The Dodge Challenger Message Board

i have a 72 challenger i need a fan shroud but there so many different one out there which is the correct one for it i have a 440 going in it and if i use the 18 inch fix blade is this a good choice for max cooling are should i use the clutch fan thank you. Randy

For a 440 you need to fit the 26 inch radiator and the shroud to suit.

If your Challenger origianlly came with a smaller radiator you need to change the radiator frame to the bigger one.

I found a fan shroud in the junk yard from an 85 dodge pickup. It was a perfect fit for my 26" radiator and ony cost $10.00

Very important to have that fan shroud- folk just cannot see those fan blades spinning when the engine is running. Highly dangerous.

Helps cooling as a bonus. That and it looks funky without one.

I'm running a flex fan now with newer cooling components. Cold as a stone even 90+ heat. Just wondering if the stock clutch fan setup is better. I bought one recently a 18-1/2" for the 70 340 but kinda hesitant to install it. You know,, if it ain't broke.......

I have a 22" radiator in my '73 360 with a viscous clutch hub and have adapted a $10 GM shroud to suit as i could not afford to import a shroud from the US. Took me 3 days to fit and line up but looks natural and works a treat. On the big trip i recently did the outside air temp was cool not cold but the engine ran so cold i was starting to get worried. Tt was running so cold the choke even started coming on at 70mph and i was wondering what i could do to make it run warmer. A restrictor in the hose would be no good for city idling so maybe a few layers of fly screen in front of the radiator

How's the thermostate? I think 180 degrees was used in the 70, not sure on your year.

Jon is right. The thermostat should keep the water in the block until it is at 180 degrees F.

Unless like me you have a few holes drilled in the thermostat which slows the heating rate and allows more flow when the thermostat is open. Then if you have plenty of cooling capacity it can run a few degrees cooler than 180.

Yeah, thermostat. I'll have to pull it out and check it. Silly me.