Mr. Gasket 5801G Ultra Seal Head Gasket Features: Excellent Resilience High Temperature Endurance Will Not Creep/Cold-Flow Will Not Get Brittle Resists Corrosion Eliminates Gasket Sealer Compatible w/High Octane Fuel Compatible With Exotic Fuel Height: 28.50 Width: 9.40 Length: 0.13 Weight: 0.50 lbs Fitment: 1980/GMC/K3500/Sierra Grande Standard Cab Pickup 2-Door/6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated::N/ A^^1980/GMC/K3500/Sierra Grande Crew Cab Pickup 4-Door/6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated::N/ A^^1980/GMC/K3500/Sierra Grande Cab & Chassis 4-Door/6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated::N/ A^^1980/GMC/K3500/Sierra Grande Cab & Chassis 2-Door/6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated::N/ A^^1980/GMC/K3500/Sierra Classic Standard Cab Pickup 2-Door/6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated::N/ A^^1...