; 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 I.D. holes for optimum coolant flow, 1-1/8 O.D.
- 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 I.D. holes for optimum coolant flow, 1-1/8 O.D.