Stage 8 Locking Header Bolt Kit - 3/8"-16 x 1" Double Hex Head - Nickel Plated - Steel - SB Chevy - Set of 12 3550224-13- XL 1/2" wide with guides

1/2" wide with guides

Easy to install with fully-illustrated installation manual

Rocker Arm Shims

640 in Rectangular Port

Hard-tempered spring steel blades are designed for use with the ALL10770 and ALL10772 “All-In-One” Heated Tire Groovers

Stage 8 Locking Header Bolt Kit - 3/8"-16 x 1" Double Hex Head - Nickel Plated - Steel - SB Chevy - Set of 12 3550224-13- XL 1/2" wide with guidesStage 8 locking header bolts use a patented system that consists of a Grade 8 quality grooved hex head bolt, a retainer, and a snap clip. a retainer fits over the bolt head and locks the bolt against the header tube, and the snap clip holds the retainer in place. Once Stage 8 header bolts are tightened down, they won't back out, eliminating leakage and blown header gaskets from loose bolts. Made in the U. S. A. Stage 8 Locking Fasteners has provided