The Stovebolt Site Forums The Shop Area Engine Shop Help with Overheating problem (1952 GMC 228)

I wish I’d have taken before and after pics of my coolant in the overflow jar. From embrassingly gross to fluorescent green.

Thanks for the tips, Jerry! Did both the muriatic acid flush and the TSP. Wasn’t until after the TSP that the block drain flowed as freely as it should. Was a crap ton of work, but well worth it in the end.