Automotive Racing Products (ARP) started in 1968, in Southern California. Their product line includes everything from engine and driveline fasteners for OEM replacement parts to exotic specialty hardware for the Formula 1, Indycar, NASCAR, NHRA Drag Racing, and Marine Applications. They produce a number of specialty products like cylinder head fastener kits, connecting rod bolts, exhaust manifold/header fastener kits, oil pan fastener kits, piston ring compressors, and more.

Additional Information:

Stud - 1/2-13 and 1/2-20 in Thread - 4.400 in Long - Broached - Chromoly - Black Oxide - Universal - Each

Fitment Notes:

Please do your own research to confirm this part fits your vehicle. If you are unsure whether this part will fit your vehicle, please contact us before purchasing.

Manufacturer's Part Number	AR4.400-1LB
CARB Approved	Yes