Originally Posted by Red
When mounting a water pump on a 235 are all the holes blind or do some bolts enter the water jackets? Red

Red - To answer your question on the water pump mounting bolt holes enter the water jacket, my experience has been yes they do. You need to use an appropriate sealant on the bolt threads to prevent leakage. I personally like to use Permatex #2 Form-A-Gasket on my water pump and thermostat housing seals and bolt threads.


~ Dan
1951 Chevy 3 window 3100
Follow this story in the DITY Gallery
"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)