Auto Barn
Est. 1957
ARP

ARP Olds 403 12pt Head Stud Kit

$239.01

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ARP 12-point head stud kit for Olds 403 engines. Provides a more secure cylinder head seal than stock bolts.

Key Features

  • 12-point nuts — easier access for installation and tightening.
  • Heat-treated 8740 chromoly steel — rated to 200,000 psi tensile strength for a strong hold.
  • Improved cylinder head sealing — helps prevent leaks under pressure.
  • Direct replacement for stock head bolts — fits Oldsmobile 403 engines.
  • Includes studs, 12-point nuts, and washers for a complete set.
This kit is designed for 1977-1980 Oldsmobile 403 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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ARP Olds 403 12pt Head Stud Kit

$239.01