Ensure a secure and precise fit for your GM LS engine valley plate with this 12-point head bolt kit. Each bolt measures 14 cm in length, providing optimal reach and fastening strength. Improve engine reliability with hardware designed for exacting standards.

Secure your LS Chevy intake valley cover with ARP's precision-engineered black hex bolts, designed to provide reliable fastening under high-stress engine conditions. Measuring 17.80 cm in length, these bolts ensure a perfect fit and enhanced durability. Discover why these bolts are essential for maintaining engine integrity.

Ensure secure and reliable sealing of your LS1, LS2, or LS3 engine valley cover with precision-engineered 12-point bolts. Measuring 17.80 cm in length, these ARP fasteners provide consistent clamping force to prevent leaks and maintain engine integrity. Discover how these bolts enhance engine performance and durability.