360, LA360, or Magnum 360?

They may have been slightly higher compression. And no, the weak link is probally the bolts, not the caps, they are much larger than the typical chevy junk, they need 4 bolts to hold those tiny caps on!

if you place mopar 2 bolt main cap and a chevy 2 bolt main cap next to each other, the mopar unit dwarfs the chevy unit..

:glasses7:
Niice.