sdmartin65

Just bought a new light duty fan clutch and am looking for a lighter plastic fan? Just did this on another truck with a 302, the end result is lot quieter and less drag on the motor. The bolt circle is slightly smaller on the 4.9 vs a 302 fan to clutch bolts.

sdmartin65

Ended up using a plastic fan from a Blazer 4.3l. It's a little lighter and has more blades, 11 vs 7. Have to see how it works but so far so good.

flareside crazy

well that's a good idea what did you use for the 302?

sdmartin65

With the 302 I used a lite duty fan clutch used in a 90's v8 mustang and a plastic fan used on an explorer. The setup was around $60 but its way quieter and lite weight. This was purchased new at Oreilly. Even fully engaged its a lot less drag than what comes oem on the truck and cools my truck just fine.

flareside crazy

and everything was bolt on? same bolt pattern on the water pump and everything?

sdmartin65

With the 302 yes. Seems as the 302's use the same bolt pattern and serpentine belt ones are all reverse rotation. The fan and clutch that's oem would work the heaviest use, but the lite duty works fine for my needs.

flareside crazy

well my needle never comes off N anyway with the stock fan and fan clutch so if it ran a little bit hotter I think I would be okay I might try this out thanks for the info bud

flareside crazy

took your advice and got a mustang fan clutch and explorer fan and installed them today seems to have helped some thanks for the idea man if you have any other little stuff like that you wanna share it would be appreciated

sdmartin65

When I researched doing the fan mod, the lite duty clutch runs about 60 - 70% of rpm at full lock. The oem severe duty was 80 - 90%. That coupled with the lite weight fan and the difference is noticible. About as close to an efan you can get without an efan.

The Explorers run a electronic clutch fan that totally spins free until some lock is induced. Seems like for a vehicle that could tow the manufacturers won't install e fans unless at least a couple 18's can fit.

flareside crazy

I have a e fan ready to be bolted on but im not to great with wiring and I really don't want to get stuck out because I wired it up wrong so im happy with this set up being less likely to fail on me