I am assuming a 235 or the like chevy. Metal to the outside. You could also use a rimflex gasket. Excellent at sealing the intake and exhaust, one piece. I have never had to use any other sealant on the stock gaskets and absolutely none to be used with the rim flex gasket.

https://www.summitracing.com/parts/...d0Zf52QIVnYuzCh0ILwvYEAYYASABEgLctvD_BwE

Last edited by Dragsix; 03/19/2018 8:06 PM.

Mike