run pentastar 3.6l from the charger/challenger/300? I'd love to learn more about it
Why didn’t you test a newer 4.3 out of a say 01+ Chevy s10
is it possible for a lv3 intake to fit on a lu3 or should we just stick with the performer 2114
I wonder what the head flow data for each is especially between the 4v 4.2 and 2v LV3
Have you gotten a chance to work with GMs HD 6.6 gas engine L8T? Heard it has a lot of potential for power and it’s an iron block with no AFM or DOD
it is very stout
I wouldn’t mind a 4cyl atlas in an awd Colorado if I could side by side it with a ms or if the trans plays nice with control
I drive a 95 impala. So I actually know about the v-8 version. I have the 350. But I still run the optispark and tune the stock software. They only wrote the tune for those vehicles for around five years and then obdii became mandatory in 96 and changed everything again. So there’s not a lot of tuning support with the v8 version Pryor to 96.
I had a 96 S10 SS but modded it though. Was making somewhere near 265 Horswpower with the mods I did.
Seeing the way how the newer V6 performs It makes me scratch my head as to why the folks at Mopar never produced a V6 version of the 5.7 Hemi. It would sit right around that 4.3-ish displacement and be a better option for use in the Ram 1500 or the other vehicles where low end torque is ideal. It fits that area better than the 3.6L IMO. A 4.3L V6 and a 4.8L I6 based on the 6.4 Hemi that could handle more abuse would probably be a good solution to keep that architecture alive.
This video was dope! I been wondering how a v6 could beat a v8, maybe sharing displacement is a start🤔
The VORTEC 4.3 started in 1995 and was in trucks all the way up to 2005
Wrong. GMT900 were the last to have the 4.3l vortec and they were discontinued in 2014.
Before 95, my 92 has one
I have a 2003 chevy express 1500 with a 4.3, I'm very have with it ..
Can you add a GM LFX (or equivalent High Feature GM v6) into your v6 testing mix? It's become a very popular swap engine for miata/RX8/etc. and there is not that much scientific info out there about them. Thanks!
I'm interested in how much power gains a cam and bolt on parts would produce on the LS V6. How far can the injectors fuel it.
the LT V6?
And the monza,Malibu 262 in 75 and 76 that was soooo anemic that chevy killed it after 2 years. But it is a good source for a large jounal 3 inch stroke crank..
Only got the V8 after fuel crisis ended GM's wankle program why you had to pull pass side motor mount thru bolt for plug change !
What can i do to add power to my 1995 caprice? Its a 4.3 L v8 thats only got 38,000 miles
add 5.7L
@@richardholdener1727 so you mean like engine swap or injectors?
Does the older V6 4.3 share the bolt pattern architecture with the LV3? Original vortec
I don't think so but I have not measured them
THat new L v6 will set you back a pretty penny. You can do some mods to the Vortec to get those HP ratings easily. Cam, exhaust and even some head work. By the way, the Vortec went past the year you said they were produced. I have a 2K' S10 that came with it. I'm pretty sure they were in production until 02'- 03'ish in the S10. Not sure on the Astro Van.
the express van had the thru 2014
Are there any new camshaft options for the LV3 4.3? I am looking for swap options for my Miata and the V8 makes the car too nose heavy. I want to keep the high revving character of the car but with more N/A power. Turbo is great but not for this application. It would be great to see something that would let it rev to 7000 rpm.
ask btr
Pretty sure the LU3 is basically the same and went to 2012 or 2013, maybe even later in some vans.
i have the same setup as the first engine in my pinto ..i am about to try to make it a 5 speed .. it has a turbo 350 now ..
I really like the smooth Alas I-6. Actually a real reason for a tachometer and automatic transmission.
Yes before you hit start button again. Check the RPMs it may still be running. Quite and no vibration. Imagine such a thing.
HP is nice. But if you decide to drive 600 miles in one day. You really get tired of high HP noise. It would have been nice to see what a 3rd gen head would have been like.
BUT it was 2 cylinders to long for anything GM had in mind for 2010.
