The Stovebolt.com Forums Home | Tech Tips | Gallery | FAQ | Events | Features | Search
Help is a click away!

VEHICLE
INFORMATION
KITS


at the

GM Heritage Center
All the details are here.

Searching the Site - a click away
click here to search
New here ??? Where to start?
Click on image for the lowdown. Where do I go around here?
====
Who's Online Now
5 members (78buckshot, Biermann, Otto Skorzeny, DadsFirstPickup, Charles in CA), 88 guests, and 1 robot.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums66
Topics128,147
Posts1,056,798
Members48,454
Most Online14,466
Apr 26th, 2026
Step-by-step instructions for pictures in the forums
Brad Allen's photos

AD Chevy Trucks

Pictures galore
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!

Big Thanks!

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!

Previous Thread
Next Thread
Print Thread
Joined: Sep 2010
Posts: 122
R
Shop Shark
Shop Shark
R Offline
Joined: Sep 2010
Posts: 122
Read somewhere about 261's using a double acting thermostat. Anybody know of this? Mine had the "regular" 180 degree thermostat. Want to do it right

Joined: Feb 2002
Posts: 12,029
F
Cruising in the Passing Lane
Cruising in the Passing Lane
F Offline
Joined: Feb 2002
Posts: 12,029
you'd have to find where you read that and figure out what they mean, all thermostats are "double acting" in that they open above a certain temp and close below that temp, there is nothing different about one for a 261

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics
Joined: Mar 2006
Posts: 319
R
Shop Shark
Shop Shark
R Offline
Joined: Mar 2006
Posts: 319
1960 261 thermostat specs found here in "Specifications 16-20" section. (Second page from the end of this compilation)
http://www.canadianmilitarypattern.com/1960%20235-261%20Engine%20Manual.htm


"Nothing astonishes men so much as common sense and plain dealing." - Ralph Waldo Emerson
Joined: Mar 2002
Posts: 9,115
'Bolter
'Bolter
Joined: Mar 2002
Posts: 9,115
The term is used here on Tim's site. double acting thermostat


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Joined: Sep 2001
Posts: 29,270
Bubba - Curmudgeon
Bubba - Curmudgeon
Joined: Sep 2001
Posts: 29,270

ryanz,

What year is your 261?

The thermostat (Dole Pellet Bypass) and housing on my 1960 261 is different in style from other 235 thermostats that I have seen (Harrison Poppet Ball). I put a 235 thermostat and housing on that engine in my 1954 Suburban.


Moderated by  Phak1, Woogeroo 

Link Copied to Clipboard
Home | FAQ | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Powered by UBB.threads™ PHP Forum Software 8.0.0