ARP 1/2-20 12 Point Nuts (10) GP230320 600'' exhaust with AFR's hardened

600'' exhaust with AFR's hardened ductile iron interlocking seats

These pumps were used on most Chevrolet applications with short and long water pumps until the early 1980's

and the TF20 is certified compliant to the SFI 3

1969-1972 International M800 Post Office

ARP 1/2-20 12 Point Nuts (10) GP230320 600'' exhaust with AFR's hardenedARPs 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: Nut 1 2 20 in Thread 5 8 in