Does the rad have an overflow tank? The idea is for the cooling system to suck coolant back from the overflow tank as the system cools. If the tank is in place, I would suspect the rad cap is not functioning correctly.
Looking for leads on a storage bay to rent within an hour or two of Denton NC where the C10 Revival Show is located. Looking to store a utility trailer with a couple of motorcycles. Will need the bay from late October through until April 2025 maybe later.
We used Hedman Standard Duty Black MAXX Ceramic-Metallic Coated Mid-Length Headers on a SBC 355 with Vortec Heads. Collector connections are kept high as we did not want the exhaust to hang low.
I pulled the valve cover with the breather and removed the internal baffle that was held in place with screws. Then I inserted a new breather grommet with a built-in baffle for the breather. When I need to add oil I pull both the breather and its grommet.