Hatchet54
Full Access Member
- Joined
- Oct 23, 2018
- Posts
- 276
- Reaction score
- 251
- Location
- Wyoming
- First Name
- Red
- Truck Year
- 1977
- Truck Model
- 1500 Sierra Grande
- Engine Size
- 350
I wish we could cut off the debate about plastic tanks, since most new aluminum radiators sold for the squarebody are like the one pictured in post #36 - note that there are no plastic parts in that radiator! This is not a Honda or Toyota.
I used the Champion 3 row for my '75 truck and the brackets and hoses all fit the same as stock. IIRC, the upper hose fitting is stepped so it can handle 2 different sizes of hose - a little odd, but it sealed well.
I am using a high flow 195 degree thermostat (which appears to be a little off in calibration), and it lets the engine get up to a little over 190, then opens and the temp moves down to 185. It stays at that temp regardless of driving conditions. Its been about 90 degrees outside lately, and I could let the truck idle with the A/C on, run at 60 mph traffic, etc., and its always at 185. The temp is measured with a Stewart Warner mechanical guage, tapped into the cylinder head sensor port.
Bruce
Did you use your stock fan for this setup?
Currently debating if the electric fan shroud combo is worth it. It's a lot of extra $$$...