Compact, high-strength header bolts designed specifically for tight-clearance header flanges where standard exhaust bolts won’t fit. These 3/8-16 x 3/4" bolts feature a small hex head with an integrated flange for better grip and load distribution. Finished in black oxide to resist corrosion, they’re built from high-strength steel to maintain proper clamp load under heat and vibration. Ideal for AMC, Chevrolet small block, Chrysler big block (except Hemi), Pontiac, and Oldsmobile V8 applications.

• Thread Size: 3/8-16
• Length: 3/4"
• Material: High-strength steel
• Finish: Black oxide
• Head Style: Compact hex head with flange (7/16" wrench size)
• Clearance: Designed for tight header flange areas
• Quantity: Set of 12
• Fitment:
– AMC 290–401
– Chevrolet Small Block 262–400
– Chrysler 383–440 (except Hemi)
– Pontiac 326–455
– Oldsmobile 330–455