CJ's HW1423

CJ's HW1423 is an exhaust manifold bolt lock tab set for selected classic Ford Small Block engines. The set contains 8 metal tabs whose edge is folded against the head of a tightened manifold bolt.

Application / fitment

This style is catalogued for selected Ford Mustang, Falcon and Fairlane applications with 260 or 289 V8 engines, while some reproduction catalogues list 1964-1968 coverage. Compare tab spacing and shape and confirm the factory cast-iron manifold design before purchase.

• part type: exhaust manifold bolt lock tabs
• selected engines: compatible Ford 260 and 289 V8 versions
• selected vehicles: Mustang, Falcon and Fairlane
• manifold type: stock cast-iron exhaust manifold with matching fastener layout
• cross references: M3539, 9A447-1A, C2OZ-9A447-A

Install the correct flat washer first, then the locking tab, torque the bolt to specification and fold the tab edge against a bolt-head flat. Do not repeatedly unfold and reuse the tabs.

Technical information

• contents: 8 locking tabs
• function: mechanical prevention of exhaust manifold bolt loosening
• locking method: fold-over tab against bolt head
• finish: zinc plated on typical reproduction sets
• manifold bolts: not included
• sale unit: 1 set of 8 tabs