Aluminum Block Slant Six Head Gasket Source?

Badvert65 said
Aluminum blocks are open deck. No room to o-ring. If you want to run an Aluminum block, you will basically have no choice but to ante up for one of the expensive gaskets. FYI, I believe the ones available at .org are reusable.
jus sayin...

O ring the 63 or later iron head.....jus sayin'

does not matter what side you O-ring if its a non-receiver job