[dozer7120]

I'm putting a Pontiac 400 in place of the 301. I'm looking for specific for gbody headers! All I can find are firebird or full size car. I don't want to be beating tubes and grinding on car to hopefully make them fit. Once you start beating on them they don't take them back. Any ideas? I can find bbb, SBC and LS but no Pontiac motors. Anyone have any tips? I'll buy used if in good shape. Thanks

[Ken MacNicol]

The man who started MadDog headers ( now retired) makes them . I have a set from him on my Grand Prix.

[grandam1979]

I had custom made headers on mine and as said maddog. I always wanted to try a set of longbranch manifolds on my g/a never did but I think they would go right on then use the filter adapter.

[newmexguy]

Have a fairly old "Hooker" catalog. 1997. They didn't list a Pontiac V-8 specific header in their catalog for the metric A/G chassis, meaning '78 to '87. Only for Chevy engine swaps. Part #2451 in Competition series. They did list what appears to be a Pontiac header, Part #4107, for '73-'74 X body Ventura II. Maybe that might be the closest to what you looking for.