i have two sets of manifolds.
i'm sure they are from a 235 or the gmc equivalant.
the intake casting numbers are the same.
the casting numbers on the exhausts are different but the measurements are the same.
i can't find any of the casting numbers in my hollanders.

does it matter?

rolf

Last edited by rgie; 06/04/2013 8:17 AM.

1963 c10