Mr. Gasket High Performance Thermostat - 180 - High-Flow - Copper, Brass - GM , Ford Thread Locker / Sealer The proportioning valve may be

The proportioning valve may be adjusted to limit rear brake pressure to help prevent rear brake lock-up

510 in D Port

1-1/2" aluminum bracket bolts in the center of the chassis to mount a 5th coil shock assembly

Bloomquist Style

Fits SU126C

Mr. Gasket High Performance Thermostat - 180 - High-Flow - Copper, Brass - GM , Ford Thread Locker / Sealer The proportioning valve may beGM Ford AMC 180 degrees. SEE catalog for application chart. These high performance thermostats are designed to resist large variations in coolant pressure that occur at high rpm's where coolant temperature and coolant pressure fight for control of the thermostat keeping it from opening at its designated temperature. The balanced HP thermostat features all brass and copper construction, and open at the right temperature regardless of engine RPM.