Could you show me your mechanical fans? - Chevy Impala SS Forum
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post #1 of 3 (permalink) Old 04-21-2014, 05:47 PM Thread Starter
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Atlas Prime's Avatar
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Location: M-Town, Ohio
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Post Could you show me your mechanical fans?


I am doing an LT1 swap into my car.
The Caretaker has a theory that we could use a mechanical fan assembly from a (94-96) Caprice, with an LT1, with a tow package.

The problem is,

I don't even know what that looks like or how it attaches to the motor. The water pump of an LT1 with electrical fans does not seem to have space for a fan.

I would appreciate it to no end if one of you were to snap a few pictures of your assembly and how it fits for me.


1969 Chevy Caprice
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post #2 of 3 (permalink) Old 04-21-2014, 06:19 PM
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The LT1 Clutch fan takes the place of the passenger side electric fan. Factory claims that it lowers the LT1 horsepower rating from 260hp to 250hp. Here's the exploded factory parts view:
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Joel R. Rojas
4th Gen B-Body Sedan, 5th Gen B-Body Sedan & Wagon owner
'84 Caprice Classic Sedan F41 ==> Drydocked for R&D
'95 Caprice Classic Wagon F40 ==> Somewhat Stock
'95 Caprice Classic Sedan WX3 ==> Has 3 pedals
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post #3 of 3 (permalink) Old 04-21-2014, 06:30 PM
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With all due respect, unless a mech fan is absolutely necessary for heavy-duty towing or bracket racing, you &or The Caretaker should use a pair of electrical fans.

Civilian LT1 Caprices, 2.93 Roadmasters, and Fleetwoods with 2.93 or 3.42 came with mech fans. Nearly every single one should have electrical fans instead.
Luckily, cars with less room underhood simply can't fit one, otherwise I'm sure someone would've tried, what with the people here who refuse to delete them.

As Brick B-Body already stated, the mech fan is worth -10 horse.
I cannot confirm that may also cost an MpG or 2.
Jus sayin …

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