SPECS and MORE on the 3.6 LS 4 cylinder engine by Blueprint engines
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- Опубликовано: 29 дек 2022
- Blueprint engines has revealed their new 3.6 liter LS 4 cylinder engine capable of 340 horsepower and over 500lbft of torque. Many questions we asked in my last video concerning turbos, bore, stroke and even cam placement. Many of those questions will get answered in this video!
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Thanks for everyone's interest! We are excited to continue researching this concept engine and can't wait to provide updates on if and/or when it will be available!
It's definitely an interesting engine you are working on with many applications! Can't wait to see where this goes
You should name Honda Killer or Game Changer.
Hey Blueprint....TAKE MY MONEY ! 💰...I beg you to offer piston oil squirters as a option. I would pay an extra 500$ for this option.
Don't let me down blueprint!
When you have it in a platform to show off, please let us know!
Two most important things that will define success of this engine: 1) price, 2) ability dealing with vibrations.
This motor sounds perfect for smaller 4x4 off road vehicles; very interested to see a complete longblock with the turbo setup for sale at BP.
Just found your video. I was talking to a guy a couple of weeks ago about manufacturers should make aspirated engine that could go into different cars .. That would be dependable. I hope someone dose this for the people that don't have a lot of money..
Any news on the Blueprint LS 4cyl engine?!
3.6 liter NA, I would say around 250 lbft/360 Nm and 200/220 HP. Probably the turbocharged figures provided are for about 15 pounds of boost (1 bar). I think it is a very nice compact engine, if it does not vibrate too much. With a small turbo from G25 series pushing around 22 pounds, probably it will output around 500 HP/625 lbft (if internals can sustain it), nearly no turbo lag thanks to the large displacement.
No frickin way. Your not going from 220ft pounds to 750 by just adding 7 pounds of boost. Maybe 100 more horses and another 130 to 150 foot pounds.
I was thinking NA around 190HP and 250TQ and the boost number was really cold 12 psi on high octane with decent amount of timing. I bet with in car tempsi bet it would be 25 hp 45 tq less.
I think this engine gonna make way more than 200 hp. that engine might make less than 400 hp with that bore x stroke size i’m just saying. this is my first time ever watching and seeing a 3.6 L in line-4 cylinder engine and most in line-4 Engine displacements are around 1L to 2.6 L.
@Sherro Kinchen it's really just a scientific math game of how much fuel can physically be burned in that size chamber before it explodes or lifts the head. Adding boost does not add power there is a lot more too it.
@@mustangdemon87 oops you are damn right, I updated the figure for the torque: 625 lbft at 22 pounds of boost (not 7)
I am so happy that this engine didn't exist and/or was used as a stock 4cyl application in light vehicles 30 years ago, or I never would have had any reason to punt the Iron Duke and 4spd stick out of my 88 S10 in favor of a 350/TH350. My life would have been quite different.
Actually that 3 liter marine and industrial engine has has been around for way more than 30 years. I first became aware of them when I worked a couple of summers at a friend's marina way back in the mid '70's.!
I think a big attraction is simplicity.
Pushrod motors are fairly straight forward, and position well within most enthusiasts skillset. OHC engines , generally require a more refined skillset, especially high Rpm normally aspirated configurations. I love this engine setup, simple , stout appearing, and economical -ish.
I would need 4 bolt mains and a forged crank though to rate this at a ten . I have a feeling pushing a lot of low Rpm boost is going to walk those rod caps around. Otherwise I still love it. Nice job Blueprint, sweet combo you have cooked up .
As a technician I personally would rather work on overhead cam
The Atlas 4200 is a dime a dozen in northern junkyards these days and produces more HP per psi than any LS. Nivlac57 is showing the world what those are capable of and working out great parts combos for budget builds.
Most anyone who works with four cylinder engines is pretty comfortable with OHC, and probably even finds it easier to work with. Plus, OHC isn’t exactly rocket science.
