I spoke with David K. this week and he shared some info about a new accessory from Kirkham.
They made a Billet Radiator Surge Tank.
David said, "...I got really sick of the old radiator surge tanks leaking and causing us so many problems. So, a few weeks ago I told my machinist I had had it and handed him a tank and told him to make it out of billet aluminum!"
"...We also made the connection to the engine seal with an o-ring. No more messy silicon on the gasket.
We also made the opening for the radiator thermostat SMALLER so you can now use the VERY common small block thermostats. The big thermostats are getting harder and harder to find so we just gave up. There is a much better selection of the small block thermostats anyway."
Contact David at KMS for availability
...click here for more info.
Each image below is hotlinked to a full-sized pic.