LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Max. whp with stock crank and 4 bolt main??

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Old 07-27-2007, 03:38 AM
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Default Max. whp with stock crank and 4 bolt main??

Anyone running a stock crank motor making over 700whp on spray?? Just wondering what the limit of the crank generally is.

As of right now i've made 559 whp w/ stock crank and 2 bolt main.
Old 07-27-2007, 04:28 AM
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Keep the rpm's down is my only recommendation and don't detonate. Anything over 650rwhp and I'd start to worry about it flexing at higher rpm's. How much motor rwhp and how much nitrous?
Old 07-27-2007, 10:42 AM
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I believe Jason Warren is on the stock crank.
Old 07-27-2007, 10:49 AM
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Lot of turbo cars making 1000 hp on stock crank. Shots of nitrous I might worry about since the torque increase is all at once. Shock factor.
Old 07-29-2007, 02:30 AM
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I made 393 motor and 559 spray rwhp. I'm about to rebuild the motor with 4 bolt mains, H- beams and doing some exhaust work. I'm changing to a direct port with progressive. I really don't wanna stroke the motor cuase I have good pistons as is. I also hate spending the money for a stock stroke forged crank.

If I could find one used that would prolly be cool.

My final gaol is around 400rwhp on motor and a 250-300 shot on top of that. Just wondering if the crank will hold.

Does anyone know of someone breaking the stock crank in an lt1?? cause I do not
Old 07-29-2007, 01:49 PM
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I've always heard the stock crank is very strong.

393 rwhp NA...damn! What's your mods? Pm me so as not to hijack this thread, thanks.



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