Harmonic Balancer for 340

Discussion in 'Small Block Tech' started by Double6skylark, Sep 13, 2018.

  1. Double6skylark

    Double6skylark Well-Known Member

    Does anyone know if the harmonic balancer for a SBB 350 would work on a SBB 340?
    Still working on building a 340 and trying to swap over parts from my tired 300 but unfortunately the balancer on the 300 is looking pretty tired.
  2. Jim Blackwood

    Jim Blackwood Well-Known Member

    You might have to get it re-balanced, there's a little difference in the weight of the rods. Actually I think the 350 is closer to the 340 than the 300 is in terms of the rotating assembly as the stroke is the same and the cranks are interchangeable.

    Last edited: Sep 13, 2018
    Double6skylark likes this.
  3. Double6skylark

    Double6skylark Well-Known Member

    Thanks @Jim Blackwood
    I think I'm going to look at buying a new one but not having much luck. Any ideas?
  4. alec296

    alec296 i need another buick

    Damper dudes can rebuild them .
    Double6skylark likes this.
  5. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    TA2025 new balancer for the 64-81 300-340-350 engines.

    Double6skylark likes this.
  6. GS Spoken Here

    GS Spoken Here Well-Known Member

    Have a GM NOS 350 one, $200.00 plus shipping, if you are interested I can post pictures.
  7. Double6skylark

    Double6skylark Well-Known Member

  8. Double6skylark

    Double6skylark Well-Known Member

    Thanks everyone, I've got one on order.

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