My block is o-ringed and I'm gonna use copper head gaskets, probably Summit brand.

I know it was mentioned that 'The right Stuff' and some RTV's were ok to seal the water jacket holes. I went to NAPA yesterday to buy the right stuff but was not in the mood to pay $21 for the small tube of it. So I bought orange RTV, will this work ok?


1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual