Stroker question

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Aug 26, 2011 | 08:26 AM

schmendog

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Stroker question

Currently have an 04 M6 LS1 with some mods listed below. Wondering how much power increase I would see if I swapped out my bottom end with a stroker kit?

Currently making 437 rwhp/ 397 tq

Mods:
Svede OTRCAI
42lb injectors
UD pulley
Trickflow 215 heads
Custom grind moderate cam (231/243 113)
Kooks 1 7/8 LT
Spintech 2.5 inch exhaust

Aug 26, 2011 | 08:54 AM

schmendog

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Heres what Im looking at:

4.00 Eagle 4340 forged steel crank
4.00 Ross 2618 forged alloy pistons
Eagle 6.125 H-beam rods
402-CID displacement
11.3:1 compression ratio

Planning on sleeving also

Last edited by schmendog; Aug 26, 2011 at 08:57 AM. Reason: sleeving comment

Aug 26, 2011 | 12:32 PM

Jackus

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Why not just get a lq block instead of sleeving.

You should be in the middle 500s.

Aug 26, 2011 | 04:43 PM

KCS

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I'd bet you make about 440whp.

Aug 26, 2011 | 06:09 PM

FlamingTA

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Quote:

Originally Posted by schmendog

Heres what Im looking at:

4.00 Eagle 4340 forged steel crank
4.00 Ross 2618 forged alloy pistons
Eagle 6.125 H-beam rods
402-CID displacement
11.3:1 compression ratio

Planning on sleeving also

You don't usually sleeve to just 4.0, it's usually 4.125. If you use your ls1 block you will have to do the wet sleeves. Alot of money there. Easier going to a lq9 iron block setup.

Aug 26, 2011 | 07:01 PM

JS01

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Quote:

Originally Posted by KCS

I'd bet you make about 440whp.

I'd say 450rwhp, with about 460-470 torque.

Aug 26, 2011 | 10:15 PM

garygnu

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if you did a 383 stroker using your stock block and a 3.908 bore and 4" stroke ,you could make over 500 rwhp and tq.you will need a new custom cam ,and a fast intake.