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8.1 build

This is a discussion on 8.1 build within the Internal Engine forums, part of the LSx Technical Help Section category; Has anyone ever seen a GM 8.1L performance build up and put into anything? Any info i can look for ...

  1. #1
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    8.1 build

    Has anyone ever seen a GM 8.1L performance build up and put into anything? Any info i can look for online? I think it would be cool to do

  2. #2
    Sold: LS1 '85 El Camino ls1camino's Avatar
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    2000 Grand Prix GTP
    2000 Trans Am WS6 M6

    I know a popular engine right now is the GM crate engine 572ci (9.38L)

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    Yeah, but i see the fun in building something yourself. Though the crates are a good way to go.

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    8.1 your talking about the 496 out of 3/4 ton GM trucks, right?. Yeah I've seen plenty build ups. just about all your good parts heads cam and stroker kits from 454 work on that thing. Tons of potential at very reasonable cost.

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    Quote Originally Posted by cuzimoto View Post
    8.1 your talking about the 496 out of 3/4 ton GM trucks, right?. Yeah I've seen plenty build ups. just about all your good parts heads cam and stroker kits from 454 work on that thing. Tons of potential at very reasonable cost.
    Yep, that would be the one. I got to looking around, and found silverado called coolside II with an 8.1, very cool.

  6. #6
    I have the 8.1 in my 02 crew cab HD 3/4 4x4 . I'm surprized of the power it gives to this tank. I bought it used with 60,000 miles and it has a magnaflow cat back and who knows what has been done to the engine but it sure does move out.

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    MANWHORE TEAM suede's Avatar
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    2000 Trans Am WS.6

    a good 455 is hard to beat tho....

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    Quote Originally Posted by BAD_BRD View Post
    Yep, that would be the one. I got to looking around, and found silverado called coolside II with an 8.1, very cool.
    If I had one of those engines I would build it and put in my wifes third gen

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