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Water outlet restrictor kit GM V8 GM V6 and Ford 260-302, 351W
Restricting coolant flow leaving the engine lets you control the
amount of heat absorbed by the coolant. Plates are mounted under the water
outlet on the intake manifold. Kit consists of three restictor plates with 5/8",
3/4" and 1" I.D. holes for optimum coolant flow, 2-1/8"
O.D.
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