Has any one checked the exhaust port alignment with the ports. I made a 1 piece gasket using the cylinder head for the gasket template. When the two manifolds were bolted together there was 3/16 inch misalignment. I had to shim between the two manifolds for the exhaust ports to line up. Food for thought.

Joe

Last edited by Phak1; 08/27/2026 12:18 PM. Reason: Typos

just retired and finally making headway on my project truck. 1940 GMC AC152.