318/360 heads,with thumper cam

7duce swinger said

Thanks,are the pistons still ok to use ,even after better springs,or are they kinda on limp mode now,like maybe its no good,find a different block,or better pistons type of thing?also,the engine ran very well before,and i might add that i never really ran high rpm's since i swapped the cam,only a few steps on it,and starting it for the family,and friends,so could it be from the old cam,idk if the cam i pulled out of it was the original.

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Pictures of a few piston tops would really help so we could see what your seeing.

My thinking is, and others may disagree, that if it was just a kiss the pistons are probably reusable. Anything more than that would be questionable. I would also check the valves, guides and pushrods for any damage or bending.

The bottom line is once you've determined all the components you are going to use you'll need to mock up one head and check your piston to valve clearance to make sure.