High-strength harmonic balancer bolt designed for a wide range of Ford V8 engines, including small-block Windsor (221, 260, 289, 302, 351W), FE series (332, 352, 360, 390, 406, 410, 427, 428), and 385-series big blocks (429, 460). Manufactured from heat-treated Grade 8 alloy steel with a black oxide finish, this bolt offers excellent durability and clamping strength. The included thick parallel-ground washer ensures consistent, even torque during installation—ideal for both factory and performance engine builds.

Details
• Fits Ford V8 engines except 351C
• Compatible with 221 / 260 / 289 / 302 / 351W
• Compatible with 332 / 352 / 360 / 390 / 406 / 410 / 427 / 428 FE
• Compatible with 429 / 460 big block
• 5/8-18 x 2 in. Grade 8 alloy steel
• Heat-treated with black oxide coating
• Thick parallel-ground washer for uniform torque tightening