Props for the update on those numbers being with Turbo!!!
You won't have to worry about the 2 bolt mains. You have 5 bearings supporting the crank, and it is only a 4 cylinder. Plus, there is no way this will be a high RPM screamer with a 4" stroke on a 4 cyinder. It would be neat to see that big 4.185" max bore with a 3" stroke, though. 😁.
I mentioned this engine to my dad, and he is pretty interested in more power for his boat. If this thing turns out to be a reality, we will consider it. It is the first real aftermarket for the Chevy II 4 cylinder. They should consider dual bellhousing bolt patterns for the GM Metric pattern as well as the standard V8 pattern. The engine mounts should also include provisions for Chevy style and Pontiac (Iron Duke) mounts. That way, this could easily replace the Iron Duke. Actually replacing a Duke may be easier since it used a cross flow head, and Chevy did not.
fieros would be insane .... demand would come back
@@xoriatmike6857 Excessive Low Rpm boost under 2500rpms will walk those caps, and flex that crank into pieces.
The key words are excessive and overly aggressive. This engine is desperate for 4 bolt mains, forged crank and rods, if its pushed at all! 500hp is effortless nowadays, If this bottom end cant handle 750hp stock its a NON starter for high performance. If that the case other options..Just buy a stock k27 and add cams, or a bone stock buick3.8 v6 with a Halteck ECU and, fuel pump, atomizer injectors and be done with it, unless you like breaking things...for less performance, repeatedly..
Good on ya for the correction 👌 still a real interesting engine
It also can take a Ford Windsor head so it could take a Cleveland/boss head 😁 pitty it's a short deck as a longer rod and a tad more stroke would make it quite a torque monster NA
The natural aspirated numbers will depend on the compression ratio, cam shafts, intake manifold throttle setup and what fuel its tuned for. Also eventually they might come out with a longer stroke version of the crank and rods changing the numbers so I mean it's not really a set power band till the buyer specs it out and the transmission and what drive line, tires and so on will have a bit of an effect. So really the potential is still kinda endless at this point
i really want one of these engines for my s10. originally bought it with the intent of towing my miata with it. this engine would be perfect imo
The block appears to be based on late production GM 3 litre marine and industrial block, which is a big bore and longer stroke (4 in. X3.68 in.) version of the old '62 to '70 153 Chevy 4-banger which in turn was based on the '63 to '70 230 cubic inch Chevrolet 6-banger.
Yes i think its based on the Chevy II 153 as well.
Did you listen to what he said in the video?
Love the idea of this engine. My first thought was a Willys Jeep or Willys Cabover pickup something of that style vehicle would be perfect.
Application, application, application... I for one am excited to hear more about smaller displacement engines that are suited for toughness. I'm sizing up a restoration of an '89 Toyota pickup and even if I spent $4-6K on getting the engine professionally rebuilt for numbers by Yota1 Performance or 22RE Performance it would still only squeeze out a maximum of 130-140hp and maybe 160-180tq. I can't stomach the idea of a V8 swap because that hardly makes any sense aside from a 4.0L 1UZ and that isn't even touching 200hp. Besides-- who can say no to a new crate engine that takes easy to find parts? With the simplicity of an engine like this, the combo would make for a classic Yota look with a grunty four banger inside. Slap the six lug dually under the rear and I have a small footprint workhorse. Booyah! I'm looking forward to more deets from BPE as well as a price point 😉
But what’s the thing going to cost?
Chevy small block has several flywheels, a small diameter with 153 teeth and a large diameter with 168 teeth. There are also a difference for older internal balance (larger 6 bolt pattern) and newer (86 and up i think) external balance (smaller diameter 6 bolt pattern). The spacing difference is quite significant.
To expand on that, when blueprint engines says it has a "one piece rms crank flange" it means one-piece rear main seal crank flange, so the smaller '86 (I think you're right) and up bolt pattern...
This would be a good swap into my jeep. Looking forward to updates.
