Lamspeed Racing - ARP "Custom Age 625+" Head Stud Kit - Nissan SR20DET


Variant SKU: LSR-ARPCASR20
$1,078.00
$1,078.00
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Lamspeed Racing - ARP "Custom Age 625+" Head Stud Kit - Nissan SR20DET

Details:

Lamspeed Racing's customised ARP Custom Age 625+ Head Stud kit for the Nissan SR20DET engine utilises ARP's newly formulated super-alloy - Custom Age 625+, and features Dog Point bottoms.

Dog Point Feature

A Dog Point is a straight pointed section, reduced in diameter slightly below the root diameter of the thread. It usually extends in length about two-thirds the diameter of the thread. This aids component assembly, seats studs in the block, and preloads the fastener for accurate, repeatable torque sequencing. 

Dog Point Stud

Custom Age 625 Plus®

This newly formulated super-alloy demonstrates superior fatigue cycle life, tensile strength and toughness – with complete resistance to atmospheric corrosion and oxidation. ARP is the first to develop manufacturing and testing processes for fasteners with Custom Age 625+. Best of all it is less expensive and expected to soon replace MP-35 as the material of choice in the high strength, super-alloy field. Typical tensile strength is 260,000-280,000 psi.

Includes:

  • a set of ten Custom Age 625+® head studs with Dog Points,
  • ten parallel ground washers,
  • ten 8740 chrome moly steel 12pt nuts, and
  • a 1/2 oz. pack of ARP Ultra-Torque fastener assembly lubricant.

All Custom Age 625+® studs are centerless ground, heat treated prior to thread rolling and machining, and are nominally rated at 270,000 psi.

These fasteners deliver a 55% increase in tensile strength over the OEM Torque to Yield (TTY) head bolts.

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