Yeah, I know that pistons 0.034" in the hole won't be good for quench.
I looked at a couple brands of those 8 relief pistons and they all look to have a compression height of 1.700. If I get some 1.720" compression height pistons like these:
https://www.summitracing.com/parts/u...0/make/pontiac
That would theoretically put me 0.014" in the hole. Combine that with a 0.040" gasket and I'm at 0.054" quench height. Still not great, but definitely better.
I know you want 0.040" or so... How bad is 0.054"? I know a lot of stock engines were worse than that.
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Matt Wieczorek
1966 Bonneville Hardtop Coupe (family cruiser that we take to car shows)
1967 GTO hardtop, 400HO, 4 speed (don't ask, its a basket case)
1973 Grand Prix SJ (currently doing a rolling restoration)
Trying to find that "sweet spot" between Roadkill and Concours d'Elegance
