New exhaust manifold conversion kit for OMC Ford 302/351 marine gas engines. Replaces the old end rise (log style) manifolds and risers, part numbers 913682, 913683, 909218, 982680, or 909863, with new and more efficient center-rise manifolds and risers. Includes 3.5" exhaust hose to mate up to your original Y-pipe.

Note

• This kit does not replace the older "Banana" style OMC Ford manifolds.
• These manifolds utilize one bolt per port, instead of two like original OMC manifolds. This is normal and will not cause any problems.

Shipping Note: Due to the weight of these parts, this kit ships in multiple boxes. When you receive your tracking number, be sure to track it on the carrier's website and find the "Other Packages in this Shipment" section to track all of the individual boxes. For standard/ground shipments, they may arrive on different days.

Part number cross reference:

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

Risers	Part Number
Marine Power	0992-000
Osco Motors	992
Barr Marine	20-0082
Sierra Marine	18-1999
Aqua Power	5705
GLM Products	56110

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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