New exhaust manifold for Ford 302 cu. in. and 351 cu. in. V8 marine gas engines. This is a direct replacement for many center-rise Barr, Indmar, Mastercraft, and Marine Power exhaust manifolds, and is compatible with any of my Indmar risers. Compare your casting numbers to the cross-reference below. This manifold comes with both gaskets and manifold-to-head bolts. It will fit either side of the engine. Each purchase is for one manifold.

Riser mating bolt dimensions are 4" (101.6mm) by 2-5/8" (66.7mm) bolt center-to-center.

This part is new and high-quality cast iron construction. To determine if this is the correct replacement for you, look on your current part for casting numbers and match them to the cross reference below:

Cross Reference	Part Number
Indmar	53-2008
Osco Motors	FL994
Barr Marine	FM-1-83
Sierra Marine	18-1998-1
Aqua Power	5504
GLM Products	56250

About Sierra
Sierra provides premium-quality aftermarket replacements for over 6,000 marine parts, tools, and components. Sierra products are engineered to meet or exceed OEM standards, and stand up in harsh marine environments. Every new Sierra part comes with a limited lifetime warranty that covers the useful life of the product against any defects in workmanship and materials.

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