ARP 100-7739 Wheel Stud Kit for Aftermarket Axle. full thread. thread-in. 12pt. 1/2-20 x 2.200 UHL ymm_81 It is for good reason

It is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants

and designed for use in competition engines

The exhaust valve – with its housing cast in the in-house foundry – gives the sound from the exhaust a richer and higher frequency than stock

Material: 8740 Chrome Moly

Boost/Vacuum Reference Port - Yes

ARP 100-7739 Wheel Stud Kit for Aftermarket Axle. full thread. thread-in. 12pt. 1/2-20 x 2.200 UHL ymm_81 It is for good reasonWheel Stud Kit Aftermarket Axle, full thread, thread in, 12pt, 1 2 20 x 2. 200 UHL Specifications UHL 2. 200 Thread Length 2. 000 Nose Length 0. 200 Thread Size 1 2 20