ARP Header Stud - 3/8 in Diameter - 1.67 in Long - Hex Nuts - Polished - Big Block Chevy - Set of 16 AS02321 Special 100:1 windings are used

Special 100:1 windings are used to provide maximum build-up of voltage

28-1/2 in Long Rod

1/8 in Diameter

A single red (87 durometer) poly bushing is included

ARP Header Stud - 3/8 in Diameter - 1.67 in Long - Hex Nuts - Polished - Big Block Chevy - Set of 16 AS02321 Special 100:1 windings are usedARPs 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