But Stellantis is bringing back a I-6 for the Jeep
First off I must say I love all the content, personally I learned a lot when it came to my 5.9 360 from your videos some upgrades that I have planned for that build. My question is, I just bought 2003 Chevy S10 Blazer extreme with the 4.3, I'm not sure of the horsepower rating on it I believe it is the 190. what are some upgrades that I can do? I know compcams has something available up to a 2002 4.3's advertised,but from what I see it should still work in my 2003(part # 56-440-8). What type of upgrades would you suggest for performance as this is my daily driver,but I would like to get it to run a little bit more stout if able?
exhaust, tune, cold air
@@richardholdener1727 thanks I value,and appreciate your feedback,now is that with or without a cam swap? I'm all in either way...
@@andrewmiddleton7544 either way is fine. You'll get more power with every upgrade. I'd go exhaust, Cold Air, Cam, tune. Otherwise on a budget skip the cam but then if you add one later you'll have to retune for the cam. But the tune is paramount. Good luck with it
@@taknmybeatings7036 thanks for your input as well appreciate the feedback and advice.
ITBs would be pretty interesting on the LV3.
These engines have huge power differences. But I'm still curious about how much they all weigh. On another test where the engines are pretty close, weigh could be a much bigger factor if there is a big enough difference.
Scoggin Dickey says the LV3 is super light at 350 pounds dressed.
whyy wont you slap individual throtle bodies like the bmw s54..that would open upp for better intake plenum or box and better air intake
I have IR induction test vids up
What happens next, electric version!!!?
Thank you this ultimate GM other guys comparison!
The Atlas engines are majorly slept on
Is the 2008 LU3 a good 4.3 engine?
yes
@@richardholdener1727 thank you
Can you take an LU3 and make it into an LV3?
different engine family
I wish i could cram a straight six in my s10 zr2
I think that with the 4200 they purposefully didn’t increase the bore size like they did on the 4 and 5 cylinders, left out the VVT on the intake side, and under-tuned it because it would’ve made power numbers too close to the V8’s that they were putting out at the time and would’ve done it with better fuel efficiency. Hugely missed opportunity in my opinion. I think it could’ve easily made 325hp and over 300tq with those changes. And if they would’ve continued developing it and added direct injection like the LV3 has it probably would make similar numbers to it or even better. It’s a very strong motor. As I’m sure you’re aware by now Richard, it’s been pushed to 1000hp revving to 8000rpm by Calvin Nelson. 800hp on a stock bottom end before all the rods simultaneously bent. It’s sad it never got the attention from GM that it deserved.
How about a boosted 4.3???
I should have bought a Syclone leftovers avail for thousands off !
I had a 1994 GMC pickup truck 8-ft long bed with a 4.3 V6. That thing was horrible anytime you put any weight and behind it the gas mileage went way way down to almost a single digits. I'm going up any and every Hill you lost 10 to 15 mi an hour at least if not more. It was so bad I eventually went out and bought a brand new cargo van with a 350 cutaway with a service bed in it and just used the pickup truck to do dump runs. That was the only thing that was really good.
Got used to being slow
Any videos on the LF6?
VVT is nice until it's not when it breaks. Too much such crap in/on the engines now. They claim it's to improve performance but it's really to pad their pockets. Look at the problem direct injection engines have.
I had a 1977 351W , stock compression, cam, heads and all I added was a Holley 600cfm, Torker II and duals. 20mpg at 80mph and would spin the tires on a 30mph tromp, stock rear gears from the factory. Then I was transferred and couldn't finish my plans. But we definitely don't need the government telling us what we can and can't drive. Definitely don't need computers and other stuff in our cars with the only purpose is to drive up the cost of operations and to break at an engineered time.
The L99 is true the police near me bought them and the Sheriffs Office and Troopers Ordered LT1. Big difference in power.
great video
thats really cool to see how displacement, design and tech can all impact these numbers.
odd side question: do you ever plan to switch to rumble? i could then listen while i drive or do other stuff in case im not able to watch
WHY WOULD I SWITCH?
Next do the Buick 3.8 V6 Vs Ford 3.8 V6 and if it's possible Dyno a 3.8 V8.
