ARP BB Chevy 1/2" w/alum block head stud kit 135-4006 5 Series 6th Gen AWD 70mm Brand Supertech Valve Spring

70mm Brand Supertech Valve Spring Type Single Seat Pressure 54lbs @ 34

Manufacturer's Part Number: 12147040

Kevlar SleeveOne Size

Manufacturer's Part Number: 401-8401

ARP BB Chevy 1/2" w/alum block head stud kit 135-4006 5 Series 6th Gen AWD 70mm Brand Supertech Valve SpringARP BB Chevy 1 2" w alum block head stud kit (135 4006) ARP Pro Series Cylinder Head Studs 135 4006 ARP Pro Series cylinder head studs are cold forged to ensure molecular integrity. They're heat treated prior to thread rolling and machining. ARP Pro Series kits are also available with 12 point nuts, and all studs come complete with hardened parallel washers for an even load distribution and accurate torque readings. With hundreds of models ready to