A couple years ago i bought a exhaust manifold at a swap meet that i thought was a 57 ford,but when i compared it to a 57 you can see the difference.  The number on it is  ECV-9431-A. i am thinking maybe Lincoln but dont have a manual with Lincoln part numbers.anyone out there have any idea what it is... Carl   Ohio 

The bolt holes on a 292/312 engine are straight across. The Lincoln engines, at least the ones in the big trucks, had staggered bolt holes. Hope this helps.

54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ

Paul   The manifold has the staggered holes so must be a lincoln,now have to find someone that needs one     Thanks for the info.   Carl