Mopar 440 Big Block Exhaust Manifold 1966-1978 Hooker 5903HKR

Hooker exhaust manifold / header for the Mopar 440 Big Block (1966-1978). Listed for one application: Mopar 440 Big Block engines, 1966-1978, in Dodge, Plymouth, Chrysler applications. Confirm your engine code and year against this listing before ordering.

What it does

The manifold collects exhaust from the ports and hands it to the turbo or the exhaust. Factory cast manifolds crack and warp with heat cycles, which leaks drive pressure and makes the tick you hear cold. A new manifold seals the ports again; a tubular header or turbo manifold trades some durability for flow and a faster spool.

Fits

• Dodge vehicles with the Mopar 440 Big Block engine, 1966-1978
• Plymouth vehicles with the Mopar 440 Big Block engine, 1966-1978
• Chrysler vehicles with the Mopar 440 Big Block engine, 1966-1978

Fixes

• an exhaust tick when cold that quietens as it warms
• a cracked or warped factory manifold
• broken manifold bolts and leaking gaskets
• a turbo build needing a proper manifold

What's included

• the manifold or header as listed; gaskets and hardware where stated

Specifications

• Brand: Hooker
• Part number: 5903HKR
• Shipping weight: 26.0 lb
• Condition: new
• Product type: Exhaust Manifold

Cross-reference

Replaces or interchanges with Hooker 5903HKR for the Mopar 440 Big Block. Check the part number stamped on your original before ordering.

Free shipping on orders of $70 or more; everything else ships with calculated shipping at the part's real weight. Questions on fitment? Ask a tech before you buy.