Upgrade to 5150's Custom Age 625+ Head Stud Kit Built by ARP!
Upgrade to 5150's Custom Age 625+ Head Stud Kit Built by ARP!
Upgrade your S55 Engine with this all Inclusive 1000hp Capable Kit from 5150!
Pair Your High Performance Valves with a Set of Upgraded Springs and Retainers!
Upgrade Your Factory Intake and Exhaust Valves
The perfect choice for street or sport use.
Two required per valve, necessary for use with certain supertech valves
Quality retainers from Supertech
Quality retainers from Supertech
Quality retainers from Supertech
Two required per valve, necessary for use with certain supertech valves
Quality retainers from Supertech