For mechanical secondary 1991-pontiac-firebird-esi6483971 1hr at 482 degree F

1hr at 482 degree F (250 degree C)

Reinforced glass filled polypropylene blade and plastic housing for minimized weight

These valve covers are available in 5 different styles

the SB054 is cold formed to better resist torsional fatigue and retain its "memory" far longer than the hot-formed bars used by many competitors

7L HEMI engine features stainless steel construction with larger 2

For mechanical secondary 1991-pontiac-firebird-esi6483971 1hr at 482 degree FMech Link DP Standard 40% progressive ratio found in most carburetors (gold in color). Used on mechanical secondary carburetors only. Includes required cotter pin for installation.