Thermostat and spacer kit – late model (aftermarket) (includes a 160 degree single-acting thermostat)
If you have the ability to easily remove your thermostat housing studs and replace them with manifold studs, such as would be the case if you’re planning to remove your cylinder head to facilitate other maintenance, this kit is the most cost-effective way for you to convert to a late model aftermarket thermostat.
If this is your situation, you can replace your thermostat housing studs with manifold studs (which are 1/4″ longer) to accommodate the required 1/4″ spacer under the aftermarket thermostat. You can then reuse your original thermostat housing without modification.
The kit includes an aftermarket 160 degree single-acting thermostat, two manifold studs, two gaskets, two regular 9/16″ head nuts and a spacer. Single action thermostats require a method of controlling the flow within the bypass loop in order to provide the necessary flow through the block and head to enable the thermostat to regulate temperature within normal range. If you do not already have a valve in your bypass loop, you can find one in our online catalog with a product number of CSOT_01_61.