Cylinder Head Bolt Kit for Chevrolet 18° hi-port with undercut bolts

Cylinder Head Bolt Kit for Chevrolet 18° hi-port with undercut boltsAll Pro Series bolts are cold forged to ensure molecular integrity, heat treated prior to thread rolling and machining, and meet theARP ZERO defect ZERO failure quality standard. ARP Pro Series head bolt kits are application specific and designed to deliversuperior strength typically associated with competition engines. Pro Series kits are available in standard (8740) 190,000 psi tensilestrength material and proprietary (ARP2000) 220,000 psi tensile

12-point head design and larger than stock shank diameter for increased strength andimproved flywheel register

You will also note that ARP offers specially undercut studs forseveral engines

in length or more

PROFESSIONAL SERIESAll Pro Series bolts are cold-forged to ensure molecular integrity

the fastener experts at ARP have developed the Pro Series ring gear bolts

which is substantially stronger than the OEM bolts

Made from ARP2000 and heat-treated to 220

Kits come complete with flat washers

We highly recommend using a stretch gauge when installingrod bolts and other fasteners where it is possible to measure thelength of the bolt after tightening

000 psi range

If you have ever installed a rocker stud into a cylinder head and watched it wobble as it screwed in – you knew from the beginning that the rocker geometry was going to be inconsistent all over the place

When the bolt hasstretched the specified amount