ARP 430-2001 Intake Manifold Bolt Kit for Chevrolet LS1. LS4. LS6. 4.8L-RL4. 5.3L-LM7. 6.0L-LQ4. 4.480˝ UHL. ARP Stainless. hex ymm_49 Fits Following Engines: Boss 351

Fits Following Engines: Boss 351 CID Ford Small Block V8

Chevy II 1966-1967

1/2 square drive internal

delivers a material with superior fatigue characteristics and typically tensile strength in the 260

ARP 430-2001 Intake Manifold Bolt Kit for Chevrolet LS1. LS4. LS6. 4.8L-RL4. 5.3L-LM7. 6.0L-LQ4. 4.480˝ UHL. ARP Stainless. hex ymm_49 Fits Following Engines: Boss 351Now you can use premium quality ARP stainless steel or chrome moly fasteners to install most anything on a car, boat or trailer. The specially alloyed ARP 300 stainless steel and heat treated 8740 chrome moly bolts (black oxide finish) are nominally rated at 180, 000 psi tensile strength to provide a substantial extra margin of safety over Grade 8 hardware. Whats more, you cant beat the gorgeous looks of ARPs specially polished stainless steel