Outfront 12mm 625+ Pro Series Headstud Kit for EZ30R-EZ36 EJ25 Shortblocks 3D CAD designed and tested

3D CAD designed and tested for extreme performance

can be configured to KPA

49lbs per min

Torque Capacity: Up to 300% increase at the wheels

all OEM patterns

Outfront 12mm 625+ Pro Series Headstud Kit for EZ30R-EZ36 EJ25 Shortblocks 3D CAD designed and testedIntroducing the new custom head stud option for the EZ30R, EZ30D and EZ36 6 cylinder engines. Special design features unique block side seating of the stud (12mm thread) for better thread engagement, polished ARP 625+ material, Allen cap for easy installation, Outfront ARP name stamped on the head. Larger diameter than the stock head bolts, uses 7 16NF thread at head. Reduced shank. Machining to block Required for installation (No machining required