The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 47-55.1 hot 305 post radiator swap

geezer#99 · 11-21-2018, 12:51 PM

Make sure you put the thermostat in in the right direction. The spring side goes in the intake.
Do you have a fan shroud?
Do you have a return bottle on the rad overflow?

11-21-2018, 12:51 PM	#6
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,776	Re: hot 305 post radiator swap Make sure you put the thermostat in in the right direction. The spring side goes in the intake. Do you have a fan shroud? Do you have a return bottle on the rad overflow?