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Est. 1957
ARP

ARP Trick Flow Prostock 12pt head stud kit

$358.43

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ARP Trick Flow Prostock 12pt head stud kit. Forged from 8740 chromoly steel for strength.

Key Features

  • ARP 255-4305 head stud kit for Trick Flow Prostock applications.
  • Constructed from heat-treated 8740 chromoly steel for improved tensile strength.
  • Features 12-point nuts for a more secure and even clamping force.
  • Thread-rolled studs offer better fatigue life and easier installation.
  • Includes ARP Ultra-Torque fastener lubricant for proper installation.
  • Designed to handle increased cylinder pressures in performance engines.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

Forged from 8740 chromoly steel, these ARP Trick Flow Prostock head studs are built to handle the increased cylinder pressures common in performance engine builds. The 12-point nuts offer a more secure and even clamping force compared to standard hex nuts, which is crucial for keeping your cylinder heads sealed under stress.

ARP is well-known for making strong, reliable engine components, and this kit is no exception. The studs are heat-treated and thread-rolled for improved fatigue life and easier installation, ensuring they thread in smoothly without damaging your block's threads. This kit is a solid choice for anyone rebuilding or upgrading their engine's top end, providing the clamping force needed to prevent head gasket leaks.

When installing these studs, it's important to follow ARP's recommended torque-to-yield procedure and use their Ultra-Torque fastener lubricant for best results. This ensures the studs stretch properly to achieve the correct clamping load without over-stressing the material.

Specifications

Brand
ARP
Manufacturer Part #
255-4305
UPC
672036011536

Frequently Asked Questions

ARP Trick Flow Prostock 12pt head stud kit

$358.43