This is the fitting that is pressed into the rear of the passenger side cylinder head that the heater hose attaches to. This is a new piece that is CNC machined of high-grade 416 stainless steel with correct interference fit. This fitting is used on all V8 Pontiac 326 350 389 400 421 428 455 engines from 65-81.
Unlike the o-ring style, this coil spring design regulates large fluctuations in flow (maintains 5-6 gallons/minutes) and is compatible with stamped impellers, cast impellers, high volume pumps, and street/strip pumps.
Fits 66 67 68 69 70 71 72 73 74 75 76 77 78 79 GTO LeMans Tempest Formula Firebird Trans Am Grand Prix
Per California Law (Prop 65) we are required to put the following warning on all our listings.
WARNING: This product can expose you to chemicals, including lead, which is know to the state of California to cause cancer, birth defects and or reproductive harm - www.P65Warnings.ca.gov