ARP 154-3603 High Performance Cylinder Head Bolt Kit for Ford 351W

Vehicle Fitment

• All Ford 351 Windsor (5.8L) small block engines -- 1969-1997

Fitment Notes

• Compatible with stock/factory 351W cylinder heads
• Compatible with Edelbrock Performer (60259) and Performer RPM (60379) heads
• Compatible with Ford GT40P cylinder heads
• Does not fit 289, 302, or 351 Cleveland/Modified engines
• For 12-point head studs, use ARP 154-4203 instead
• Use ARP Ultra-Torque or ARP moly assembly lube on bolt threads and under bolt heads during installation

Features

• 8740 chromoly steel, heat-treated for 170,000 psi tensile strength
• 15% stronger than standard Grade 8 fasteners
• Reduced wrenching hex head eliminates valvetrain removal for re-torquing
• Black oxide finish for corrosion resistance
• Hardened parallel-ground washers for even load distribution and accurate torque readings
• Provides consistent clamping force to minimize head lift and gasket failure

Specifications

• Part Number: 154-3603
• Bolt Diameter: 1/2 inch
• Head Style: Hex
• Material: 8740 Chromoly Steel
• Finish: Black Oxide
• Tensile Strength: 170,000 psi
• Undercut: No
• Quantity: Sold as a complete kit (both heads)
• Shipping Weight: 4.55 lbs
• UPC: 672036003715

Included Components

• Cylinder head bolts (20)
• Hardened parallel-ground washers (20)

Product Description

The ARP 154-3603 is a High Performance Series cylinder head bolt kit for Ford 351 Windsor small block engines with stock, Edelbrock Performer, or Edelbrock Performer RPM cylinder heads. Each bolt is manufactured from 8740 chromoly steel and heat-treated to a tensile strength of 170,000 psi, making them 15% stronger than standard Grade 8 hardware. The reduced wrenching hex head design allows cylinder heads to be re-torqued without removing the valvetrain, saving time during assembly and maintenance. The kit includes 20 bolts and 20 hardened parallel-ground washers for both cylinder heads, ensuring even load distribution and precise torque readings. Ideal for street, restoration, and high-performance 351W builds where reliable head clamping force is critical. Made in the USA by ARP.