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Exhaust Manifold, Mercruiser GM 454 7.4L, 502 8.2L V8
	Quantity in Cart: None Part Number: OSC9011 Price: $199.00 Weight: 51.00 lbs. This item is also available in our eBay store.
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Exhaust Manifold for Mercruiser applications. It is a center riser Manifold that was used on GM Big Block Engines From 1983 & up. It uses Riser OSC8503A for the 3.0", and OSC4354 for the 4.0". Also, the mounting kit is OSC9011-MK. NOTE: This manifold WILL NOT FIT Dry Joint Exhaust Systems. Osco Manifolds and Risers come with a 3-year warranty (PDF)! Categories OSC9011 is found in. Manifolds for Mercruiser Inboards Manifolds for Mercruiser OSC9011 is found on the following pages in the Basic Power Sterndrive/Inboard Catalog. 087

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