4P ARP Crank Pulley Bolt Engine Type:B-Series Reshaped geometry controls chain motion

Reshaped geometry controls chain motion at extreme RPM

It increases the seat pressure more than 20 psi on the seat to help control valve bounce and will allow safe operation up to and beyond 9000 rpm

Introducing BoostLine Connecting Rods by Wiseco Performance Products

These years include developing pistons in Formula 1

Installation Kit Includes:

4P ARP Crank Pulley Bolt Engine Type:B-Series Reshaped geometry controls chain motionReplace that old and crusty crank pulley bolt with a more durable ARP replacement. There is nothing worse than putting your hard earned money into building a masterpiece engine and having to top it off with a crummy looking oxidized OEM bolt. This is a direct replacement for the OEM bolt and can be torqued and reused as many times as you like. This bolt has a much higher clamping load with its drastically increase yield and tensile strength. ARP and 4