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  • #1

    Stock Springs

    What do you guys think about using the stock valve springs on a 3400 with a cam that has .490 valve lift? I desperately need to get my 3400 put togeather for the swap, because i blew a head gasket on the 3100. Coming up with the money this fast is a little difficult. The engine will only be revving to about 5700.
    I was going to buy springs, but now i just need a running engine, but i dont wanna use those springs if they are destined to cause problems
    94 Grand Prix
    3400- NX 75 shot, Cammotion cam, S&S headers, and a few more toys
    Tags: None
  • #2
    If it does not bind then go for it but I would keep the revs low.
    1993 EXT. CAB, 3.4L V6 TBI, 5spd manual. Sonoma
    1990 4Door, 3.2L V6 TBI, 5spd manual. 4X4. Trooper
    Because... I am, CANADIAN

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    • #3
      does anyone think i will have problems with valve float at around 6000 rpm with that cam? I am worried about valve float and bind, but i dont think bind is the main problem
      so what im trying to get to is, is it really benificial to me to upgrade springs, or wont i have any problems with using stock?
      94 Grand Prix
      3400- NX 75 shot, Cammotion cam, S&S headers, and a few more toys

      Comment

      • #4
        You will have float for sure. I would not doubt it at all. People have shown flot with stock cams.
        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

        • #5
          springs are cheap i got my ls6 for 70 new
          sigpic

          1993 Cavalier Z24, 3.1/3400 hybrid, crane 272 cam, LS6 springs,port and polish,2.5 exhaust to 80 series flowmaster,solid mounts

          Comment

          • #6
            Originally posted by Syn
            springs are cheap i got my ls6 for 70 new
            ditto.

            I have LS6 springs on my 3100 heads and they work beautifully. I've never seen even a hint of valve float.

            edit: also my dad has LS6 springs on his GTP and spins the engine to 6600rpms with .536" lift and has never seen any valve float at all.

            For what they cost it is good insurance...

            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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            • #7
              thanks for the input, i guess i am going to have to drop the bank and do everything right.
              94 Grand Prix
              3400- NX 75 shot, Cammotion cam, S&S headers, and a few more toys

              Comment

              • #8
                so i got a set of ls-1 springs for real cheap, i hope they are good. do i need to use the ls-1 retainers? or will a new set of 3400 ones work?
                94 Grand Prix
                3400- NX 75 shot, Cammotion cam, S&S headers, and a few more toys

                Comment

                • #9
                  I wanna know this also.






                  Thanks in advance!
                  Lifting my front wheels, one jack at a time.

                  Comment

                  • #10
                    you can use either one.
                    Andy

                    sigpic

                    fastest 1/8: 10.19@ 67.17
                    fastest 1/4: 16.16@ 82.70

                    62mm TB, 1.6 roller tip rockers, Ostrich 2.0, UD pulley, TB heater bypass, K&N, 180* stat, No cat, 99Grand AM dual cooling fans. 4T65E swap FDR 3.69, EP LSD, F.A.S.T. transmission controller, TransGo shift kit.

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                    • #11
                      Even for teh 3.1MPFI I can use the LS1 retainers?
                      Lifting my front wheels, one jack at a time.

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                      • #12
                        Since I kind of pieced my info together, I feel the LS6 spring AND retainers WILL fit with the 2nd Gen 60v6 with no mods done to anything.


                        If this is not correct, please Let ME Know ASAP...
                        Lifting my front wheels, one jack at a time.

                        Comment

                        • #13
                          Originally posted by 1988GTU
                          Since I kind of pieced my info together, I feel the LS6 spring AND retainers WILL fit with the 2nd Gen 60v6 with no mods done to anything.


                          If this is not correct, please Let ME Know ASAP...
                          Yea you should be just fine both Gen II and III use the same install height.
                          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

                          • #14
                            Cool beans, then I'll use my Gen 2 spring seats also.
                            Lifting my front wheels, one jack at a time.

                            Comment

                            • #15
                              to save money you usually keep the v6 retainers and get ls1 shims,idk about on gen 2 heads tho just see how they seat with gen 2 shims.

                              also if i were you and going with that much lift i'd just get the ls2
                              sigpic

                              1993 Cavalier Z24, 3.1/3400 hybrid, crane 272 cam, LS6 springs,port and polish,2.5 exhaust to 80 series flowmaster,solid mounts

                              Comment

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