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Upgrade tired or mismatched exhaust fasteners with this ARP header and exhaust manifold bolt set, suitable for small block Chrysler, Dodge, Plymouth and Valiant applications using 5/16-18 threads. These black oxide chromoly bolts are a strong, tidy replacement when fitting extractors, headers or manifolds, offering better strength and consistency than basic hardware store bolts.

The compact 6 point hex head is practical for tight engine bay access around header pipes allowing use of an open end spanner, while the 0.75in under-head length suits many small block Mopar LA-style installations. Supplied as a set of 14, this kit is ideal for restorations, exhaust upgrades or freshening up an engine bay with quality fasteners that look right and perform reliably.

Product Features:

• ARP header and exhaust manifold bolt set
• Suits many small block Chrysler, Dodge, Plymouth and Valiant applications
• Commonly used on Mopar LA small block engines including 273, 318, 340 and 360
• 5/16-18 thread size
• 0.75in under-head bolt length
• Black oxide chromoly construction
• 6 point hex head design
• 3/8in wrench head size
• Set of 14 bolts
• Ideal for headers, extractors and exhaust manifold installation