Quote:
Originally Posted by PAUL K
I'm guessing 20-30 horsepower gain with the head milling and 1.65 rockers. You will feel an improvement, get better mileage and see a difference on the time slip if you race your car. I'd also adjust the deck height with a thinner gasket if the piston isn't even with the deck.
Is it worth the work, depends how much the performance difference means to you. You'll need to mill the manifold or manifold side of the heads. To do the job right you should leave a step at the bottom of the intake side of the head (assuming you choose to mill the manifold side if the head which is usually the better way) for the valley pan to seal and you might need shorter pushrods.
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Paul, I've tried to do some research on thinner gaskets and just haven't found enough to feel comfortable using them. Do you have any you recommend? Thanks