Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

To stroke or not?

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Old Jul 8, 2021 | 10:08 PM
  #21  
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Originally Posted by JF74chevelle
if I want to use that crank, could I use my current gen 4 rods and get pistons to accommodate the stroker crank and still use the gen 4 rods?


thinking I’ll run the above crank, and these pistons

https://www.summitracing.com/parts/dms-k1931-4000

that’ll allow me to use my current gen 4 rods
I can't speak for Summit's cranks but usually the stroker cranks have the counterweights cam cut for a 6.125" rod, so be sure to check the clearance between the counterweight and the underside of the piston pin boss at bottom dead center. The bottom of the cylinders will most likely need to be clearanced as well.
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Old Jul 9, 2021 | 01:14 AM
  #22  
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Originally Posted by KCS
I can't speak for Summit's cranks but usually the stroker cranks have the counterweights cam cut for a 6.125" rod, so be sure to check the clearance between the counterweight and the underside of the piston pin boss at bottom dead center. The bottom of the cylinders will most likely need to be clearanced as well.
I decided it wouldn’t be worth it for my to stroke this motor for my purposes, I picked up a stoke crank. Now I need to get everything balance to get the shirt block back together.
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Old Jul 9, 2021 | 01:15 AM
  #23  
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I want some opinions on this, for my setup, should I stick with the 317 heads and get them milled a little to bump the compression or should I go for the 241 heads? The heads I pulled off this motor are super clean.
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Old Jul 9, 2021 | 07:26 AM
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Originally Posted by JF74chevelle
I want some opinions on this, for my setup, should I stick with the 317 heads and get them milled a little to bump the compression or should I go for the 241 heads? The heads I pulled off this motor are super clean.
Sell both and get a LS3 top end, because LS3 stuff flow a lot better, makes more power,and are a good value for the money. Heads are $500-$700 and I just seen a L92 intake with fuel rails and injectors on ebay for $125. A L92/LS3 top end will perform way better than 241 or the 317 heads.
You will make more power with the L92/LS3 top end without raising your compression.

Last edited by 383z; Jul 9, 2021 at 08:06 AM.
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Old Jul 9, 2021 | 08:02 AM
  #25  
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Going back to your comment about raising compression.
I would avoid that due to the vehicle being your daily, the big tires, all the towing, and trips you make. This is not your weekend racing car. Filling up with 93 octane gets expensive. I know, because I have 3 vehicles that run on it. I would love a daily that runs on 87 octane especially with the way prices are currently.
Personally, I would have the highest compression that could still be ran on a 87 octane tune. I just watched a YouTube video that made me consider this.
With a 6.0, L92/LS3 topend, cold air intake, cam, full exhaust, and 87 octane tune you should be over 400rwhp easily with good driving manners, power, and a reasonable cost to fill up.

The LS3 in the video only has cold air intake, headers, and tune on 87 octane and made 411rwhp and 420 rwhp. The engine has a compression of 10.4 : 1 if it's a L99/LS3.
Let's compare what I'm suggesting for you to this LS3/L99.

The difference between a 6.0 and 6.2 block is that the LS3 has an extra 12 cubic inches and/or .2L of displacement which is not much.
With a 6.0, L92/LS3 topend, cold air intake, cam, full exhaust, and 87 octane tune you should be at the same place in power if not more compared to the Camaro in the video.
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Old Jul 9, 2021 | 12:55 PM
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Originally Posted by JF74chevelle
my buddy has a set of 241 heads he’s pretty much give to me, running those unported, with a stock truck intake, what cam would you recommend? This’ll be a daily and occasionally towing. Road trips etc.
209/217 112 + 1 .550/.550 SUM-8719R1 is for use with our LS6 springs and works really well for occasional towing. Just a hint of lope and an easy tune!
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Old Jul 9, 2021 | 12:56 PM
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Originally Posted by Corona
Easy attention get"er with a quote for a World wide question...

Summit Racing, do You Guy's offer the or a
Center Counter Weight Crank? If so is it at Fair market place cost? Maybe a good idea if not into production...

