The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 71 350 running hot coolant backup up problem

**Grumpy old man** · 02-04-2018, 09:23 AM

Looking at your pictures your bypassing the heater core which would add about a gallon in volume , i would use a 180 thermostat and for a few bucks more the Champion all aluminum radiator that many guys use and like that fits well .

02-04-2018, 09:23 AM	#90
Grumpy old man Senior Member Join Date: Dec 2013 Location: Gods country East,Tn Posts: 8,545	Re: 71 350 running hot coolant backup up problem Looking at your pictures your bypassing the heater core which would add about a gallon in volume , i would use a 180 thermostat and for a few bucks more the Champion all aluminum radiator that many guys use and like that fits well .