This ARP Big Block Chevy harmonic balancer bolt uses a 1/2-20 in thread, 1.550 in length, and a 13/16 in 12-point head, machined from chromoly steel and finished in black oxide with an included washer.
Specifications:
- Thread: 1/2-20 in
- Length: 1.550 in
- Head: 13/16 in 12-Point
- Washer Included: Yes
- Material: Chromoly
- Finish: Black Oxide
- Pack: Each
Applications:
- Big Block Chevy
FAQ
What is the thread size on this balancer bolt?
This bolt has a 1/2-20 in thread and is 1.550 in long.
What size head does this bolt have?
This bolt has a 13/16 in 12-point head.
Does this bolt include a washer?
Yes, a washer is included with this bolt.
How is this bolt sold?
This bolt is sold individually (each).

