High Compression LS7 Engine Build - 13.0:1
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- Опубликовано: 1 ноя 2022
- HOW TO VIDEO LINKS:
How to Gap Piston Rings - • How to Gap Piston Ring...
How to Check PTV Clearance - • How to Check PTV Clear...
How to Measure Bearing Clearance - • Measuring Bearing Clea...
How to Measure Pushrod Length - • How to Measure LS Push...
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www.smedingperformance.com
@smedingperformance
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Авто/Мото
Forced induction is cool but man N/A is so intriguing
Just like NASCAR…
Lol I always say that, any one can add boost and be fast, but to do it n/a you a bad builder/driver
I've owned a number of force-induction cars; turbo and supercharged.. and nothing (IMO) is near as much fun as a high HP N/A build.
I appreciate seeing you turn it over after every pair of pistons go in
It’s surprising how many people just spin far enough to install the next set
why? do u think its just a good habit to build?
Accuracy: hitting the right spot
Precision: hitting that spot every time
Great video! I'm excited about next week's build!
You really go into detail to making things are perfect.. I may have to grab one of these engines up ..
Prefer the smooth lines of natural aspiration. No extra things hanging of just one jewel in the crown... Oh and 623 BBC and 900hp on pump gas.. e85 oh yeah.
Forget the haters your doing a great job keep up the great work and we all appreciate your time..
Good work 👍
Amazing work ethic and cleanliness. Ppl take notice! Would love to see this motor in a vid on the road and the owners response to it. Do you video long block builds too?
Very enjoyable.
Great video!
Thank you!
Great job. Love the shop. You should consider getting a sunnen dial bore gage and setting fixture. Lots of money, but worth it!
We have one for our cylinder hone!
Love to see the power this engine puts out on a engine dyno
Liked, subscribed, awesome video.
Tag the customer car ….. I wanna see the dyno vids … nice work
DUDE! I wanted to see the pickup and pan assembly of this wild power plant. Come on!?!?
LS7 with a GM PERF DRY SUMP!
I appreciate you showing what you did. I like your channel and the builds. Don’t skip the details on these special projects, dude!
You knucklehead!
It’s OEM, you can look it up
You forgot to mention to split your main and rod bearing oil clearance number in half, because you are checking the inner diameter, not the clearance between the surfaces. I learned this on our Chevy 230 i6.
I have a mallet cars built 427 with an a&a vortech 6lbs boost. 750rwhp on a 93 tune.
This will be a healthy motor for sure. Wonder why he didn't opt for an ATI balancer?
I’d like to see a video of the car running this motor. My LS7 is stock compression but cam specs are pretty similar.
Aftermarket casting heads would be better imo but hey i think it will still outperform above all expectations
8000 rpm with that hydraulic cam? Wow!
I see a lot of clearance checking, which is great. But they all were perfect. What do you do if they are not?
Can you do a video on the cathedral port r1, r2 and r3 cams?
do the steel rods make the LS7 feel any lazier compared to the Ti rods?
I emailed you guys for a build quote and was told LS7 blocks are no longer available so it would have to be a dart block.
Would you recommend doing anything to stock ls7 engine block, when gettin the head issue addressed ?
Always wondered how they knew the clearances would grow exactly so many tho when it is running and hot.
Guess they have a little bot with a little Mike in there that does that.
Lol, I like this comment
Great video as usual!
My question is, will this build with the added compression and increased cam lift & duration still run pump gas? What octane will be happy do you think?
Thanks.
It will run 100% E85
@@JacobVillemain thanks for your reply :)
How do you prime the oil system prior to starting the engine.
Deck height should be measured with or without rings?
Hey guys , I have a question, would y’all want to work on a 6.5 turbo diesel ? For a refresh . I know y’all do gas engines , but would u want to go into the 90’s diesel world ????
What to do when you buy a 2008 engine for a 2007 car? does the ecm work on the swap engine if it is the same LS7/LS7
Curious as to why you were marking the bolts with a blue marker on the timing chain? What is that for?
hey man, I’m considering becoming a small motor tech / mechanic. Would you recommend it or have any advice? And what is the money like?
Wait so you can run aftermarket connecting rods with an OEM forged LS/7 crankshaft without doing anything to the rod journals ???? Just rebalance the crank is all ??
What’s the tang orientation on the main bearing on this motor?
