APR Big Block Chevy & Ford 3/8″ 12pt Header Bolt Kit

ARP Big Block Chevy & Ford 3/8″ 12-Point Header Bolt Kit

Upgrade your exhaust header hardware with the ARP Big Block Chevy & Ford 3/8″ 12-Point Header Bolt Kit. Designed for securing exhaust headers to the cylinder heads, this kit provides high-strength ARP fasteners for Big Block Chevrolet and Big Block Ford engine applications.

ARP part number 100-1202 is manufactured from 8740 chrome moly and includes 16 header bolts. Each bolt features a 3/8″ thread size, 0.750″ under-head length, and a 12-point head design. ARP categorizes this kit under Cylinder Head Header. :contentReference[oaicite:0]{index=0}

Product Features:

• ARP Header Bolt Kit
• Designed for Big Block Chevrolet and Ford Applications
• 12-Point Fastener Head Design
• 8740 Chrome Moly Construction
• 3/8″ Thread Size
• 0.750″ Under-Head Length
• Includes 16 Header Bolts
• Designed for the Cylinder Head Header Location
• High-Quality ARP Fastener Construction
• Ideal for Performance, Racing and Street Engine Builds

Specifications:

ARP Engine Applications:

• Chevrolet – Generic – Big Block
• Chevrolet – Big Block – Generic
• Ford – Generic
• Ford – Big Block – Generic

Fitment Notes:

• Designed for Big Block Chevrolet and Big Block Ford header applications.
• Designed for securing exhaust headers to the cylinder heads.
• ARP lists generic Chevrolet Big Block and Ford Big Block applications rather than specific engine displacements.
• Includes 16 bolts with a 0.750″ under-head length.
• Uses a 3/8″ thread size.
• Features 12-point heads for the fasteners.
• Verify cylinder head thread size and header flange requirements before installation.