Exhaust Manifolds
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Generic GM V8 Small Block Center Rise Exhaust Marine Manifold | SIERRA 18-1997-1SIERRA-18-1997-1Qty In Stock: 6Brand: Sierra
For use with both the port or starboard side of the engine. Fits most GM 283, 305, 307, and 350 small block engines.
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OMC GM Small Block Exhaust Manifold | Sierra 18-1903SIERRA-18-1903Qty In Stock: 11Brand: SierraPort exhaust manifold fits OMC GM 5.0L & 5.7L marine engines with end riser. Learn More
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OMC GM Small Block Exhaust Manifold | Sierra 18-1902SIERRA-18-1902Qty In Stock: 16Brand: SierraStarboard exhaust manifold fits OMC GM 5.0L & 5.7L marine engines with end riser. Learn More
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Mercruiser GM V6 Exhaust Manifold | Sierra 18-1952-1SIERRA-18-1952-1Qty In Stock: 136Brand: Sierra
Mercruiser center rise exhaust manifold used with Mercruiser 3.8 liter & 4.3 liter CID marine engines from 1985-2002.
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Mercruiser GM Small Block Exhaust Manifold | Sierra 18-1953-2SIERRA-18-1953-2Qty In Stock: 84Brand: SierraCenter rise exhaust manifold fits Mercruiser GM 5.0L & 5.7L CID marine engines. Learn More
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Mercruiser GM Big Block Center Rise Exhaust Manifold | Sierra 18-1957-2SIERRA-18-1957-2Qty In Stock: 58Brand: SierraCenter rise exhaust manifold fits Mercruiser GM 7.4L & 8.2L CID marine engines. Learn More