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#41193 05/24/2004 10:54 PM | Joined: Apr 2004 Posts: 31 Junior Member | | Junior Member Joined: Apr 2004 Posts: 31 | Hey 'bolters!
Question:
What would be the correct "operating temperature" for a 1965 GMC 1/2 ton, stock 230 inline 6, 4 speed, with HEI, no A/C.
It currently has an oversize aftermarket 3 row radiator with an 18" electric fan, shrouded and controlled be a 200 degree ON / 180 degree OFF temperature sensor mounted in the water neck. It also has a 180 degree thermostat. The fan cycles on and off accurately and for the most part, unless idling in traffic, stopped or climbing a hil, usually stays in the 180/190 degree range.
I'm asking this just to sure it's set up at the correct "operating range".
Someone mentioned to me that I would be better off with a 185 degree ON / 165 degree OFF sensor, and a 160 degree thermostat...
And the boards thoughts are???
Many thanks, Pete in PA.
Pete in NE PA
1964 Cheverolet Carryall
1965 GMC 1/2 ton
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#41194 05/25/2004 12:47 AM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | I would stay with what you have. The higher temperature water transfers heat faster. I run a 180 on my 261.
Paint & Body Shop moderator
A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
#41195 05/25/2004 3:23 AM | Joined: Jul 2003 Posts: 55 Member | | Member Joined: Jul 2003 Posts: 55 | Stick with what you have. 190-210 is a good range for almost any engine to operate at. This leads to decreased cylinder wear, etc., etc. The graphs for that info are pretty cool. What you have is fine. John
1968 Chevy C-10, 250 and 3 speed on floor, Hedman headers, Offy intake, Edelbrock 600cfm 4 barrel, HEI
1966 Chevy C-10, motor and tranny went into the '68. Waiting to be restored.
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#41196 05/27/2004 12:00 AM | Joined: Apr 2004 Posts: 31 Junior Member | | Junior Member Joined: Apr 2004 Posts: 31 | Thanks Guys.... I thought what I had was OK, didn't seem to be any problem.... But you know how it goes someone puts a bug in your ear... :rolleyes:
Thanks again... Pete
Pete in NE PA
1964 Cheverolet Carryall
1965 GMC 1/2 ton
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