ARP 135-5201 Main Bolt Kit for CHEVROLET Big Block 4-bolt ymm_74 850 x (ID x OD

850 x (ID x OD x Thickness)

Comanche 1987-1992

000˝ Grip Length n/a˝ Thread Diameter-Pitch 5/16-18 Grip Diameter 5/16˝ Wrenching 3/8˝ Head Height 0

Further visual enhancements can be achieved with the addition of the optional hand-made carbon-fibre diffuser and mirror caps

There are three exhaust valves

ARP 135-5201 Main Bolt Kit for CHEVROLET Big Block 4-bolt ymm_74 850 x (ID x ODSpecifications Socket Size(s) 9 16 hex Fastener Style: Bolt PackageType: Box Finish: Black Material: 8740 Chrome Moly Quantity: Kit Kit Instructions Fits Following Engines: 454 CID Chevy Big Block V8 With 4 Bolt Main Caps W O Merlin II & III Iron Blocks Fits Following Engines: 427 CID Chevy Big Block V8 With 4 Bolt Main Caps W O Merlin II & III Iron Blocks Fits Following Engines: 396 CID Chevy Big Block V8 With 4 Bolt Main Caps W O Merlin II & III