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stage 2.5 5.3L heads and TV2 cam

This is a discussion on stage 2.5 5.3L heads and TV2 cam within the Internal Engine forums, part of the LSx Technical Help Section category; Has anyone on here ran this combo and if so did you have any problems with the higher compression? wondering ...

  1. #1
    Junior Member black2kSS's Avatar
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    stage 2.5 5.3L heads and TV2 cam

    Has anyone on here ran this combo and if so did you have any problems with the higher compression? wondering if pump gas is ok for this combo (93 near me)? I also understand that a tune would be a must after this so all timing and fuel adjustments would be made then. Just curious to hear any real world reviews.

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

    Quote Originally Posted by black2kSS View Post
    Has anyone on here ran this combo and if so did you have any problems with the higher compression? wondering if pump gas is ok for this combo (93 near me)? I also understand that a tune would be a must after this so all timing and fuel adjustments would be made then. Just curious to hear any real world reviews.
    I ran this exact combo before I threw a rod due to an unrelated issue. My heads were milled (to reduce the combustion chamber size) and my compression was just shy of 12:1. I'm 100% confident you'll be fine with non-milled heads.

    What intake manifold and injectors are you going to be running?
    2000 Pontiac Trans Am WS6 M6: 427ci LS3, Built T56, Moser 9" w/ 4.11 Gearing, Full Suspension, and 6-point Cage.
    2000 Pontiac Grand Prix GTP: Twincharged w/ a T67 Turbocharger
    2007 Chevrolet 3500 Dually Duramax: 3" Downpipe, Dual 4" Exhaust, EFILive Tuning

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    Junior Member black2kSS's Avatar
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    i currently am putting ls6 and ported stock TB on for intake. just thinking into the future a little here. is an injector change needed? is there any stock injector that will swap over?

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

    LS6 is a good choice, I was using a FAST90mm and Holley 90mm TB. You'll probably be around 425 rwhp with that setup.

    I was using 38# injectors...not sure if you'll max out the stock injectors, but you'll definitely be close.

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    blah '02 WS6's Avatar
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    Ran it and liked it (GTP stg 2+ heads though).....until I ran a custom grind cam spec'd for my LS6 heads and realized I shorter myself the first time by not getting a proper matched combo tailored to my heads.
    '02 ws6.....mods? nope

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