ARP 644-3250 SAE Bolt Kit 3/8-16 x 3.250 12pt 7/16 wrenching black oxide bolts ymm_31 High-strength cylinder head stud kit

High-strength cylinder head stud kit designed for BMW S54 3

there is the option to add a hand-crafted carbon fibre diffuser

While 8740 and ARP2000 share similar characteristics – ARP2000 is capable of achieving a clamp load at 220

providing sharper throttle reaction and improved engine responsiveness in practical driving conditions

ARP 644-3250 SAE Bolt Kit 3/8-16 x 3.250 12pt 7/16 wrenching black oxide bolts ymm_31 High-strength cylinder head stud kitSpecifications Socket Size(s) 7 16 12pt UHL 3. 250 Thread Length 1. 000 Grip Length 2. 250 Thread Diameter Pitch 3 8 16 Grip Diameter 3 8 Wrenching 7 16 Head Height 0. 360 Collar Diameter 0. 700