I have acquired 2 exhaust manifolds that are supposed to be correct 1966 BB Chevelle manifolds. Can someone verify that casting #3884503 and #3884504 are correct for a 1966 Chevelle BB? Thanks !!

3884504 shows it was used 66-67 396/427 on the 325,385,390hp engines, could not find 3884503. I would think from the years shown, it was used late model 66.


Rocky

My 'Chevrolet by the Numbers' book shows 3884504 as a 66 & 67 passenger (full size car, not Chevelle) r.h. manifold. Correct numbers for a 66 Chevelle should be 3868874 (r.h.) and 3883999 (l.h.). And as Rocky says, I couldn't find anything even close to 3884503.