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Old 05-20-2007, 02:28 PM
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Converting a 95' lt1 to carb set up.

Hey,
I have a 95' lt1 out of a caprice. I want to put it in a Chevy truck, but most of the emissions bs, is fouled. I was just wanting a good source for the intake manifold, and was wondering if I could use one off of the run of the mill 350, or if it needs to be specifcally for the LT1. Any help is much appreciated.

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Old 05-20-2007, 04:21 PM
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I was looking at this myself, but was told that I would have to replace the heads to fit a carburetor intake on the engine. But as I looked into it the LT1 wouldn't work this way either since the whole engine casting looks different to me, So I'm not sure you could just place a set of 350 heads on a LT1.

See Pic's:

350





and now the LT1

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Old 05-20-2007, 04:27 PM
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Far as I know you can`t use a old school 350 intake. Nor can you use older heads, the LT1 is reverse cooled, the old heads will bolt on, but none of the coolant passages line up. The same is true for LT1 heads on a older 350. Summit racing carries this intake for what your looking to do.
http://store.summitracing.com/partde...2&autoview=sku
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Old 05-20-2007, 05:02 PM
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Thanks, I kind of figured I'd have to buy one. I appreciate the info guys!
I love this site!
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Old 05-20-2007, 05:09 PM
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There is a car at the track where I run, they put a carb. and distributer
on a LT1. It works great, I'll find out what intake was used.
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Old 05-20-2007, 05:16 PM
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That would be great. thanks
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Old 05-20-2007, 05:35 PM
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GMPP sells the only intake I seen for the LT1 that I know of. Godd luck on whatever you try
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Old 05-21-2007, 07:48 PM
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The LT1 heads and intake are specific to the LT1/L99 engine. As has been stated, the coolant passages don't line up. The iron head LT1 is the head that spawned the vortec head. The ports flowed so nicely that they used those exact ports when they came out with the 96 Vortec head. The aluminum LT1 heads are fine, but flow about 20% less on the intake side.

There are carb intakes available from GMPP for about $300. Then you can stuff a traditional ignition in the hole because the optispark won't work without the computer. You can (and probably should) leave the optispark in place just to fill the hole. I forget the finer points, but the water pump and optispark are driven off the front of the cam. Probably just easier to leave it intact but not hook it up.

When you're done you will have basically duplicated the operating parameters of a small block with vortec heads; a respectable combo.
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