Product Details

• Material: Standard Steel
• Grade Rating: Grade 8
• Thread Size: 3/8-24
• Exterior Finish: Painted
• Manufacturer Grade: Grade 8
• Material: ‎Standard Steel
• Grade Rating: ‎Grade 8
• Thread Size: ‎3/8-24
• Exterior Finish: ‎Painted
• Manufacturer Grade: ‎Grade 8
• Head Style: ‎12-point
• Color: ‎Black
• Fastener Type: ‎Flange Bolt
• Brand: ‎ARP
• Thread Type: ‎Unc
• Thread Style: ‎Right Hand
• Item Hardness: ‎Grade 8
• Head Type: ‎Flange
• Thread Class: ‎2A
• Maximum Shear Strength: ‎580 MPa (85 ksi)
• UPC: ‎672036003739
• Manufacturer: ‎ARP
• Model: ‎ARP 154-3701
• Item Weight: ‎2 pounds
• Country of Origin: ‎USA
• Item model number: ‎154-3701
• Is Discontinued By Manufacturer: ‎No
• Manufacturer Part Number: ‎1543701
• OEM Part Number: ‎154-3701
• Date First Available: November 23, 2005

• High Performance Series cylinder head bolts are a premium replacement for OEM fasteners
• Bolts are 180,000 psi, which is 15% stronger than Grade 8 hardware
• Wide area flanged head eliminates the need for valve train removal to facilitate cylinder head retorquing
• Features compact 12-point style heads
• Comes complete with hardened parallel-ground washers

To maintain a reputation for “zero defects”, ensure optimum quality control,
and produce fasteners of exceptionally high quality, ARP controls all aspects
of the manufacturing process, performing all operations in-house where they
can be closely monitored. ARP takes extraordinary steps to produce the very
finest products of their kind on the market today. These High Performance
series cylinder head bolts are a premium replacement for OEM fasteners. They
feature a compact 12-point and wide area flanged head that eliminates the need
for valve train removal to facilitate cylinder head retorquing. The bolts are
180,000 psi, which is 15% stronger than Grade 8 hardware, and they come
complete with hardened parallel-ground washers. This kit is designed for
select Ford small block applications (289-302 standard, Edelbrock head 60259,
60379).