Not Ranked
If your heading for the 400HP and above go with the forge pistons, Hipers will not live that long and cannot take the detonation that the forge pistons can.
Another note, Keith black pistons need alot of ring gap, around .028" for the top ring, get wrong and the ring butts and the top of the piston comes off in pieces.
I have ran Keith black pistons in my windsor (circle track car)
with great success 11.3 cr 6400 rpm for over 5 years and the pistons look great. but I'm only putting out 368 HP ( two barrel carb. stock exhaust manifolds.)
Just my opinion.
Dave
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