ARP Chevrolet, Small Block Brodix -18c,-18x with 3/8” step stud – SB Chevy 18ºC and 18ºX Brodix head w/3/8 s (234-4727) Yaris/Yaris L 3rd Gen Manufacturer's Part Number: 5M1985HX-STD

Manufacturer's Part Number: 5M1985HX-STD

Stealth Ride Part Number: EAEAG871200

pulley is 20 percent underdrive

UPC: 800157023705

ARP Chevrolet, Small Block Brodix -18c,-18x with 3/8” step stud – SB Chevy 18ºC and 18ºX Brodix head w/3/8 s (234-4727) Yaris/Yaris L 3rd Gen Manufacturer's Part Number: 5M1985HX-STDARP SB Chevy 18 C & 18 X Brodix head w 3 8 s (234 4727) ARP Pro Series Cylinder Head Bolt Kits 234 4727 The Pro Series cylinder head bolts from ARP are cold forged to ensure molecular integrity. They are heat treated prior to thread rolling and machining, and are rated at a whopping 190,000 psi. The Pro Series are also available with hex and 12 point heads. All kits come complete with hardened parallel washers for even load distribution and accurate