ARP 135-3609 Cylinder Head Bolts Kit for Mark V IV Chevrolet Big Block w/ Brodix HeadsFastener Style: Bolt Undercut Stud: No Head Style: Hex Fastener Material: Chromoly Fastener Finish: Black oxide Washers Included: Yes Cut to Fit: No These ARP High Performance series head bolt kits are tough! They are rated at 170,000 psi 15 percent stronger than Grade 8 fasteners. They come available with hex heads or reduced wrenching 12 point heads that eliminate the need for valvetrain removal when re torquing cylinder heads.

UPC:672036002473

000 rpm if you do not have the correct springs

0L cathedral port cylinder head-equipped truck engines and cathedral port LS1

736" Bore   5/8" tube

Oldsmobile V8 260-455

Main Bolt Style: 2-bolt

040 Gasket Set - Full C350LM-24

875” Diameter│135g Weight│2

Patented Design - U

High Performance

FAST™ offers engine-specific wiring harnesses with clearly labeled connections

Effective Stud Length (in):2