ARP SB Chevy 18 Deg, 3/8" holes 12pt undercut head stud kit (234-4721) audi-q5-2nd-gen The modular design is made

The modular design is made up of the bottom base which bolts to thecylinder heads and the top plate which bolts to the base with an O-ring to seal both components

1985 LOTUS EXCEL 2

Part Number: AU1258

Manufacturer's Part Number: ATI406491

ARP SB Chevy 18 Deg, 3/8" holes 12pt undercut head stud kit (234-4721) audi-q5-2nd-gen The modular design is madeARP SB Chevy 18?, 3 8" holes 12pt undercut head stud kit (234 4721) ARP Pro Series Cylinder Head Studs 234 4721 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