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  • #1

    would i be able to

    the question is. is there anything out there that would fit the 3100/3400 platform that anyone knows of or would these fit w/o screwing anything up
    sorry its these SLP V6 1.8 ratio rocker arm package
    under the valvetrain section
    http://www.ls1gtoperformance.com/GrandPrix/GPcatalog.html
    sigpic
    99 Grand Am GT
    3400/3500 -Solid trans mount--TCE 65mm T-body---85mm LS2 maf---1 1/4' TCE intake spacers with 3400 upper--SLP Catback with flowmaster 80--TOG headers
    Modded 3400 lifters with LT1 springs---Comp Cams 26986 Springs
    1357 cam 227 233 .050 dur     515 515 lift 112 lsa
    15.232@88.85mph on stock 3400---New time to come

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  • #2
    No that will not work.
    1993 EXT. CAB, 3.4L V6 TBI, 5spd manual. Sonoma
    1990 4Door, 3.2L V6 TBI, 5spd manual. 4X4. Trooper
    Because... I am, CANADIAN

    Comment

    • #3
      ok thanks thats all i needed to know. i just stumbled across these when i was looking around on the net today. would you know if there is anything out there like this for the 3.1/3.4
      sigpic
      99 Grand Am GT
      3400/3500 -Solid trans mount--TCE 65mm T-body---85mm LS2 maf---1 1/4' TCE intake spacers with 3400 upper--SLP Catback with flowmaster 80--TOG headers
      Modded 3400 lifters with LT1 springs---Comp Cams 26986 Springs
      1357 cam 227 233 .050 dur       515 515 lift 112 lsa
      15.232@88.85mph on stock 3400---New time to come

      Comment

      • #4
        You can get 1.6 rockers, but thats as big as they go. But most of the 3X00's had 1.6's from the factory anyways.

        Shawn
        90 Grand Prix STE 3.1 Intercooled Turbo-3100 Hybrid
        K&N, Magnaflows, No Cat, Chip, FFP Pulley, H260 Cam, No EGR.
        99 Grand Prix GT
        K&N|No Cat/ubend/res|160 tstat|shift kit|UD ALT & WP Pulleys|XP Cam|Stage 2 I/C|Pacesetters|MPS|2.9"|Custom PCM
        12.665 @ 110.44 w/2.018 60', STREET TIRES, PUMP GAS!

        Comment

        • #5
          i know guys have used sbc roller rockers (they are pretty well the same). they make them from break in 1.3:1, 1.52:1, 1.6:1 and even 1.7:1. im not sure if its possible, but you may be able to use 1.7:1 rockers.

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          • #6
            does it matter on the sbc chevy size or just any 1.7 roller rocker for a sbc
            sigpic
            99 Grand Am GT
            3400/3500 -Solid trans mount--TCE 65mm T-body---85mm LS2 maf---1 1/4' TCE intake spacers with 3400 upper--SLP Catback with flowmaster 80--TOG headers
            Modded 3400 lifters with LT1 springs---Comp Cams 26986 Springs
            1357 cam 227 233 .050 dur             515 515 lift 112 lsa
            15.232@88.85mph on stock 3400---New time to come

            Comment

            • #7
              It matters. Old 660's with ball picot rockers could use any SBC rocker in combination witht eh stock pivot ball and go from there. Also any small block stud mounted rocker can be used when you get to correct conversion studs.

              But pushing the ratio limits may get you into valvetrain geometry and clearance issues. On 3400 you should be able to bump to a 1.7. But on a gen I or II jumping from 1.5 to 1.7 needs some care
              1993 EXT. CAB, 3.4L V6 TBI, 5spd manual. Sonoma
              1990 4Door, 3.2L V6 TBI, 5spd manual. 4X4. Trooper
              Because... I am, CANADIAN

              Comment

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