How to tell difference between LS1 and LS6 intake?

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06-07-2008, 12:54 PM

#21

5SiX1

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Quote:

Originally Posted by mikeljohnson03

Well what i was really trying to say is wouldn`t it be easier and cheaper to upgrade a 98-00 just because it already has the bigger cam, seens as how well ive never done a cam swap so i don`t know how pricey or how much time it takes. Or do the 2 different cams actually make a big difference i guess is what i`m really trying to ask.

and what everyone else is trying to say is that the cam and intake aren't the only differences. and that the 01-02 is a slightly better block.

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06-08-2008, 01:05 AM

#22

mikeljohnson03

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Quote:

Originally Posted by 5SiX1

and what everyone else is trying to say is that the cam and intake aren't the only differences. and that the 01-02 is a slightly better block.

Ok i understand that much. But what are the specs on the different cams please?

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06-08-2008, 02:02 AM

#23

Sunset'01Z

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the difference isnt really even worth mentioning.

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06-08-2008, 07:10 AM

#24

Adam86

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Quote:

98's had the worst flowing heads of all years.

I'm sure this has been asked elsewhere but anyways... Would it be worth installing a pair of 01-02 heads on my 98 if I could find them somewhere for dirt cheap? Or should I just go aftermarket?

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06-08-2008, 07:17 AM

#25

Slvr00Bird

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Here's an easy way to check without pulling the intake off, etc. etc. etc..

It is a part number on the driver side, easy to see.
97-00 LS1 Manifold #12556333
01-02 LS6 Manifold #12561182
03+ #12573572

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06-08-2008, 07:28 AM

#26

spy2520

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Quote:

Originally Posted by Adam86

I'm sure this has been asked elsewhere but anyways... Would it be worth installing a pair of 01-02 heads on my 98 if I could find them somewhere for dirt cheap? Or should I just go aftermarket?

or stock ls6 heads. thats another idea.

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06-08-2008, 07:30 AM

#27

spy2520

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And for the record, i've seen several 01-02s run 13.0 and better bone stock. Not so much for the 98-00s. So the minor differences dont really balance out.

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