ARP 724-3500 SAE Bolt Kit 7/16-20 x 3.500 hex SS bolts ymm_45 the system is acoustically tuned

the system is acoustically tuned to deliver a balanced and refined sound both inside and outside the vehicle

Perfect for high-performance builds

fabricated from lightweight CNC-machined aluminium to provide the best ratio between weight and performance

Fits Following Engines: 427 Chevy Big Block V8 (Mark I "Z11")

These are simply the best connecting rod bolts available

ARP 724-3500 SAE Bolt Kit 7/16-20 x 3.500 hex SS bolts ymm_45 the system is acoustically tunedSpecifications Socket Size(s) 7 16 hex UHL 3. 500 Thread Length 1. 250 Grip Length 2. 250 Thread Diameter Pitch 7 16 20 Grip Diameter 7 16 Wrenching (reduced) 7 16 Head Height 0. 400 Collar Diameter (reduced) 0. 670