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LS2 vs LS1 water pump dimensions

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Old Jan 7, 2007 | 07:56 PM
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Default LS2 vs LS1 water pump dimensions

I'm trying to find out if they both have the same dimensions on the pulley side, does one stick out more towards the radiator? If memory serves me correctly the LS2 gives you more room between the radiator and the pulley for the water pump. TIA.
Phil
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Old Jan 7, 2007 | 09:38 PM
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I would imagine that the LS1 & LS2 are about the same.....the accessory drive for a C5 & C6 are basically the same (they use the same power steering set-up).

P.S. Are you still looking for a set of intake flanges? I have this set below available for a nice price (PM me if you're interested!)
Attached Thumbnails LS2 vs LS1 water pump dimensions-mtintakerunners.jpg  

Last edited by John B; Jan 7, 2007 at 09:43 PM.
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Old Jan 8, 2007 | 02:43 PM
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The LS1 pulley is about 3/4" wider out the front than the LS2 pump, I needed that much in my old hot rod and it worked perfectly. To use the LS1 accessories I had to pull the pulley about 3/8" out on the LS2 pump. This is a picture of it completed.
Attached Thumbnails LS2 vs LS1 water pump dimensions-img_0158-small-.jpg  
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Old Jan 8, 2007 | 08:15 PM
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The LS1 pulley is about 3/4" wider out the front than the LS2 pump
Was this an F-body or Y-body?
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Old Jan 9, 2007 | 08:55 AM
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F-body stuff
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Old Jan 9, 2007 | 09:39 PM
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To use the LS1 accessories I had to pull the pulley about 3/8" out on the LS2 pump.
That's why, you used F-body accessories...they Y-body accessory drive sits closer to the engine block.
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