Water Neck Spacer.

Aeroflow's Chevy water neckspacer kit is the perfect solution for allowing an extraauxiliary port of coolant and can be used for many applications including plumbing coolant to a turbocharger , extra coolant flow from rear of heads or simply connecting your heater in a conversion. The unit is 28mm (1-7/64") high and features 2x -8 ORB female threads.

Available in Silver or Black.