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Manley Performance

Manley 3/8 ARP 625+ Bolt (Set of 4)

Manufacturer part number: 42320-4

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CODE: MAN42320-4
$203.41 Available to order Sold out
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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
  • Provides consistent preload when installed using recommended stretch method
  • Precision thread rolling and heat treatment for maximum tensile strength
  • Ideal for high-horsepower, high-RPM street and racing applications