1-3/4 (in) Inside Diameter Exhaust Pipe Packing not Included 2-17/32 (in) Inside Diameter Exhaust Pipe Packing not Included Head Bolts Not Included Head Bolt Replacement Recommended Premium Valve Stem Seals Included
1981 GMC Caballero equipped with 5.0L V8 Gas OHV
1-3/4 (in) Inside Diameter Exhaust Pipe Packing not Included 2-17/32 (in) Inside Diameter Exhaust Pipe Packing not Included Head Bolts Not Included Head Bolt Replacement Recommended Premium Valve Stem Seals Included
1st Design with 0.605 (in) Valve Guide Outside Diameter Intake Manifold Gasket(s) Not Included Premium Valve Stem Seals Included
1981 GMC Caballero equipped with 3.8L V6 Gas OHV
1st Design with 0.605 (in) Valve Guide Outside Diameter Intake Manifold Gasket(s) Not Included Premium Valve Stem Seals Included