Decided to hop on my build for my pickup! its going to be a 400 stroker, however, i do need a little advice. im looking at 440 source's 451 kit, and 500 kit. Anyone have any problems with the 500" pistons, considering the pin protrudes into the oil ring land?? Ive also noticed they have new Super Stealth heads, anyone used these, or the regular Stealths? Good, bad, ugly?

Pickup is a 78 1/2 ton, SWB, will be used for street/strip use, mostly 1/8 mile. 2wd.

Thanks in advance,
Bill