It reminds me of the various midget sprint car engines, of similar design, that racers have been building for decades.
And something like that is the only practical application that I can see for a engine like this. There are just too many good, mass-produced engines, that produce similar power numbers in stock form, and potentially much more with their vast amounts of aftermarket support.... And you can get them from wrecking yards!
Yes , same thoughts. I really likeed it at first , was envisioning a decent inexpensive SMALL sized platform. But after a lot of thought, a stock tweaked N/A BuickV6, 3.8 puts out 255hp and 285ftlbs of torque...and costs $750 for low mile, complete engines...Again I love the blueprint concept. But upon further investigation, its a no winner for me, based on a dollar per HP basis alone...
I was lovin it for a day though!@!!! (still do, just not for me...)
Would love to see this engine in use!
Would love to get one of these for my yj. To get more power and leave it a 4 banger would be awesome.
This engine in any classic car with a 8 or 10 speed trans would be awesome.
After seeing the first video, I went on marketplace to look for a specific type of 3rd gen F-body, aka the one with the amazingly named Iron Duke 4 cylinder. An engine released into the most 80’s of 80’s sport cars outside of the Countach (spelling?) and in the late 20th century this engine made almost 90 hp😂. However putting this thing in place of the duke sounds like all the fun👍
I’ve had three IROCs but always loved the early base model cars. I would love to put one of these in place of an Iron Duke!
@@sc3ku imagine the “wtf is that” factor at a car show
It is a duke , same block as early S-10'S, an keeps , bell housing same as all block , mercury marine mercrusier boat motor , they make a ,three liter
The iron duke was rare in Camaros, but fairly common in stripped-down firebirds because the iron duke was a Pontiac engine design.
@@user-sk5ll9zw7c yup it sure was, and in fieros. But the best place I've ever seen one was in a boat. And no not as the anchor, but for moving around in fresh water it's a perfect low stress environment for that thing. I have no idea if it'd do quite as well in salt water with currents and such but out on a nice calm lake it's fine for moving around a little fishing runabout. And given the period it was built and the third gets were designed engines like the iron Duke had to happen. 1. It showed American manufacturers that complacency in the era of people seeing what the japanese car companies could do with a four pot was very ungood for them. And customers leaving them for brands like Honda and Toyota was an actual threat. My dad had just gotten his first union book as a welder and went to buy a brand new 79 Z28 but was unable to get financing with no credit, even though he was making more than enough money. The Toyota dealers (so the story goes) bent over backwards to put him into a Celica Supra with a straight 6 and a 5 speed. Now did he take some shit from his co-workers yup, but what can you do?
2. That competition led to all the goodies we've taken for granted for decades now. I mean shit my first car was a 2 door 88 Buick lesabre with the 3.8 that featured multiport sequential efi and I think one of the first distributorless ignition systems. It wasn't coil on or near plug but rather the big mono coil that I think was 3 coils in one with each coil lighting off 2 cylinders. But not bad for 1988, and it's always bugged me that they had that tech sitting there when the 92-97 5.7 Lt1's were being developed and someone in a meeting at GM said " yeah that distributorless system is nice and all but what if we used a needlessly complex set of wheels with holes in them hooked to a pancaked dist. and used a stupid expensive LED flasher /reader combo from Mitsubishi to use those holes to tell the ecu what cylinder was where)
"Oh so it'll just tell the computer what's what and not have any of the high voltage that causes wear in regular distributors?"
"Oh no no no we'll keep all that together what harm could it cause?"
"And with the fire wall being over 1/3 of the engine how will we mount this wonder of modern technology? Will we go to a Ford type setup with it in the front of the engine?"
"Oh yeah definitely the front but to clean up the look of the engine bay we'll mount it under the waterpump, right under the weep hole, and I'm reliably informed these both the pump and this new not distributor will last 100k miles so no need to worry about coolant leaking onto the high voltage bespoke ignition unit that will run customers about a grand to replace."
