F.A.S.T. Intake Manifold Gasket - Upper Intake Seal - Orange - LSXR/LSXRT Intakes - GM LS-Series HASZV20CL 1991-1991 GMC V3500

1991-1991 GMC V3500

2007-2018 GMC Sierra 1500

Specialty jam nuts have smaller outside diameters

3/4-36 Spline

F.A.S.T. Intake Manifold Gasket - Upper Intake Seal - Orange - LSXR/LSXRT Intakes - GM LS-Series HASZV20CL 1991-1991 GMC V3500See 54022 for LSX 90 and 92mm intake manifold applications. See 146004 for throttle body seal. FAST is the leading developer of electronic fuel injection systems, EFI components, intake manifolds, tuning tools for high performance and street applications. For over 10 years, FAST has been recognized as the leading developer of advanced electronic fuel injection technology. Our engineers have ignited new sparks never before seen in the EFI performance