piston clearance with lots of NOS

[CharlieB53]

If it were mine I would be asking far more questions as to that upper ring gap with that much kit added. You sure do not want those rings to butt up.

I would also be asking if the upper ring position relative to the piston top is adequate for the increased heat.

Many threads already have discuss that substantial end gap may be run without measureable power difference once the motor is at temp. Stone Cold, that's a bit different. As long as you allow pistons to get to operating temp they are fine.

[qkdragster]

we ran this engine on the hose 2014/2015 ,,, we ran a .032 top gap and an .030 2nd gap ...no indications of ring butting ...best e.t was 6.35 , with a 300 kit alone at Norwalk in the spring ...and later that summer in Chicago ,in the heat , ran a 6.35 on a 300 shot , with another 200 shot for a couple seconds ... So I think they will do fine ...all the pistons we have made are for NOS use ... we just chose to run a N/A class the last 2 seasons ....