1969_Mach1 333 Report post Posted December 24, 2019 What intake manifold gaskets fit correctly on the 390 Ford? I have an aluminum intake manifold (old Holley Street Dominator) so I purchased the Fel Pro Performance intake gaskets, p/n 1247S3. On the cylinder heads, these gaskets leave a small portion of the heat crossover passage exposed on the lower end. This would let exhaust gases into the crankcase. I'm thinking of using stock Fel Pro gaskets with Ultra Grey silicone end seals. Before I do, I was wondering if there is a better option. Quote Share this post Link to post Share on other sites
