Ls1 water pump pulley
Joined: Aug 2007
Posts: 24,241
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From: Turnin' Wrenches Infractions: 005
The truck pumps had provisions for bolt on fan clutches (typical center bolt). The issue there is i believe the offset for truck vs car pulley is different. In the car offset, no, one was never available stock.
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I've seen the early vette pump with a bolt on pulley, but not the f body offset.
I've swapped pulleys on the f body pump in order to run a mechanical fan though.
Maybe explain your setup and what you're trying to achieve, there may be a simpler way to do it.
I've swapped pulleys on the f body pump in order to run a mechanical fan though.
Maybe explain your setup and what you're trying to achieve, there may be a simpler way to do it.
Thread Starter
Teching In
Joined: Feb 2016
Posts: 36
Likes: 0
Im trying to get a mechanical fan work with f body belt line. Currently I modified a stock water pump and pressed on a flange from a Lexus to run a toyota fan clutch . Only issue is I don't have the center nub to center fan so I'm forced to custom machine my fan clutch to fit centered. I tried on two water pumps to remove the truck pulley to swap it out. They are so pressed on. Maybe drill out the center shaft to save the pulley? I figure a bolt on pulley pump I could make a pulley /adapter In one. Trying to make it so I can basically order parts off the shelf if they fail . Less custom parts the better
I run a PRW pump, 1434620, which has a bolt on pulley. They are available for Fbody spacing.
http://store.prw-usa.com/products/wa.../gm-ls-series/
http://store.prw-usa.com/products/wa.../gm-ls-series/
I get it now.
I've put a truck pulley on the f body pump so I could have a mechanical fan with the forward facing f body pump outlet. That was for truck spacing. IIRC, I measured and the truck pulley cant be pushed on far enough for f body spacing.
I've put a truck pulley on the f body pump so I could have a mechanical fan with the forward facing f body pump outlet. That was for truck spacing. IIRC, I measured and the truck pulley cant be pushed on far enough for f body spacing.
Im trying to get a mechanical fan work with f body belt line. Currently I modified a stock water pump and pressed on a flange from a Lexus to run a toyota fan clutch . Only issue is I don't have the center nub to center fan so I'm forced to custom machine my fan clutch to fit centered. I tried on two water pumps to remove the truck pulley to swap it out. They are so pressed on. Maybe drill out the center shaft to save the pulley? I figure a bolt on pulley pump I could make a pulley /adapter In one. Trying to make it so I can basically order parts off the shelf if they fail . Less custom parts the better
Teching In
Joined: Sep 2018
Posts: 1
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FYI, If by chance you did get the pulley to accept a fan the forward facing outlet on the Camaro style pump has a clearance issue. I have designed a 90 degree fitting that can be clocked in any direction. Just remove the original tin nipple and press this aluminum fitting in to route into your radiator. The 90 degree has a threaded port to accept any size hose nipple. Photo's can be sent to show location(would not download). Please contact Ron's Restoration for this fitting @ rrtinwork@hotmail.com