• Water outlet restrictor kit for GM V-8, GM V-6, Ford 260-302, and 351W.
• Restricting coolant flow leaving the engine lets you control the amount of heat absorbed by the coolant.
• Red, gold and blue anodized aluminum restrictor plates are mounted under the water outlet on the intake manifold.
• Kit consists of three restrictor plates with 5/8″, 3/4″ and 1″ inner diameter holes for optimum coolant flow, 2-1/8″ outer diameter.

SKU: 085 63440