"What about puddles or other standing water that a customer might drive through?"
"Our target customers don't drive these machines in bad weather so im sure it won't be an issue. Now we just need a name, something catchy that also shows off the new tech, how about Digi-Ignition or Tech Spark....."
"Sir how about Opti-Spark?"
"Jenkins you're an idiot and you're fired clear out your desk immediately and vacate the building!" Jenkins leaves
"All right Opti-Spark it is, make sure the powers that be know this was all my idea! Thisll go down as the best thing since the small block and corvette were born, and the entire automotive world will remember this as fondly as they do those two great icons of GM"
Six months after the Lt1's launch in the 92 Corvette customers were ready to lynch that asshole and no updated opti ever really resolved the "reliability issues" although adding a fresh air vent and drainage certainly helped the opti sparks shittieness was only highlighted when the Grand Pubah of V8 engines the LS1 showed up with coil near plug ignition that used the same sort of timing devices (plus a cam sensor) that my old 88 Buick had.
Sorry for the rant got a broken leg and stuck inside, hope it was at least entertaining. Oh and before anyone chimes in with "my opti is original with 5 million miles and has never given me a problem, know that your the exception not the rule, you're that blind squirrel all happy because he found a nut
I like this motor do to the factor of it's parts they would be cheap to come by for some of them anyway and if you're getting high performance if those numbers do exist it's horsepower and torque value give me a pretty good engine for going into some old vehicles that you want to keep around but fuel efficient and Light I keep the reliability of its older motor but with a modernized version and well again anything can be fixed with gearing
I want this for a replacement engine for my 2004 E150 Ford Work Van. The Triton V8 that is currently in it is running quite strong and has been very well maintained, but this thing looks like it cuts half the weight and more or less doubles the power. My only concern is towing a dump trailer, but as long as it gets 300 foot pounds I think it will be alright.
Looks like an improvement over the old 3.7 mercrusier Al block, open deck, BBF headed, 170 motor. Big 4s are cool! I'm thinking a GM 3.0 4 cyl industrial motor with a bowtie head and a turbo wouild be nice for a flatfender or early CJ-5. These are awesome!
grab a motor from a fork lift, swap the cam to a 3/4 or one from a marine engine, use a clifford intake and header, it's a beast
If they make this into a straight 6 it would take over the world!!!
5.4 6cyl LS for the win🎉🎉🎉
This would be great for my ranger!
Similarly to the Toyota 1.8 from the 80s.
there's a lot of us with boats powered by the 181 gm motor, when will this come about and will it be made to replace a boat or fork lift motor ?
Sweet! So it is a LS style "Iron Duke". I bet it would be a ton of fun in a front wheel drive 88 Buick century. I had one years ago that I built up pretty good.
Not Iron Duke but the old Chevy II 153
@@troynov1965 I'm thinking a modernized Offy here...
It would be a riot in an old s10
With a BPE rec port head a 7.2L LS V8 should be capable of 650hp 575tq n/a, I would expect half of that, 325hp 285tq. I really would like to see a cross plane crankshaft in this engine so that it would sound like a baby V8, I would be completely on board then. Otherwise, there are plenty of cheap aluminum 5.3s in junkyards that would only be 100lbs more weight, easily half the price and capable of 450-500hp depending on cylinder head, compression ratio and cam timing. Of course even the diminutive 4.8 can handle 1,000hp at the crank with boost so any LS/Gen III/IV engine is a monster. The possibilities for the Atlas 4200 are insane too as there is growing aftermarket support for those thanks to Nivlac57.
First of all, it needs a balance shaft
Yeah right more like 250 na max.
