Description
The harmonic balancer bolt is a critical fastener that endures extreme rotational forces and vibration in high-performance engines—factory hardware often falls short under sustained boost or aggressive rpm cycling. ARP’s chromoly construction and precise engineering eliminate thread stripping and fastener failure, ensuring reliable crankshaft stability whether you’re running stock or modified power. This is a straightforward bolt-on upgrade that pays dividends in engine longevity and peace of mind.
- Thread: 5/8-18 in
- Length: 2.050 in
- Head Style: 5/8 in 12-point
- Material: Chromoly
- Finish: Black oxide
- Fitment: Big/Small Block Ford
- Quantity: Each
- MPN: 150-2501
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