Mr. Gasket Ultra Seal Cylinder Head Bolts 20-PRY-NB-4XS Vehicle Applications: GMC: Sierra 3500

Vehicle Applications: GMC: Sierra 3500 Classic 07 - 07 6 L Engine

Lowers your 1967-1972 GM A-body 1-inch

Y-Pipe Included

16 AN Male O-Ring to 12 AN Male

Easy access canvas cover features a full-length zipper

Mr. Gasket Ultra Seal Cylinder Head Bolts 20-PRY-NB-4XS Vehicle Applications: GMC: Sierra 3500Mr. Gasket Ultra Seal Cylinder Head Bolts 941G Longer Than Stock 16 Bolts For One Head Cylinder Head Bolts Longer Than Stock High Quality Grade 8 Alloy Increase Torque Settings Higher Clamp Loads On Gasket Applications include: Bel Air, Biscayne, Blazer, Blazer K5, Brookwood, C10 Pickup, C10 Suburban, C15 Pickup, C15 Suburban, C15 C1500 Pickup, C15 C1500 Suburban, C1500 Pickup, C1500 Suburban, C20 Pickup, C20 Suburban, C25 Pickup, C25 Suburban, C25