I would estimate 275 horsepower and 260 foot pounds of torque N/A
So here is a bit of an observation more so. There are thousands of LS Engines that wind up to 7-8k RPM, because the heads can flow up to that point with minor changes here and there. So I would not say it isn’t too far fetched to say that with the correct camshaft selection (pending on aftermarket availability) that the engine would be able to withstand 7-8k RPM not to mention that the rotating assembly is literally half of a standard LS engine so on paper, with the correct parts (say 6.00” rods pistons, and a bit of touch up with the heads to better improve flow and compression.) should be a beast NA let alone Turbocharged. I personally would like to take one of these and see what I can push out of it when the aftermarket becomes available.
It’s bacially a 1/2 a 400sbc…. Yep … still want one
This would be a fantastic solution to first Gen Isuzu Troopers. Thats what i want it for.
I have 90 K 1500 with 5.7L v8, factory advertised 195 horse. Not enough to pull its own weight up at 5% grade. Toyed with LS swap. Then spotted this. Interested in torque that will pull this truck and moderate load up of 5% 6% grade even if I have to run it in third gear revved to approximately 3000 RPM. Will be watching this one.
I wouldn't Turbo-charge it because of the idea that it isn't a very high revving engine; however a supercharger slapped on this with about 12lbs of boost and a good underdrive pulley setup might boost that 340 and 500 number and have it coming in much lower making it a good 1/8th or possibly 1/4 mile machine. When you consider what goes into turning good ETs at the strip having good torque numbers to get you off the line is paramount and this is making great power in that regard.
Now for those that are looking at the numbers and wondering why they should be impressed by them, think about this for a second, a NA 6.4 Hemi puts out somewhere around 480hp and 475 lbft of torque but weighs damn near 700 lbs fully dressed. When you consider this 3.6 has half the cylinders, half the weight and makes almost 75% as much hp and makes almost 1.25 times as much torque it is amazing.
Go drive a Scat Pack Challenger or Charger and launch it hard a couple of times and then imagine what that would be like if you shaved almost 400 lbs out of the front-end. I can tell you what is going to happen, by lightening the front, under inertia, you are transferring more weight to the rear of the vehicle and that is always a plus when you want your tires to bite and let you leave the line like you were shot out of a cannon.
Now, if the engine is equipped with a gear to gear timing set, the proper cam, and the porting of the heads are done accordingly, being able to throw between 18 and 20 lbs of boost at this bugger to make it produce mid to upper 400s maybe even 500s for hp and well into the upper 600s for torque is not unthinkable depending on what style of forced induction one decides to throw at it.
Think about the new twin turbo 3.0 Hurricane inline-6 that Chrysler released and this little 4 banger is 5/8 of a liter larger yet and already makes more torque with lower HP and a single undisclosed turbo. These are pre-production baseline numbers that we are receiving, let some mad scientist with a flow bench, engine dyno, and a full-on machine shop get experimenting and who knows what the possibilities are? I think they are coming to press with a safe baseline crate engine that will reliably perform as is to spur interests and that the real sorcery is still in the making. You don't come out with the peaked performance variant first and then tame it down, you start safe get real world application data, forum feedback, and build up from there. Just saying.
I'd buy it today if I knew it could adopt in a Chevy Colorado truck .
it will handle torque definitely.
if it revs to 5500rpm, well thats useable for any smaller pickup.
Wonder if I could put this in my bayliner looks like a Mercruiser 3.0 block
I'm going to guess it's a little over 200 hp and 250-300 ft/lbs of torque NA. Probably ran it on 10-12lbs of boost with a 48-58mm turbo. That would be the most representative setup. This engine and a turbo that is little on the small side for a 3.6L, enough boost, but not crazy, would work very well for a light truck or off-road setup. It think that's who this is for. This is a gas competitor to the Cummins R28 crate setup. If you're buying this for another reason, I'm curious, but it would seem a strange choice. Hopefully, they can get this out for under $6k.
I want a 5.25L inline 6 based off the 7.0L Z06 dry sump LS. With a turbo…
I would like to see some dyno results
I like it, probably be a real cool rat rod engine 🧐🤔 conversation piece anyhow 👍
I'm hoping they do make it to production, my vitara needs a transplant lol.
