ARP Stainless Steel Bolts 5/16 in.-24 RH Thread 1.500 in. UHL # 712-1500 Rate_20 Return Attachment:Female threads

Return Attachment:Female threads

The step in the rod changes the effective jet area between high and low manifold vacuum conditions

Hooker Headers are the best single improvement you can make

and they're offered in your choice of tumble polish or hard gray anodized finishes

750in # 616-1750

ARP Stainless Steel Bolts 5/16 in.-24 RH Thread 1.500 in. UHL # 712-1500 Rate_20 Return Attachment:Female threadsARP Stainless Steel Bolts 5 16 in. 24 RH Thread 1. 500 in. UHL # 712 1500 Bolts, 12 Point Head, Stainless 300, Polished, 5 16 in. 24 RH Thread, 1. 500 in. UHL, Set of 5 Fastener Size: 5 16 24 in. RH Underhead Length (in): 1. 500 in. Fastener Head Style: 12 point Fastener Material: Stainless steel Fastener Finish: Polished Fastener Grade: ARP Stainless 300 Fastener Yield Strength (psi): 180,000 psi Wrench Diameter: 3 8 in. Washers Included: Yes