ARP Header Bolt Kit 12pt Mopar 5.7/6.1L Hemi H774009M 450 lb/in Spring Rate

450 lb/in Spring Rate

8"L x 5"W x 2"H

Filler necks are machined

with some modernization and ease-of-use improvements for both backyard and professional builders

095 in Wall

ARP Header Bolt Kit 12pt Mopar 5.7/6.1L Hemi H774009M 450 lb/in Spring RateARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Header Bolt 8 mm x 1. 25