108 FN387 1967-69 D-Port RA Exhaust Manifolds (RE) . $459.00/pr. FN387 is a ... of the original long branch manifolds used on Firebirds with ram air engines. This ... headertype exhaust is an excellent way to improve the ... and appearance of your 67-69 Firebird V-8 with Dport heads. These manifolds ... are designed to be used with two FN400 flanges and an FN407 oil ... adapter. FN390 1970-81 D-Port RA and HO Exhaust Manifolds (RE ... 379.00/pr. These reproduction manifolds are correct for 1970 Ram Air III ... Firebirds and are a great way to improve exhaust ... flow on any 1970-81 Firebird with a Pontiac V-8 (exc. Turbo) and ... Dport heads. These manifolds are designed to use one FN401L and one ... adapter. Note 1: Some cylinder heads used in the 1970s do not have exhaust ...
109 FN393 FN392K 1967-69 D-Port RA Exhaust Manifold Installation Kit (RP ... grade 8 high tensile bolts. Fits FN387 manifolds. FN392M 1967-69 Standard Exhaust ... Manifold Installation Kit (RP ... note for FN393M. FN393 1970-81 D-Port Exhaust Manifold Installation Kit (RP ... Same components as FN392K. Fits FN390 manifolds. FN393M 1970-81 Standard Exhaust ... Manifold Installation Kit w/Pontiac V-8 (exc. ... combinations. FN394 1970-74 Round-Port Exhaust Manifold Installation Kit (3 Mounting ... Same components as FN392K. Fits FN391 manifolds. FN394A 1968-74 Round-Port Exhaust ... Manifold Installation Kit (5 Mounting Bolts) (RP ... Same components as FN392K. Fits FN391A manifolds. FN392 FN392A FN392 Exhaust Manifold ... is an excellent dressing for original manifolds as well as reproductions. Fortified ...