273 Overheating

What about a fan shroud? Are you running a shroud?

How far in/out of the shroud is the fan?

a shroud will help direct the air through the radiator to help cooling. You don't want the air to find a way AROUND the radiator, you want it THROUGH IT...


Have you tried running a garden hose through the radiator fins when it's overheating to see if it will cool the engine down. Water can take away much more heat than air and faster. See if that makes any difference.

No room for a shroud, see the pictures a couple posts above yours.

The fan blades are roughly 3/8" away from the Radiator. With no spacer between the fan & water pump.

The only way I could see a shroud fitting, would be a perfectly flat plate of steel or aluminum with a hole cut in the center for the fan to sit in. Wouldn't that restrict airflow, since it'd be hitting a "wall" instead of being funneled toward the fan?


I can try to seal the radiator to the truck a bit, about the only places where I have any metal to attach to is the headlight buckets. The top tank & cap sit tight against the outer skin of the hood (had to cut and bend the inner skin of the hood to clear the top tank and cap).

I'll let you guys know how things go. And just to be clear (better safe than sorry), I'm not trying to be rude with any of my replies, so if they appear to come across that way, I'm sorry.