I had a 63 gmc with a 305 v6 in it
Richard have you ever run a Cadillac Northstar ?
NOT YET
The Vortec 4.3 lasted until 2013-14
No. There were many types and differences of 4300 Vortecs and 4.3Ls over the years. From 1985-2014.
@@tskraj3190 You both said the same thing, I’m not sure what you were trying to clarify.
@@tskraj3190 I’m only referring to the one based on the gen 2 version of the old Chevy small block.
Yeah the 4.3 remained relatively unchanged right through the GMT900 trucks so right through 2013 lol. The one he tested had Vortec heads on it.. so beyond the balance shaft it was the same engine with the same rated output right to the end. I mean hell, it outlived the Atlas lol
@@LSswapGarage1 It outlived the the Atlas but that was mostly due to the Atlas 5 Cylinder engines moving to the Colorados and Canyons and then were phased out by the 3.6L V6. The Atlas is a very reliable engine but as we all know if it's too reliable there is no money to be made in repairs or new vehicles. 😉
Rich you made the comment that the 4.3 v6 was based off the 350ci v8. What I thought was interesting was that in your configuration, the 4.3 made better numbers than the L48 350ci and close to the L82 350ci found in C3 Corvettes of the '70s and early '80s.
4.3 design goal as to replace 307 truck motor .
I think they made the L99 because they were making all the Blazer V6's they could for their hot selling SUV's. I also wonder if they originally wanted to run a 305 in the Caprice but found an LT1 style 305 too close for comfort to the LT1.
But, what about the 4.3L V6 Olds Diesel?! :P
The two variations of the 4.3 the OBD1 era cpi injected was beyond the obd2 mpfi version. Cpi was exclusively for the 4.3 and shared nothing with the V8 but bore and stroke and created more power than the V8 and all 4.3's created after OBD1. GMC took it up one more notch and held a 26 year record with it shaving Corvette parts and adding turbo. Obd2 killed it when it was agreed upon to incorporate a single style fuel injection to aid in universal coding from the top manufacturers the obd2 version became a mini me of the 5.7. pre 96 and post 96 both vortec but completely different animals. 5.7 became a vortec because of the pre 96 4.3 and every vortec after and still til this day.
How about the old 262 Chevy, 265 Chevy, and the 260 Olds?
It would be a painful, but interesting comparison (if you could find one of each to test).
I know the Olds was only rated at 110HP and was made from 1975 until 1981. Stay away from the diesel... lol.
Hi Richard, love your content! Quick question, I have a 3.7 (NA) in my f-150 that I raced ( ruclips.net/video/H41QlL1losE/видео.html )and it shifts at 6750rpm!! I tried two other 3.7's and they shift at 6750rpm too (tach bouncing off 7000) With aluminum block and heads, 4 valve per cyl and DOHC its no wonder it puts out 305hp. Could you dyno one and even add boost to see what this will do please? Considering putting one in my 83 mustang gt.
Thank you!
Like, share, subscribe, ring the bell. Do all that stuff. He'll keep testing
I’m just waiting for the Ameri Barra Big Bang
You gotta try and get ahold of a 3.7 Ford V6. They are pretty stout na. The only v6 that really continues to impress me after my 3800.
We have one and it is stout in our 2011. Mustang. Very good balance of torque and hp. I’d love to boost it, I am surprised that the aftermarket hasn’t picked it up.
@@Bbbbad724 My buddy has a 2011 3.7 that went from 2.73 gears to 4.10s. It was a hell of a blast to drive even stock. With the gearing, it was a whole different car. The 3.7 makes horsepower the old v8s couldn't.
@@madmod It is really surprising how much it reminds of my 67 Mustang Coupe with a good 289 and 4 speed. The car is way better, but the got the vibe! Ours has 3.27s and SHP-Fords best tune. It is supposed to be 325 hp and 310 ft lbs. it runs nice, I bet a 4-6 lb Whipple would perfect it.
@@Bbbbad724 They really stepped upthe game with the 3.7. 325hp is no slouch!