A question for the next video compatible transmissions
I'm ready to hear if it's going to be real and what the price will be. I'm ready to get a new engine for my jeep wangler YJ. I think this will be perfect for it.
Would this bolt up to a 4l60 70 80?
I expect 220ish HP NA depending on compression
Maybe a little more. Big cam LS engines easily do 80hp per liter. In this case that would be like 264
What about aftermarket cams
This would be a total blast in a Pontiac solstice...
I didn't catch the bell housing bolt pattern.
GM will probabaly make a version of this that is a 3.3L turbo 4 cylinder to replace the 2.7L 4 cylinder, basically half of a 6.6L V8 l8t gasoline engine from the newer model 2500/3500 GM trucks.
How many valves per cylinder??
Another thing I just thought of, Ford tried a short lived official program with their other 2.3 4cyl, the HSC, for mostly the same application this little GM is probably meant for (not a Lima, completely different engine, HSC is a pushrod 4 you got in the Tempo, Taurus and Aerostar, I'm not a fan of it; really a 300 straight-6 with 2 cylinders lopped off, they shared some parts. Not bad, but God himself with magic can't rev it past 5,000) and if I remember right the program was aimed at marine & off-road too. That's where Ford messed up, trying to hotrod the pushrod-4 while wholesaling Lima OHC's to heavy/industrial, totally ass backwards. Oh well that's the 90's for ya. It'll be interesting to see where this Ironduke reboot goes I honestly mean that
Awesome, but it's all moot if you can't buy one....
It looks like a mercruiser block..they use a lot of chevy parts..there is tons of them around.
I need one. Thats all I have to say
seem like a good motor for 4x4 with a newer style tranny. strong simple more power then what we got in the 80s 90s or even older. But more simple the doing a V8 swap.
I'll be perfectly happy with this in my 3000 pound truck.
RPM's on a HP - torque graft ?
I like it. I think there’s too much focus on the “old school, primitive” pushrod setup. Let’s remember 1000-1200hp is pretty common in the pushrod LS V8s and plenty seeing 1500-2000hp and even more. The materials of parts are more important than if it’s primitive or not in this case. That design can easily hit 800+ Hp if built right and with a rev happy valve train, large turbo and race fuel. I’d love to see this engine in action.
I want it for my Vega
What is the bore spacing, if known? I'm assuming 4.400" since the LS cylinder head fits.
No mention of spacing
If it is based of the GM Vortec 3000 engine, which is the latest version of the Chevrolet 153 I4, then the bore spacing will be 4.4"
@@geoffmooregm Thanks for the info!
Thinking about putting that in a civic
If they make it affordable it’ll sell great. I’d put one in my jeep.
Does the ls head fit the iron duke 2.5 block???
No
Its not a Iron Dookie block but the old Chevy II 153
So what trans to hookup to this engine
About any GM trans will fit.
My Toyota 2.7 is also 2 bolt mains and is currently pushing 380-410 hp depending on weather. I had a lot of fretting at the cap once I started reving past 8.5k the solution was to increase flywheel and harmonic balancer weight as well as go to a 2" rod bearing vs the 1.78. Fret still happened so next I'll be putting a steel girdle and ladders across the caps. If the issue persists, I will have to open up the bearing clearance half more.
Prices please.
Transmission?
I would bet you could cut it in half, whatever the power number is now boosted usually cut it in half or a little less than that.
I wish it was like the old days with the giant GM diesels...how many cylinders do you want and how large would you like them?
The things I am skeptical with this engine.
No 1: I haven't seen any videos of it running. If anyone knows of a video showing it's running please post here. I understand it's in concept phase, but surely the concept engine should be proven it can run.
No 2: Engine balance and vibration. Large 4 cylinders exhibit much secondary order vibration which can limit engine speed. Looking at the block, there is no provision for a balance shaft. I'm interested to know if this would be a development in the future.
