Over Heating C3
Thread Starter
3rd Gear
Joined: Aug 2020
Posts: 3
Likes: 0
From: Phoenix, AZ
Over Heating C3
I have a 76 C3 with a 350 V8 in it. I live in Phoenix which is not the ideal place for a hot car so I put an aftermarket AC system in it and it works very well. However, the car has a tendency to overheat. So I put a new aluminum radiator in it and new hoses, along with dual electric fans and a controller module for that. But it's still running hot. Is there anything else I can do to make it run cooler? I was thinking heat wrapping the headers and maybe a new hood to release some of the built-up heat. Is there anything else I can do?
Melting Slicks
Joined: May 2015
Posts: 2,365
Likes: 428
From: Cape Girardeau Missouri
Overheat at idle? highway speed? normal driving?
Irregardless the C3 design requires excellent seals around the radiator and sealing to ensure that the functional side vents ARE functional!
Irregardless the C3 design requires excellent seals around the radiator and sealing to ensure that the functional side vents ARE functional!
Race Director
Joined: Mar 2017
Posts: 11,949
Likes: 4,507
From: Virginia
Where are you measuring your temperature, and have you confirmed with an IR thermometer?
Without pictures, I'd suggest checking the timing first. Also, with headers, your engine may now be running lean.
If you do cut holes in your hood, do what a C7 does, or what @Bee Jay did with a C7 hood vent. Almost anything else will just make your heat problem worse.
https://www.corvetteforum.com/forums...od-stripe.html
But please start with some pictures!
Without pictures, I'd suggest checking the timing first. Also, with headers, your engine may now be running lean.
If you do cut holes in your hood, do what a C7 does, or what @Bee Jay did with a C7 hood vent. Almost anything else will just make your heat problem worse.
https://www.corvetteforum.com/forums...od-stripe.html
But please start with some pictures!
Last edited by Bikespace; Sep 1, 2020 at 05:48 PM.
Melting Slicks
Joined: Feb 2017
Posts: 3,232
Likes: 1,232
From: PHX AZ
Welcome Andre' I'm in PHX too. I'm going to lurk for a while. I've written about this at least three times.
See the little button in the upper right says SEARCH THREADS. Try typing in OVERHEATING.....20 pages come up.
Unkahal
See the little button in the upper right says SEARCH THREADS. Try typing in OVERHEATING.....20 pages come up.
Unkahal
