2 results for gm header casting numbers found in 0.000 seconds

or replacement element intake manifold header primary tube diameter18 exhaust system ... intake bolts except vortec 3 1987-1989 gm trucks 4 use p/n 8004 manifold if using ... 18 see hooker or flowtech catalog for header and exhaust system applications 20 ...

exhaust intake manifold system and header muffler primary tube diameter18 ... intake bolts except vortec 3 1987-1989 gm trucks 5 use p/n 300-49 manifold if ... 18see hooker or flowtech catalog for header and exhaust system applications 19 ...