| |
Click on image for the lowdown. 
====
|
| | Forums66 Topics128,052 Posts1,055,717 Members48,426 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
|
| THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
|
| | | Joined: Sep 2009 Posts: 5,819 Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT | | Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT Joined: Sep 2009 Posts: 5,819 | Redbird,
The first picture shows an add-on water flow shut off valve (not original equipment) which can be used to shut off or restrict coolant flow to the in-cab heater core.
The second picture is of an original "optional" in cab heater "Ranco" control valve which is used to control coolant flow to the heater core. As this one appears disconnected/bypassed, assume it failed at some point and a previous owner used the add on valve at water pump to control coolant flow.
Dan
~ Dan 1951 Chevy 3 window 3100Follow 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)
| | |
|
|
| |
