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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

LT1 intake manifold question

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Old Jan 3, 2011 | 12:53 PM
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Default LT1 intake manifold question
Is there any differance between a 1994 intake and a 1996? Headed back to the junkyard to pick up a few things in a few minutes and wanted to know if the intakes were the same, if so ill pick up the 1994 intake.
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Old Jan 3, 2011 | 12:59 PM
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Nope, they are the same. The only differences lie in the 93 intakes which do not have the front fuel crossover provision.
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Old Jan 3, 2011 | 01:19 PM
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Originally Posted by RamAir95TA
Nope, they are the same. The only differences lie in the 93 intakes which do not have the front fuel crossover provision.
Great! Thanks for the reply and your help
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Old Jan 3, 2011 | 01:33 PM
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Originally Posted by RamAir95TA
Nope, they are the same. The only differences lie in the 93 intakes which do not have the front fuel crossover provision.
dude u are a font of endless knowledge when it comes to OEM stuff on these cars lol....im impressed lol
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Old Jan 3, 2011 | 01:44 PM
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Originally Posted by quik95lt1
dude u are a font of endless knowledge when it comes to OEM stuff on these cars lol....im impressed lol
Blahhhhh...when you have a job that pays you to surf the internet, what do you expect?
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Old Jan 3, 2011 | 02:09 PM
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I thought some were port matched to the heads?

Like some have near perfect rectangles, others taper inwards towards the top?
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Old Jan 3, 2011 | 02:31 PM
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Originally Posted by happysem
I thought some were port matched to the heads?

Like some have near perfect rectangles, others taper inwards towards the top?
Just like heads, the manifolds can have small differences in the ports between years. I also remember reading about some flowing slightly better and more optimally shaped ports then others.

Nothing I would bother with or worry about though, they are in in essence the same - except for the 93's as Ramair mentioned .
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Old Jan 3, 2011 | 02:32 PM
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Yes, they did have different casting numbers, but the port differences are so small it doesn't really matter.
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Old Jan 3, 2011 | 02:36 PM
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I've got a low milage intake off my old 94 z28 I'd be willing to part with and sell you at a good price.
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Old Jan 3, 2011 | 04:22 PM
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So how about this then, I got the intake and now im looking at all the crud built up inside. Is there a way to treat the intake to clean all the carbon/crud build up inside of it?
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Old Jan 3, 2011 | 04:42 PM
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Mine is crud free Got your PM...no worries and your welcome for the offer.
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Old Jan 3, 2011 | 05:11 PM
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Find a local radiator shop and see if they can hot tank it for you
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Old Jan 3, 2011 | 05:29 PM
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Originally Posted by *02WS6TURK*
Mine is crud free Got your PM...no worries and your welcome for the offer.
You know what, thats just my luck to. I didn't get your pm until after i had already come back from pulling it.

Thanks for the hot tank tip. Ill search around.
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Old Jan 3, 2011 | 05:32 PM
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One more question, is there a shop that is known for porting LT1 intakes? Id like to get this ported and powdercoated so when i pull my stock intake to fix the oil leak i can replace it with this one.
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Old Jan 3, 2011 | 05:34 PM
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There isn't much benefit in porting the stock intake, unless you're putting on a 58mm throttle body, and in that case you can port the manifold yourself with a Dremel.
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Old Jan 3, 2011 | 05:45 PM
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Originally Posted by happysem
I thought some were port matched to the heads?

Like some have near perfect rectangles, others taper inwards towards the top?

The rectangular ones are actually bigger than the head port the tapered ones actually match better and are preferred by "as cast" racers.
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Old Jan 3, 2011 | 05:47 PM
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Ok cool, i didn't know. So the only porting other then the TB bores would be if one was to port match there heads then right?
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