No 3: The specs, quoting torque and power figures without the RPM doesn't really mean much. If they have done testing and have power and torque graphs, this would be more meaningful and also indicate to us maximum RPM.
A 163$ ebay GT-45 turbo would easily push those numbers.
Want one for my 82 Toyota truck 4x4
Same for my 80...
If this can put out 300 Hp at 300 lbs that's lighter than a 9 cylinder Ivchenko AI-14, which is 260 Hp at 434 lbs. There's a lot of aircraft this might be used on.
How much is it?
There is way to much emphasis put on 4 bolt main caps, imo those 2 extra bolt just makes most people feel warm n fuzzy to see them. Yes the extra bolts do increase clamping power but it basically just helps stabilize the cap and helps spread out the load but as far as clamping power there contribution is miniscule, about the time the cap is relying on those outer bolts to hold together it's likely too late, if parts didn't scatter there's likely already damage. Besides when was the last time you saw a grenaded engine where the crank popped off the block... Welp the rods held but the caps didn't... Never. Obviously when you get into the big HP engines they play more of a role but in a 300 or 400hp SBC it doesn't matter if it's 2 or 4 bolt and if i remember right with the 400 SBC the 4 bolt are the weaker blocks. And if your doing a factory block high hp SBC build you want to source a 2 bolt because then it can be converted to a splayed bolt cap if you start with a 4 bolt that's what you stuck with and they are not much better than a 2 bolt.
I Feel Like I'm Watching Richard 🙃
So this thing is going to be more expensive, heavier, and produce less power than K-series. How is it a better choice?
This is great for the small spaces, l8ke the Metropolitan Nash.
This is really similar to the 3.7 mercruiser
Stroke has almost nothing to do with rpm that is mostly vaule train. Having an ls head with the right cam and spring setup this could rev to 8k.
Side loading, R/S ratio, piston speed all have to do with stroke.
No without vibrating itself apart.
All i can say about this engine is "Shut up and Take My Money !"
I wish they would make a complete ls 4 cylinder based on ls block , none of this Ford shit . I would however do a specific 4 cylinder crank and balance it to 9k rpm .
👍👊
👊
My thoughts are still kinda the same, neat idea but a bit too little a few decades too late.. I don't think anybody (in 2023!) will really want to spend Blue Print kind of money on a pushrod Ironduke-based platform when OHC Lima 4's (that's the motor in your old Mustangs, Rangers, T-Birds etc) in the Turbo Coupes were pushing 400hp in the mid 80's and Esslinger is STILL supporting them (10k 550hp screamers without any major reengineering for midget/jr sprints). Fantastic little engine, cast iron blocks but probably still less weight, and OHC. You technically can bore & stroke up to 3.1L but isn't ideal (bore spacing becomes an issue). Now where this Ironduke/LS graft has the upper hand is in MASSIVE head availability, I can get on board with that. But again, I won't pay Blue Print kind of money to be left with pushrods & dead weight from all the valvetrain, that's not what 4cyl engines are for.. You only go 4 for the revs & weights, I don't see this ever pulling that off
What is the need for this engine? Ok, it's a 4 cyl that will get me into LS Fest, but other than that it's a heavy, low tec, 4 cyl. If you just want novelty then why would you not just put a turbo Hayabusa motor in your vehicle at that point? Half the weight, more power, more tec, and revs to over 10k. Probably cheaper also.
Throw that little engine, a pinto or mustang 2. U have a nice pocket rocket.
Iron duke?
NO its based on the old Chevy Ii 153 not the Iron Dookie
Mercruiser 3.7L/470
Maybe stock 260hp and some 210tq
Looks like a 4bt. It’s probably bulletproof
Too bad it uses a SBC style cam bearing style and blank diameter and not the larger LS cam blank diameter
0:55 na HP estimation, 200ish with 250 TQ. That's my guess.
The n/a numbers would probably be half😂 if they made it come with a turbski... I'd be about er
Soooooo it doesn't have a Balance Shaft.....about as smooth as a BT4......