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Technical Torque converter selection

Discussion in 'The Hokey Ass Message Board' started by cretin, Nov 5, 2017.

  1. cretin
    Joined: Oct 10, 2006
    Posts: 2,954

    cretin
    Member

    Hey guys,
    Although I haven't posted here, I've been working on getting the '54 Chevy frame ready for powdercoating. While it's at powdercoat, I'm trying to get everything ready for assembly of the frame when it comes back, so I can assemble, and plumb, etc. So, it will be time to connect the engine and trans together for real. I need a torque converter, but know nothing about them, so I need some advice.

    As stated, the car is a '54 chevy. I have a 350 crate engine for it that I have left stock internally. It is the 350 HO and is rated at 330hp, with a max rpm of 5,500. I am running a 4L60E behind it. The car is a custom, and will be put back into service as my daily driver, so good street characteristics are important. So, what would be a good torque converter for my application?
     
    chryslerfan55 likes this.
  2. mohead1
    Joined: Jan 18, 2013
    Posts: 592

    mohead1
    Member

    Pick the company whose converter you want. Tell them the engine and trans details, rear gearing, weight of car, intended purpose of car. They will recommend and build what you need or tell you what off the shelf converter to use. It will be mild, prob 2200-2600 range max
     
    Hollywood-East and tfeverfred like this.
  3. As your O/D trans has a deep 1st gear and you wish for good street characteristics, my experience says range of 2-2,200 stall.............as your O/D will likely provide engine rpm of 2,000 @ 70 mph, this converter range will also be minimal slip then and help with ATF heat control..........
     
  4. southcross2631
    Joined: Jan 20, 2013
    Posts: 4,414

    southcross2631
    Member

    Let me recommend Alan Pope racing torque convertors. He has been doing my stuff for years.
    He is in Callahan, Florida. 904-845-4767.
     

  5. No good reason to do any more than this, that I can see.
     
  6. Blues4U
    Joined: Oct 1, 2015
    Posts: 5,686

    Blues4U
    Member
    from So Cal

    Yeah, if you want to minimize heat in the trans at cruising speed you'll want the converter to be fully engaged by then. If cruising RPM is 2000 for instance, than you'll want the stall speed lower than that. With a low range 1st gear in a 5 speed trans, in a daily driver street oriented car you don't need, or want, a higher stall speed.
     
  7. squirrel
    Joined: Sep 23, 2004
    Posts: 49,263

    squirrel
    Member

    cam specs:


    Hydraulic flat tappet
    Duration @ .050" Lift( Deg): Intake: 212 / Exhaust: 222
    Maximum Lift (in) W/ 1.5 Rocker: Intake: .435 / Exhaust: .460
    Lobe Centerline ( deg): 112.5
    Technical Notes: Used in 350 HO and CT350 engines

    sounds like these guys are right...2000-2200 would be right where you want to be with this engine
     
  8. All true, but we're also talking about a lock up trans and converter here.
     
    Blues4U likes this.
  9. cretin
    Joined: Oct 10, 2006
    Posts: 2,954

    cretin
    Member

    Cool. Thanks guys.
     
  10. Blues4U
    Joined: Oct 1, 2015
    Posts: 5,686

    Blues4U
    Member
    from So Cal

    Good point Mark, thanks for clarifying
     

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