Description
ARP rocker arm nuts are engineered to maintain consistent clamp load and prevent fastener loosening under the extreme vibration and thermal cycling of high-performance engines. Using chromoly construction with a black oxide finish, these nuts deliver the reliability demanded by professional racers and serious engine builders who can’t afford valve train failures. This 16-piece kit covers a full set of rocker arms on most V8 and big-block applications.
- 7/16-20 thread
- 0.550″ shank diameter
- 1.200″ length
- Chromoly material
- Black oxide finish
- Fits aluminum rockers
- Set of 16 pieces
- MPN 300-8245
