Manley 42321-1 - Small Block Chevrolet 3/8in ARP Custom Age 625+ Cap Screws

Manley 42321-1 - Small Block Chevrolet 3/8in ARP Custom Age 625+ Cap Screws

Manley Connecting Rod Bolt-3/8 ARP CUSTOM AGE 625+ 1.600 UHL ARP625+

Underhead Length: 1.500 in.

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.”

• Premium ARP-manufactured rod bolts engineered for high clamp load and reliability
• Precision thread rolling and heat treatment for maximum tensile strength
• Provides consistent preload when installed using recommended stretch method
• Ideal for high-horsepower, high-RPM street and racing applications