Manley Engine Connecting Rod Bolt - 42391-1

Important excerpt from the ARP catalog regarding proper fastener installation: “The importance of tightening fasteners to their required preload cannot be emphasized enough. If a fastener is not preload cannot be emphasized enough. If a fastener is not tightened properly, the fastener will not apply the required preload on the application it is being used for and may become susceptible to failure. Conversely, if a fastener is over tightened and stretched too much, it becomes susceptible to failure by exceeding it’s maximum yield point.”

Note: BOLT-7/16 2000 1.850 ARP2000 Mat'l Stretch .0069" - .0073" 100-110 w/oil 85-95 w/lube