max hp on stock head

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Nov 20, 2007 | 07:13 PM

ek9t72

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From: usa

max hp on stock head

well here is my Question what is the most hp that some of you guys have made on a stock gsr head with some ITR OR CTR CAMS

Nov 20, 2007 | 07:23 PM

JDMeg95

Joined: Sep 2007

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From: puyallup, wa, usa

Re: max hp on stock head (ek9t72)

i have a friend that had a 520whp gsr with a pretty much stock head beside springs and retainers to rev higher

Nov 20, 2007 | 07:41 PM

ek9t72

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From: usa

Re: max hp on stock head (ek9t72)

well my car I think is around 680-700whp last time I put it in the dyno it made 644@26psi @ 32-33 it was spinning after 6800rpm

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