This ARP header bolt kit is machined from stainless steel and polished, designed for Big Block Chevy engines. It features a 12-point head, 3/8-16 in thread, and 1.00 in UHL, and comes as a set of 16.
Specifications:
- Head Style: 12-Point
- Thread Size: 3/8-16 in
- Length (UHL): 1.00 in
- Material: Stainless
- Finish: Polished
- Quantity: Set of 16
Applications:
- Big Block Chevy
FAQ
What is the ARP 400-1212 header bolt kit for?
It is a header bolt kit designed for Big Block Chevy engines.
What head style do the bolts have?
They have a 12-point head.
What size are the bolts?
They use a 3/8-16 in thread with a 1.00 in UHL (under-head length).
What material and finish do the bolts have?
They are stainless steel with a polished finish, part #400-1212.

