Chevrolet Performance Hex Head Cylinder Head Bolt Kit Steel Natural Black Oxide - GM LS-Series 1997-2003 Head Sock Easily replaces the stock relief

Easily replaces the stock relief valve and is a must for high performance engines

High Torque

Strong hydraulic wing cylinders have an aluminum body which houses a steel piston and pushrod assembly

TIG-welded valve covers with a thick billet rail are available with or without breather holes for custom modification such as vacuum pump fittings

Magnetic Mount

Chevrolet Performance Hex Head Cylinder Head Bolt Kit Steel Natural Black Oxide - GM LS-Series 1997-2003 Head Sock Easily replaces the stock reliefProduct Description: Cylinder Head Bolt Kit Hex Head Steel Natural GM LS Series 1997 2003 Chevrolet Performance has a wide selection of performance upgrade parts specifically for GM vehicles, as well as crate engines, you can add proven performance to stock vehicles. Looking to personalize your vehicle? Chevrolet Performance is the place. Inside youll discover a complete portfolio of Chevrolet, Buick, GMC and Cadillac Accessories to enhance the