Quote:

stock big block iron 3/8"

stock small block iron 3/8"

stock HEMI ???? my aaftermarket alum heads use 3/4" not sure about stock cast iron? I guess also 3/4"?

Aluminum aftermarket Big Block 3/4"

Aluminum aftermarket small block 3/4"

is the above correct?




All my SB stuff has been 3/4" but the rest looks right