I have a 66 c-10, the motor gets hot at slow speeds. Do I need an electric fan or find a shroud and clutch fan??


Asked by Apr 05, 2014 at 11:07 PM about the 1966 Chevrolet C10

Question type: Car Customization

I have a 350 and the fan sits about 3 inches lower and about 8 inches away from the
radiator.  Can't seem to find a shroud to fit and don't know if it would being so low and far
away.  Any help would be greatly appreciated since I'm losing my mind

6 Answers


What radiator are you using? The one that was with the original engine? If so I recommend you get a heavy duty radiator, keep looking for a proper shroud and look for a chemical additive that disburses the heat from the coolent. Sorry I don't remember the name.

John Carson

Do you have a lot of chrome on the engine? Chrome parts retain the heat. Also did you build up the engine for more HP? The more horses, the more heat produced. Find a four row aluminum radiator, run a 160 thermostat, and you might consider putting louvers in the hood to vent the heat out of the engine compartment. You have the heart of a Clydesdale horse in a Shetland pony. If you get the bigger radiator, find a good electric fan that will fit into your configuration. I took the thermostat out of the fan wiring loop and have the fans run full time. It helped in my engine build up in my Corvette. Taking the fan off the pulley system will work it less and give at least a ten HP boost. Replace some of the chrome with polished aluminum also. This will help remove the engine heat.

James Kitlas

Yes a shroud & 5-7 blade clutch fan would help & a spacer between the pump & fan would bring it closer & sounds what you are missing. And or a HD 4 core radiator too. A stock 6 cyl radiator isn't enough cooling for a V8.


Still can't find a shroud. Would an electric fan work best or a clutch fan


The correct clutch fan is good bit if you can get a good electric fan you'll add a few extra horses.


I'm going to state the obvious here; A stuck-open or missing thermostat will cause this problem. Symptoms are 1. slow to warm up. 2. temperature gauge never settles down to a consistent reading and varies with engine RPM and vehicle speed. 3. Coolant flows through the radiator immediately on cold engine start. If you bought this truck in the deep south, many backyard mechanics will remove the thermostat thinking they are doing their engine a favor and wonder why they overheat while sitting in Houston traffic in August. Obvious, yes, but often overlooked!

Your Answer

Add photo

Related Questions


Looking for a Used C10 in your area?

CarGurus has 135 nationwide C10 listings and the tools to find you a great deal.


Search Chevrolet C10 Questions

Chevrolet C10 Experts

#1 CaptPKelly
Reputation 440
#2 Rowefast
Reputation 160
#3 tennisshoes
Reputation 140
View All

Related Models For Sale

Used Chevrolet Camaro"
799 Great Deals out of 38,852 listings starting at $2,650
Used Ford Mustang"
737 Great Deals out of 41,065 listings starting at $900
Used Chevrolet Corvette"
434 Great Deals out of 20,234 listings starting at $3,688
Used Ford F-100"
167 listings
Used Chevrolet Impala"
938 Great Deals out of 35,697 listings starting at $1,500