I need that in my C5 Z
Me too tbh
That's a pretty similar cam spec as I'm running (253/267 .665/.665 116+6). But I built my "LS7" to 502ci. That's a lot of cam for 7 liters.
When the customer gets annoyed by the giant gap between 4th and 5th because the motor won't cruise under 2K RPM, the close ratio ZR-1 transmission will take care of that. You can get a built 6060 with 3.90 gears for the low low prices of only $16K from RPM transmission. (ask me how I know).
Now to to go find the video of how it dyno'd and drove...
On the main caps do all the arrows face front of the block?
How much HP can it put out being NA
All your N/A builds get 13.1 compression? I’m guessing with the big cam overlap you can run pump gas.
Still waiting to see a 4.6 Mod Motor build
Hey Jacob, at what power level do you recommend going with ARP main studs?
1,000
Hi Sir I am doing a 3d printig scale LS engine can you tell the measure of this block?
I would love to see the dyno numbers on this engine!
I’ll have them hopefully by end of this month. Gotta get that break in done once the car gets put back together next week
@@dominickguerrero5664 what did this build end up making???
@@703z06 686 still stock head casting. Looking to upgrade soon. Should make a little over 7 here soon
No heads?
1000 horsepower?
What’s the RPM redline on this motor, the new pistons are lighter than stock? But the stock rods weren’t sufficient or needed to be replaced? Love the enclosed dry sump, and what’s the power goal?
Engine should easily make 650whp
New redline probably 8,200. However the long runner manifold the customer will be running will limit it to 7,400 before running out of air. With a larger plenum/shorter runner manifold the engine could easily turn 8,000 & make big power
Im 9.8to1 compression boost buil 427 ......most guys on instagram etc dont know the differecne between a boost build and n.a build
Why wouldn't you use the OEM Ti rods?
Yea i was wondering why the heavy h beams if its na…
Curious where you got the new block from? I want to put an ls7 in my truck but I’ve been looking for just a new block and can’t find one anywhere all local dealers said they don’t have them and can’t get them which I’m not sure is true
Ls7 is discontinued
is the term at TDC "quench" or "squish" for compressed volume? I knew a high performance jetski engine builder that called it the "squish" volume. Which is correct? Both?
Same same
Squish is technically only the small part between the piston and head that‘s not connected to the combustion chamber volume
So what happed when they chose to run boost😢.The always say no power adders until they add them😂
Curious, is that the recommend torque sequence? Seemed awfully non-standard to me. ???
I do not believe in torque sequences for main caps that are not connected.
What is your opinion on taking the lS7 to 440CI? Looking to get as much power as possible NA and still drive on the street.
I am a big fan of running a 4.125” stroke in the LS7 block.
@@JacobVillemain Nice I keep hearing both sides of the debate. I knot its only 13 CI but if you have to tear the engine apart anyways why not
I've heard that the SDPC spec'd 4.100 Callies crank offers better oil control over the 4.125" stroke....
@@milojanis4901 one of those things where if you ask 3 builders what you should do, you’ll get 5 answers.
Where did you buy a new LS7 Chevy Gen IV block? As far as I know, Chevy performance no longer sells the LS7 427 production block.
Customer provided.
I got really confused on the math for the quench, could you explain please?
How 10th+ an 8th- averages 1th ofth?
Thanks
Simple math, just average them together
@@JacobVillemain What an idiot🤦🏻♂️ thank you!
What oil pan was that
OEM LS7 oil pan out of a Z06 Corvette. Grand Sport corvettes would also have the same pan.
Now what power is the customer chasing with this combination
650ish wheel
@@JacobVillemain so high 8’s to low 9’s down the quarter mile
@@stephennummie7631 not even close
@@390nm why you say that
@@stephennummie7631 It takes 850-900rwhp to run 8.99 in a full weight c6 z06 if its converted to a th400 or powerglide. I dont think there is a single c6 z06 reliably in the 8s for many runs with the 6 speed manual on corvetteforum.
Why do use valve timing at .05 ?!?!?!?!? Use .006 timing or duration its easier tells us more about camshaft !!!!!!!!!
Block wasn't designed for 13:1. Good luck. LSX iron ftw
I’m aroused
Every day
You can save the block ,you just do not know how. And you are reusing the crank,and did it wrong,good luck it running lone time ,and you lost 50 hp without starting.
@ Marc cres
Please share the link to your RUclips channel showing all of us how YOU do it.
Then take a remedial spelling and punctuation class.