Join Date: Sep 1999
Location: Hot Springs, AR
Thanked 5 Times in 5 Posts
Re: In need of exhaust manifold for M38
I found this picture of an L-head. The exhaust manifold looks the same as the F-head, doesn't it? If so, that would explain why the F-head manifold wasn't flat but curved upward between the outer and inner ports.
Here's an F-head.