LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

LT1 water pump... short of long style?

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Old Feb 1, 2010 | 11:09 PM
  #1  
Colin's Avatar
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From: Victorville, CA
LT1 water pump... short of long style?

Hey guys,
I'm going to be running a remote electric water pump on my LT1. Because of this, I need to figure out whether I need a short-style alternator bracket or a long-pump style. Anyone have a clue which style bracket I would need?

My application is somewhat unconventional. Front-style motor mounts with the only belt-driven accessory being an alternator. Due to room constraints, I need to run the alternator up high near the throttle body. I just don't know whether the belt alignment is short-style or long-style.

thanks for your help.
Old Feb 3, 2010 | 12:03 AM
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Colin's Avatar
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No one here knows if the depth of the balancer from the block is equivalent to a short or long water pump?

C'mon guys, help me out. I really want to drive my Vega.
Old Feb 3, 2010 | 02:53 AM
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I'm curious on how you're planning to do this. The coolant passages on the front of the block will not work with a conventional remote SBC water pump - they are LT1-specific.
Old Feb 3, 2010 | 06:55 AM
  #4  
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Originally Posted by Colin
No one here knows if the depth of the balancer from the block is equivalent to a short or long water pump?

C'mon guys, help me out. I really want to drive my Vega.
The LT1 has no short or long style and the water pump is not belt driven, so it's a little hard to come up with a positive answer.
Old Feb 3, 2010 | 09:44 AM
  #5  
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RamAir95TA,
I have had block plates made so I can dual-feed the block. I'm going to be selling them, as well. It's actually a pretty simple setup. It does require a remote thermostat, though. The setup is pricey...about $800 all-in.

shoebox,
I've used your site numerous times. If you want, I'll send you a write-up on how I did this. I guess I'll hit Pick-A-Part and yank an alternator bracket off an 80s Camaro so I can see if it's long or short and then go from there.

Thanks for the help.
Old Feb 3, 2010 | 10:26 AM
  #6  
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Do these plates maintain the "reverse flow" unique to the LT1's?
Old Feb 3, 2010 | 11:47 AM
  #7  
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Yes, they do. I'm using a dual-outlet Meziere 55gph electric water pump. I am dual-feeding the block and then the coolant leaves each side and joins in a remote thermostat housing. From there, I have a single 1.5" conventional hose into my radiator.

I had to run this setup because I can't run standard small block engine mounts in my application. I am using front engine mounts that prevent me from using the serpentine system. If you're interested, it's the Hooker V8 Vega kit.
Old Feb 3, 2010 | 12:47 PM
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Sounds like a neat setup! I'd love to see it.
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