ARP Header Stud - 3/8 in Diameter - 1.67 in Long - 12 Point Nuts - Polished - Big Block Chevy - Set of 16 Spark Plug Gap Tool Introducing a tight-fit bracket system

Introducing a tight-fit bracket system for the big block 1964-68 Chevelle

Hyundai Elantra 2011-16

1987-1987 GMC Caballero

1/2 (to find your vehicle

ARP Header Stud - 3/8 in Diameter - 1.67 in Long - 12 Point Nuts - Polished - Big Block Chevy - Set of 16 Spark Plug Gap Tool Introducing a tight-fit bracket systemARPs 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 Stud 3 8 in Diameter