Head Stud Kit by ARP

The Pro Series cylinder head bolts from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining, and are rated at a whopping 190,000 psi. The Pro Series are also available with hex and 12-point heads. All kits come complete with hardened parallel washers for even load distribution and accurate torque readings.

Features

• Fastener Style: Stud
• Thread Size: M12 x 1.5
• Undercut Stud: Yes
• Head Style: 12-point
• Fastener Material: 8740 chromoly
• Fastener Finish: Black oxide
• Washers Included: Yes

Benefits

• Heat-treated prior to thread rolling and machining
• Cold-forged to ensure molecular integrity
• Rated at a whopping 190,000 psi

Please Note: For water-cooled engines

Applications

• 1987 – 1988 Porsche 924
• 1983 – 1988 Porsche 944

What’s In The Box?

• 10 – Studs

Warranty

• Manufacturers Standard Warranty