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Author Topic:   Steel 4 blade fan???
Dirt Forum Champ
Total posts: 1261
posted April 12, 2004 09:40 PM  
does anyone know the part # for the 17" 4 blade steel fan???

Dirt Maniac

Total posts: 171
posted April 13, 2004 05:26 AM  
the one that afco sells? I have one on the car, but can't think of the number at the moment.

Dirt Forum Champ
Total posts: 2007
posted April 13, 2004 08:06 AM  
The best 4 blade is the stock GM#405442 (I think) It is actually 19" but we have cut them down to 16".

Dirt Roller

Total posts: 25
posted April 13, 2004 03:36 PM  
We attended the Brooks\Shaw school and it was one of thing they recomended......
unfortunately I didn't write down the part number. If you call Kevin Shaw at their shop I'd be willing to bet he'd give you the G.M. part number.

Dirt Forum Champ
Total posts: 755
posted April 13, 2004 05:09 PM  
The GM # is 405442, this is the most powerful fan available, only down fall is it wasn't designed to see 8000 rpm's so keep an eye on the rivets as they are the weak spot.

FearDaPierce 35
Dirt Roller

Total posts: 22
posted April 13, 2004 05:26 PM  
Running alchol or gas? if your running alchol get a plastic 4 blade fan. We have used one for last 10 yrs never had a prob with the car overheating

Dirt Freak

Total posts: 357
posted April 13, 2004 06:08 PM has them aluminum or steel blades steel hub. 15" 17" and 19" best deals.

Dirt Forum Champ
Total posts: 2007
posted April 14, 2004 08:08 AM  
Ill agree with 2nd2none that the GM fan prob wasnt designed for 7000 rpm but picturing it in my head it is like 2 overlapping pieces of steel that are riveted together but also the fan bolts go through ea piece too. Even if it did lose a rivet its still bolted together and wont come apart like some fans would. Actually to me it looks safer than some of the aftermarket ones i have seen.

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