A friend of mine asked me to install a new exhaust manifold gasket in his '48 Super, as his old one had developed a leak. When I removed the manifold, I saw counter-bores in both the head & manifold bores, which looks a lot like a mid-30's Chevy I have and which has sleeves that fit into the counter-bores to aid in sealing. My question is, did Buick use sleeves between the exhaust manifold & head ports, similar to what was used on Chevys or was the gasket alone sufficient?
My Buick experience has been in the nailhead era and I don't have any info on the straight eights. Thanks for any help you can provide.
-Bob
My Buick experience has been in the nailhead era and I don't have any info on the straight eights. Thanks for any help you can provide.
-Bob