Serp system mechanical fan

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321GO

Not-quite-so-new-guy
Jan 23, 2018
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Hi I bought a 90 iroc front accessories SERP system for my 85 Buick Regal with a sbc 350 I want to keep my mechanical fan I wanted to know how I could do that
 
You will need to find a fan from a vehicle that uses the serpentine belt system with a mechanical fan. I found a fan from a late '80s or early '90s GM pickup for mine. Keep in mind that the serpentine setup rotates in the reverse direction to a V belt setup. You will also need a water pump that is reverse rotation as well.
 
You will need to find a fan from a vehicle that uses the serpentine belt system with a mechanical fan. I found a fan from a late '80s or early '90s GM pickup for mine. Keep in mind that the serpentine setup rotates in the reverse direction to a V belt setup. You will also need a water pump that is reverse rotation as well.
So I need to go to junk yard An look for a like 88-92 Chevy 5.7 fan?
 
305 or 350. Doesn't matter. S10 truck with the 4.3 V6 and serpentine MAY be the same, I'm not 100% sure. Just make sure that it comes off a vehicle that has a serpentine setup, and is the same overall diameter as the V belt mechanical fan. Good luck.
 
305 or 350. Doesn't matter. S10 truck with the 4.3 V6 and serpentine MAY be the same, I'm not 100% sure. Just make sure that it comes off a vehicle that has a serpentine setup, and is the same overall diameter as the V belt mechanical fan. Good luck.
I’m gunna go take a look today thank you for your help
 
Be watching to see what you find to make work I'd like to make my 305 serpentine belt drive. Good luck with your hunt.
 
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Anything with a serpentine system with a mechanical fan should work. as they switched to only long water pump long before they used serpentine belts.

Vortec powered trucks have them too.
 
Anything with a serpentine system with a mechanical fan should work. as they switched to only long water pump long before they used serpentine belts.

Vortec powered trucks have them too.


Should clarify, Vortec 5.7 / 5.0 / 4.3 powered trucks
 
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