Moroso 63440 Coolant Restrictor Kit
Water Outlet Restrictor Kit. GM V8, GM V6, Ford 260-302, 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" i.d. holes for optimum coolant flow, 2-1/8" o.d.
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