This ARP header bolt kit includes sixteen hex head bolts sized 3/8-16 thread by .750 in under-head length, machined from chromoly steel and finished in black oxide for corrosion resistance. It's a universal-fit design.
Specifications:
- Type: Header Bolt Kit
- Thread: 3/8-16
- Under-Head Length: 0.75 in
- Head Style: Hex
- Material: Chromoly Steel
- Finish: Black Oxide
- Quantity: Set of 16
- Part Number: 100-1108
Applications:
- Universal
FAQ
What does "universal" mean for this header bolt kit?
It's not designed for one specific engine platform — the thread and length work across a range of header installations rather than a single named application.
What material are these bolts made from?
They're machined from chromoly steel with a black oxide finish for corrosion resistance.
How many bolts are included?
This kit includes a set of 16 bolts.
What head style do these bolts use?
They use a hex head design.

