Roller Rocker Arms 1990-pontiac-firebird-esi3548487 These Builder Series tailpipes are

These Builder Series tailpipes are constructed from 2

and seal life

The chamfered ends allow for easy butt welding

For Pro-Tour cars that see highway use

Roller Rocker Arms 1990-pontiac-firebird-esi3548487 These Builder Series tailpipes arePROFORM Super Street Aluminum Roller Rockers have a beautiful anodized finish, extremely tight tolerances, and upgraded cage bearings. Fits Ford S B aluminum cylinder heads, pedestal mount '77 '94, 302HO and 351W hydraulic and roller cams. Rid your engine of internal friction with roller tipped rocker arms. The race proven full needle bearing, fulcrum, and roller tip not only unleash horsepower, they also lengthen valve train component life and reduce