K20 Upper Coolant HousingApplications: K20A cylinder heads K20A2 cylinder heads K20A3 cylinder heads K20Z1 cylinder heads K24A1 cylinder heads Feature: 16OR (O Ring) Outlet and a 12OR (O Ring) Filler Inlet Filler neck offers both Hose End and 16AN fittings Note: Does NOT fit with the PRB manifold and throttle bodies with cruise control Rad cap is not included Instructions: CLICK HERE We've taken input from guys running big turbo setups on this one. The integrated filler now
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