Exhaust Valve Stem Seals Not Included 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 C3500 equipped with 5.7L V8 Gas OHV
Exhaust Valve Stem Seals Not Included 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
