ARP SB Chevy Cylinder Head Bolt Kit, High Performance, Hex Head, Chevy, LS1/LS6 MGMW Integrated speaker and boom mic

Integrated speaker and boom mic pockets

Support tubes included

Increased Oil Capacity:

Big GM inlet thread is 7/16"-20

ARP SB Chevy Cylinder Head Bolt Kit, High Performance, Hex Head, Chevy, LS1/LS6 MGMW Integrated speaker and boom micARP High Performance series head bolt kits are tough! Rated at 170 000 psi 15 percent stronger than Grade 8 fasteners. Available with hex heads or reduced wrenching 12 point heads that eliminate the need for valvetrain removal when re torquing cylinder heads. ARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM