understanding stroker kits
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Pro
Joined: Aug 2010
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From: Jeddah
understanding stroker kits
i have recently bought a used D1SC kit for my 99 C5 coupe,, i am also planning to install a rotating assembly into LS1 stock block to put more boost,,
i need to understand how to pick the right kit,, and i know many of you have great knowledge to share,, a link to a writeup will be really appreciated,,
thanks in advance,,
i need to understand how to pick the right kit,, and i know many of you have great knowledge to share,, a link to a writeup will be really appreciated,,
thanks in advance,,
Former Vendor
Joined: Nov 2002
Posts: 4,003
Likes: 12
From: Toronto Ontario
i have recently bought a used D1SC kit for my 99 C5 coupe,, i am also planning to install a rotating assembly into LS1 stock block to put more boost,,
i need to understand how to pick the right kit,, and i know many of you have great knowledge to share,, a link to a writeup will be really appreciated,,
thanks in advance,,
i need to understand how to pick the right kit,, and i know many of you have great knowledge to share,, a link to a writeup will be really appreciated,,
thanks in advance,,
Rob.
Former Vendor
Joined: Apr 2006
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From: Portland OR
St. Jude Donor '10-'11-'12
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From: Jeddah
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From: Jeddah
some local tech told me that putting a blower on a forged 383 stroker is an overkill due to short pistons travel,, he said that keeping the stock crank will maintain durability and longer engine life,,
what do you guys think of this statement?
what do you guys think of this statement?
Former Vendor
Joined: Apr 2006
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From: Portland OR
St. Jude Donor '10-'11-'12
You have either a 346 or a 383. The 383 will make more power. Ask him why not a 370 over a 408 ?
Bigger engines make more power. Put 10 lbs on a 347 and 10 lbs on a 383 and what will make more power?
Bigger engines make more power. Put 10 lbs on a 347 and 10 lbs on a 383 and what will make more power?
Last edited by 99blancoss; Dec 19, 2010 at 12:03 PM.
8th Gear
Joined: Dec 2010
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of corse larger CI will make more power, or the same power on less boost. however you want to look at it.
But in my years of experience while not so much with LS motors mostly the new gen hemi area I find that The added stroke is more likely to crack a block while i have never seen a stock stroke shortblock break at all. Same concept applies more stroke = more stress on the sleeves. but there are always advantages and drawbacks.
me personally Would go with the stroker kit, it will be faster. even maxing the D1 out on both combos.
its not something i would consider overkill at all. a f-1 on a stroked aluminum block maybe. but the D1 should max around 800 rwhp. You will be happier with a D1 @ 10 psi on a 383 making 650 rwhp than a D1 @14ish psi on a 346 making 650 rwhp. they would both last over 100k miles with a good tune and the 383 will make much better average hp/tq
But in my years of experience while not so much with LS motors mostly the new gen hemi area I find that The added stroke is more likely to crack a block while i have never seen a stock stroke shortblock break at all. Same concept applies more stroke = more stress on the sleeves. but there are always advantages and drawbacks.
me personally Would go with the stroker kit, it will be faster. even maxing the D1 out on both combos.
its not something i would consider overkill at all. a f-1 on a stroked aluminum block maybe. but the D1 should max around 800 rwhp. You will be happier with a D1 @ 10 psi on a 383 making 650 rwhp than a D1 @14ish psi on a 346 making 650 rwhp. they would both last over 100k miles with a good tune and the 383 will make much better average hp/tq
Le Mans Master
Joined: Dec 2000
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From: Blue Ridge Georgia
I haven't had a 383 in an LS motor, but I have had a 383 in a SBC that I had in a 72 Camaro. It is a big difference in torque. If I had the bucks I sure would go the 383 in the LS.
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Pro
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From: Jeddah
what if i decided to drop the blower and go only for stroker, heads and big cam,,
what compression is recommended?
with 383, 243 ported heads, a cam in 24X/25X .650 range, LT headers, exhaust, vararam and LS6 intake,,, how much power am i looking @?
what compression is recommended?
with 383, 243 ported heads, a cam in 24X/25X .650 range, LT headers, exhaust, vararam and LS6 intake,,, how much power am i looking @?
Thread Starter
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From: Jeddah
if i want to spray later,, what considerations should i make regarding pistons, compression, etc.?
Burning Brakes
Joined: Mar 2011
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From: Houston Tx
Scat forged rods, 300 bucks, mahle forged drop in pistons, 543 bucks, oil pump and bearings, and you are good for at least 700 dependable on that stock motor you have. That is what I would do. If possible, and the hp goal can be reached, I would stay 346 and internal balanced. Forged 346, comp cams 277 centri grind, and 700-750 should be no problems with that blower.
Come on guys, don't tell him to go bigger if he don't need it. That is a waste of money.
If you spray, and traction is an issue now, stay 346, if you can hook it, go big.
Come on guys, don't tell him to go bigger if he don't need it. That is a waste of money.
If you spray, and traction is an issue now, stay 346, if you can hook it, go big.
Race Director
Joined: Sep 2005
Posts: 11,060
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From: Pasco WA
Scat forged rods, 300 bucks, mahle forged drop in pistons, 543 bucks, oil pump and bearings, and you are good for at least 700 dependable on that stock motor you have. That is what I would do. If possible, and the hp goal can be reached, I would stay 346 and internal balanced. Forged 346, comp cams 277 centri grind, and 700-750 should be no problems with that blower.
Come on guys, don't tell him to go bigger if he don't need it. That is a waste of money.
If you spray, and traction is an issue now, stay 346, if you can hook it, go big.
Come on guys, don't tell him to go bigger if he don't need it. That is a waste of money.
If you spray, and traction is an issue now, stay 346, if you can hook it, go big.
Drifting
Joined: Feb 2010
Posts: 1,310
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From: Arlington Texas
The main thing you are going to save on by going with a 346 over a 383 is a crank. The 383 is going to take a 4" crank and that is going to run you around 800. The real difference isnt going to be so much in peak power of a 346 vs 383 but the power under the curve. The 383 is going to have more power all the time. More torque down low. If money isnt an issue go with a 383 or even 402/8. The 402 and 408 are going to be even more expensive because you will have to get a block with a 4" bore. You cannot bore a ls1/6 block out to a 4" bore.