Oversized radiator - The 1947 - Present Chevrolet & GMC Truck Message Board Network

79blazer · 05-22-2007, 08:02 AM

On my 79 blazer, It will want to overheat mostly when stopped and when outdoor temperatures are over 110 degrees (arizona) It has a new 160 degree tstat and flush. If I run a 195 t-stat, (for MPG) it over heats easier. I am thinking it is the fan clutch. Also, it has a slow leak in the center of the radiator. Are the radiators from the larger trucks bolt in? I want to run an electric fan, and remove the mechanical fan.
It is starting to get hotter now, and I know I will have to start keeping an eye on the gauge again, until it's fixed.

Two Questions:
If I put in an oversized radiator, wouldn't it hardly even need any fan? I mean using one "meant" for a 454 engine, on my little 305 engine.

Is a larger radiator, on a bigger engine truck, bolt in?

05-22-2007, 08:02 AM	#1
79blazer Registered User Join Date: Aug 2006 Location: Mesa, Arizona Posts: 136	Oversized radiator On my 79 blazer, It will want to overheat mostly when stopped and when outdoor temperatures are over 110 degrees (arizona) It has a new 160 degree tstat and flush. If I run a 195 t-stat, (for MPG) it over heats easier. I am thinking it is the fan clutch. Also, it has a slow leak in the center of the radiator. Are the radiators from the larger trucks bolt in? I want to run an electric fan, and remove the mechanical fan. It is starting to get hotter now, and I know I will have to start keeping an eye on the gauge again, until it's fixed. Two Questions: If I put in an oversized radiator, wouldn't it hardly even need any fan? I mean using one "meant" for a 454 engine, on my little 305 engine. Is a larger radiator, on a bigger engine truck, bolt in? __________________ 79 Blazer Cheyenne, 2wd 305 3.42 stock 85 Caprice, TBI converted, new 350 crate motor, Monte Carlo SS Wheels, Bilstein shocks,



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