ARP Header Stud Kit - 12 Point 3/8 x 1.500 OAL (16) 103 590 in ID Pilot Bushings

590 in ID Pilot Bushings

The unique three-piece construction provides for fast

Temperature / Timer Controls

3 :1 AFR 0-5V Output Methanol values from 4

ARP Header Stud Kit - 12 Point 3/8 x 1.500 OAL (16) 103 590 in ID Pilot BushingsARP header stud kits facilitate the installation of your headers. Rated at 170 000 psi they're stronger than stock and will last under even the most severe conditions. Each kit includes the specific number of parts required for the desired application plus premium quality washers and either hex or 12 point nuts. ARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline.