ARP offer a range of High Performance fasteners which are superior to OEM hardware.  ARP Bolts are forged from aerospace alloy and heat-treated prior to thread rolling and machining.  They feature an exclusive flat, 12 point head design and a larger than standard shank diameter for increased strength.

Application:

Chev Small Block Gen III/IV 4.8L/294, 5.3L/323, 5.7L/350, 6.0L/364

Product Details:

• Thread Pitch: 11mm x 1.5
• Underhead Length: 0.800″
• Washer Included: No
• Socket Size: 1/2″ 12pt
• Fastener Finish: Black oxide
• Fastener Material: Chromoly
• Quantity: Sold as set of 6.