what, or where, is the overflow tank from, and how much does it hold ?
Pretty sure what you are talking about is a "surge" tank. The radiator lower than the engine creates an issue. That tank allows Tony to fill the engine with water and not have any air pockets.
Looks awesome Tony cant wait to see it run.
It’s a 1.5 quart surge tank . If you look close , it’s fed on the bottom from the block , and there is a bung welded on the upper side to feed the radiator. There is a pressure transducer to data log coolant pressure (keep tabs on head gasket life)
Yes Al is also correct , you need a “high” spot to bleed air out of the cooling system . It solves a lot of issues
