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This manifold swap requires an intake manifold adapter to properly route coolant ports and seal vacuum ports
APPLICATIONS
these are perfect for 8th gen head swaps and all motor applications
we developed an innovative solution that combines different materials to dampen and reduce unwanted noise and vibrations
Darton Sleeves K20c 86mm Honda Passport This manifold swap requires anFITS: K20C1, K20C4, K20C6 Many production cast iron and aluminum blocks suffer from a design weakness of cylinder stability by nature of poor support at the upper deck area. The manufacturing process of "cast in sleeves" provides for economy of scale in low horsepower engines, but does not accommodate high horsepower, high boost, or larger bore sizes. Darton has engineered a superior solution by using a unique designed cylinder sleeve which when
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