😉
We may or may not have this in the works for you
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Old Jul 9, 2021 | 12:59 PM
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Originally Posted by Summitracing
209/217 112 + 1 .550/.550 SUM-8719R1 is for use with our LS6 springs and works really well for occasional towing. Just a hint of lope and an easy tune!
that’s the cam I was looking at. Thank you.
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Old Jul 9, 2021 | 01:14 PM
  #29  
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Originally Posted by Summitracing
We may or may not have this in the works for you
The more Available the cheaper the Cost.. 👍
Like going into Best Buy and saying Price Match it... $1000.oo is the Going Cheap Avg..
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Old Jul 13, 2021 | 09:08 AM
  #30  
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Curious which CCW cranks ER would not consider (due to quality based on comment in another thread) compared to a non ccw crank of same price or cheaper.
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Old Jul 13, 2021 | 04:00 PM
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Originally Posted by tblentrprz
Curious which CCW cranks ER would not consider (due to quality based on comment in another thread) compared to a non ccw crank of same price or cheaper.
Between me and U I'd Run Eagle if it were available @ a good price..
Reason being? Erik and SAM used to run it in there stuff... Fastest 408 na Lq I know of crank was a Eagle.

CCW is good for and With Rpm... If you've gotta question a Purchase or material...👎

Me I'll go research and post on The Question of, on here and the other 2 Forums. Besides the first thing of a PM with the Part in question.

TSP has a CCW crank for $1k...good Balance + it's Forged what's the Problem? If we aren't adding 40psi I'd think we're Good...cranks Just don't Break and @ $1000.oo seems like a Good idea Vs the 700 dollar regular forged steel Crank.


If you want the Best CCW crank there's only a few Names...
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Old Jul 13, 2021 | 05:00 PM
  #32  
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Originally Posted by Corona
Between me and U I'd Run Eagle if it were available @ a good price..
Reason being? Erik and SAM used to run it in there stuff... Fastest 408 na Lq I know of crank was a Eagle.

CCW is good for and With Rpm... If you've gotta question a Purchase or material...👎

Me I'll go research and post on The Question of, on here and the other 2 Forums. Besides the first thing of a PM with the Part in question.

TSP has a CCW crank for $1k...good Balance + it's Forged what's the Problem? If we aren't adding 40psi I'd think we're Good...cranks Just don't Break and @ $1000.oo seems like a Good idea Vs the 700 dollar regular forged steel Crank.


If you want the Best CCW crank there's only a few Names...
Corona, I must say this post is informational and well written.
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Old Jul 13, 2021 | 05:14 PM
  #33  
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Are CCW cranks just flavor of the month or if you have two NA engines sitting side by side reving to 7500 making 650 hp would there be any indication that one is better than the other?
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Old Jul 13, 2021 | 05:18 PM
  #34  
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Originally Posted by spanks13
Are CCW cranks just flavor of the month or if you have two NA engines sitting side by side reving to 7500 making 650 hp would there be any indication that one is better than the other?
Brother it's all about the Spinning...

4.250 CCW vs 4.250 regular both going to 8700 rpm ...CCW wins
Greg Good Build with a 4.250 crank and it having problems...Erik answered I believe...
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Old Jul 13, 2021 | 05:21 PM
  #35  
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Chevelle You can't Let everyone Know I can give a Basic Informative Answer...

It does make a Person....Think.

There's Something's I ask And never get a Answer...then I have to think about it... 🤯

It's generally a Common Sense answer.
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Old Jul 13, 2021 | 05:27 PM
  #36  
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Originally Posted by Corona
Brother it's all about the Spinning...

4.250 CCW vs 4.250 regular both going to 8700 rpm ...CCW wins
Greg Good Build with a 4.250 crank and it having problems...Erik answered I believe...
But in a modest build is there anything noticeable? You don't really hear about a stroked LS3 or ls7 killing bearings reving to 7500 with a stock style crank.
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Old Jul 13, 2021 | 05:40 PM
  #37  
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The Avg guy Doesn't need 1...but if you're getting them @ $1000.oo why Not vs a Regular Callies or K1 crank.

👍
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Old Jul 13, 2021 | 05:52 PM
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One of the Main Reasons to go CCW ...also sounds like What Greg was going through...

https://www.yellowbullet.com/threads.../post-72874828
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Old Jul 13, 2021 | 05:56 PM
  #39  
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Biggest benefit for CCW Crank is from 7000+RPM NA,
If not spinning 7500-8000 RPM+ NA or BIG Boost, may be hard to justify.
Kinda like the Flat Plane Crank as well.
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Old Jul 13, 2021 | 05:56 PM
  #40  
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Also my Mistake....
TSP Sells a CCW crank @ $1k not they Make and sell a CCW crank..

https://www.texas-speed.com/p-7299-c...tor-wheel.aspx
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