The atlas motor sucks I like the old 4.3 v6 that was in the Chevy ASTRO bad ass engine all I know is when it was in a gmc cyclone it was faster then a Ferrari back in that time so I don't care bout this new lve lv1 or gay ass atlas the original 4.3 was a beast and still is a beast to this day.
it's a good motor-especially with a turbo-it just makes much less power than the newer ones
I'm looking at a brand new Chevy Express Cargo Van but not No BS 4.3 L V6 junk. No not at all. I want the 400 small-block 6.6 with 401 horsepower and a locking rear end and their bulletproof 6-speed transmission.
4.3 v6 💨💨💨
ATLAS Best Girl followed by side girl L99.
Eh, who a my kidding, scrap the Baby LT1.
ATLAS it's the only way to go.
P.S: I want to see that Fancy V6 SCREAM MURDER in the Dyno on a Big Bang configuration and learn where is it's weak spot(s).
3D printing an intake manifold...I can't wait until that's a thing.
My Astro has the Vortec 4300 but there's no cheap EFI manifolds. I'd love to turbo it but the expenses of a carb intake and an EFI based carb just don't make sense financially. I'm just going to LS swap it instead.
A lot of people just add the bung for the injector in to the manifold and run a throttle body on top .
Could you modify a V8 manifold? Isn't the stock manifold an EFI manifold?
@@bobstitzenberger1834 as long as you have a place to put the injectors you can do it with any manifold.
Could you share any info on your engine ?
Take a stock 350/5.7 Vortec block and heads and stuff it with the 4.3 V8 crank and rods, using the stock 350 pistons. This would make a 302/5.0 Chevy. Then compare it with a stock 302/5.0 Ford engine. Use both engines as a base starting point then build them both up using comparable cams and intakes etc. Would make for an interesting comparison.
Now that I wouldn't mind trying out. Just picked up a vortec 5.7 and not sure what to do with it yet. Great idea
That already happened, it's called the DZ302
@@SoI_Badguy When was the last time you tried buying an original DZ302? The vortec headed engine should make more power than the original DZ if the cam and intake are the same.
I don't see a reason for fewer cubic inches. You are throwing away 50-75 ft/lbs of torque, right through the rpm range.
@@bobstitzenberger1834 Why dyno test a 4.3L V6 or 4.3L V8? He could just test the biggest engines available. Big block Chevy or Ford engines make awesome hp and torque. 454 Chevy small blocks or 427 small blocks strokers make great power too. It would have been nice to see what Chevy could have done if they had had the desire to do so. The 302 would have been so much better than the 305 they made instead using all the leftover parts from the different V8 engines of the early 70's.
Very interesting to see this stuff. Smaller packaged engines have my attention with my Jeep build. I still have the 4.0 but I'm always looking for a cheap alternative that produces more torque per liter while still being not super expensive. All builds are budget builds. Although I'm sparing no expense for the frame and body (TDK frame with an all aluminum body). Damn is it expensive so far. But still cheaper than a new Jeep.
Anyone ever put a 4.3 is a 85 c10
I drive a car with a 4.3 V8. I love that thing. Not a gm though
i've got an 01 GS430, pretty fun car. not the fastest thing out there these days but it can hold it's own pretty well for a stock 20 year old car.
@@DeathProof132 word!
I'd take the older gm 4.3 all day the new stuff is shit!!! I work on them all day don't get started on the the ford 3.6 or transmissions... 70k miles and smoked meh
💜💜💜💜💜💜
And just think the 4.34.3 l V6 is a 265 in³
What's going to happen next at GM? Bye ICE. 😢
Now do Ford v6's
Iment to say a 4.3 is a 265 ci
The V8 has 4 more ports and valves to breath through!!!!!!
Personally I blame squirrels
LU3 replaced L35, LV3 replaced LU3
Now 260 olds lol
Hey man i would love to ask you some questions i really need your expertise but i can't find your email on Google. How can I reach you?
I HAVE A LIVE FEED EVERY NITE AT 7 PST-ASK ALL THE QUESTIONS YOU LIKE
@@richardholdener1727 hell yeah I'll be there tonight!
@@richardholdener1727 hey so wasn't 7 pst half an hour ago? Or am I trippin