ARP Chevrolet Small block-20 1-1/16 – Harmonic Balancer Bolt, 12-Point Black Oxide AR234-2502 Product:fits SB Chev 7/16-20 Thread x 2.470" UHL, 1-1/16" Socket Part Number: SPEF3501

Part Number: SPEF3501

Part Number: AR650-1250

These 15° LS3 Rectangle Port heads are designed to fit LS series engines with a 4

(Not ADR or DOT approved)

then anodised blackfor great looks and corrosion resistance

ARP Chevrolet Small block-20 1-1/16 – Harmonic Balancer Bolt, 12-Point Black Oxide AR234-2502 Product:fits SB Chev 7/16-20 Thread x 2.470" UHL, 1-1/16" Socket Part Number: SPEF3501Harmonic Balancer Bolt, 12 Point Black Oxidefits SB Chev 7 16 20 Thread x 2. 470" UHL, 1 1 16" Socket Brand: ARP Part Number: AR234 2502 Description: As The Crankshaft Flexes And Twists, The Balancer Absorbs Incredible Amounts Of Kinetic Energy. To Ensure That The Balancer Is Locked In Position Arp Has Developed These Ultra Strong 200,000 Psi Bolts That Let You Exert Maximum Clamping Force. Special Features Include 1 4 Thick, Wide Area Washer And An