Head Bolt Set, 12-Point Pro Series Category_Reference Distribution Blocks such as boost gauges and

such as boost gauges and blow-off valves

Suits -3AN 200 Series

14mm (9/16") to -4AN Male

RB20DE engines found in R32 & R33 Skylines

Head Bolt Set, 12-Point Pro Series Category_Reference Distribution Blocks such as boost gauges andfits GM LS Series With All Same Length Bolts (2004 On) Part Number : AR134 3610 PROFESSIONAL SERIES All Pro Series bolts are cold forged to ensure molecular integrity,heat treated prior to thread rolling and machining, and arerated nominally at 200,000 psi. ARP Pro Series head bolt kits are applicationspecific designed for usewith typically competition only components. These fasteners deliver superior strength and meet the ARP ZERO defect ZERO failure