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Pushrod length- answered my own question :)

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  • #1

    Pushrod length- answered my own question :)

    Inquiring minds must know: Are the push rods from a 3100 w/ non-roller rockers a different length than a 3100 with roller rockers? I always thought the roller rocker arms had shorter (and fatter??) pushrods. But now I'm not so sure. My car just gave me a bunch of work to do, and I'm thinking of installing a set of roller heads I have sitting here. N E help is appreciated
    Brian

    '95 Cutlass Supreme- "The Rig"
    3400 SFI V6, 4T60e
    Comp Cam grind, LS6 valve springs, OBD2 swap, Tuned
    2.5" DP/ 2.5" dual exh/ Magnaflow Cat/ crap mufflers/ 3500 Intake manifold/ 65mm TB
    TGP steering Rack/ 34mm Sway Bar/Vert STB/ KYB GR2's

    '08 Chevy Trailblazer SWB 1LT "Smart Package"- LH6 5.3L V8/4L60e, A4WD
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  • #2
    RE: Pushrod length- answered my own question

    Good news. Just cross referenced Sealed Power pushrods part # RP3330 (intake) RP3331 (exh) 1994-1995 3100 AND for 1996+ 3100! Same pushrods! Might want to put this into the database since I'm sure others may ask this.
    Brian

    '95 Cutlass Supreme- "The Rig"
    3400 SFI V6, 4T60e
    Comp Cam grind, LS6 valve springs, OBD2 swap, Tuned
    2.5" DP/ 2.5" dual exh/ Magnaflow Cat/ crap mufflers/ 3500 Intake manifold/ 65mm TB
    TGP steering Rack/ 34mm Sway Bar/Vert STB/ KYB GR2's

    '08 Chevy Trailblazer SWB 1LT "Smart Package"- LH6 5.3L V8/4L60e, A4WD

    Comment

    • #3
      RE: Pushrod length- answered my own question

      That is kind of odd actually. Because if you do a 3X00 topend swap and keep the rockers with the studs you can use the stock 3.1 pushrods, but if you use the roller fulcrum type stock rockers then you have to change pushrods, so I would think they would be different. Weird.

      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!

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      • #4
        RE: Pushrod length- answered my own question

        Thats what I thought too. But the way it works, the gen-2 pushrods are different than gen-3. I bet it's due to the lifters. The roller lifters are "taller"
        Brian

        '95 Cutlass Supreme- "The Rig"
        3400 SFI V6, 4T60e
        Comp Cam grind, LS6 valve springs, OBD2 swap, Tuned
        2.5" DP/ 2.5" dual exh/ Magnaflow Cat/ crap mufflers/ 3500 Intake manifold/ 65mm TB
        TGP steering Rack/ 34mm Sway Bar/Vert STB/ KYB GR2's

        '08 Chevy Trailblazer SWB 1LT "Smart Package"- LH6 5.3L V8/4L60e, A4WD

        Comment

        • #5
          no diggity

          no doubt
          Brian

          '95 Cutlass Supreme- "The Rig"
          3400 SFI V6, 4T60e
          Comp Cam grind, LS6 valve springs, OBD2 swap, Tuned
          2.5" DP/ 2.5" dual exh/ Magnaflow Cat/ crap mufflers/ 3500 Intake manifold/ 65mm TB
          TGP steering Rack/ 34mm Sway Bar/Vert STB/ KYB GR2's

          '08 Chevy Trailblazer SWB 1LT "Smart Package"- LH6 5.3L V8/4L60e, A4WD

          Comment

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