The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 2-Part Cooling Question

Shyguy · 04-07-2013, 10:42 PM

When you put the shroud on you need to make sure that the fan fits at least half way into the opening.

I bought a '75 that had a different engine in it and the fan is outside the shroud. The engine runs cool enough when the truck is moving, but when it is setting still and running it starts to get pretty warm.

I put a set of of electric fans with a shroud from Summit on a '92 with a 454 and for some reason which I could not figure out the stock clutch fan kept it cooler.

If you go with electric fans you will need a higher output alternator.

04-07-2013, 10:42 PM	#8
Shyguy Junior Member Join Date: Dec 2006 Location: Southeast Missouri Posts: 2,436	Re: 2-Part Cooling Question When you put the shroud on you need to make sure that the fan fits at least half way into the opening. I bought a '75 that had a different engine in it and the fan is outside the shroud. The engine runs cool enough when the truck is moving, but when it is setting still and running it starts to get pretty warm. I put a set of of electric fans with a shroud from Summit on a '92 with a 454 and for some reason which I could not figure out the stock clutch fan kept it cooler. If you go with electric fans you will need a higher output alternator. __________________ '67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E.