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470 Stroker build

Discussion in 'Street/strip 400/430/455' started by Canadian GS 350, Jul 24, 2022.

  1. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Mark,
    I found the spec, i will tighten this up. Just ordered these thrust washers in various thicknesses. Pressure spring is changed. The Transgo orange spring is much stiffer than a stock relief spring. Restriction is in the converter charge circuit as well. IMG_5382.jpeg IMG_5380.jpeg
     
    Mark Demko and avmechanic like this.
  2. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Mark, after following the shop manual end play procedure, but input and output shafts are within spec. At least I know what it is now. Installed the 0.125 restriction in the converter charge circuit. IMG_5418.jpeg
     

    Attached Files:

    Dadrider and avmechanic like this.
  3. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Finally going back together. Block washed, Crank has been polished, with extra attention to the thrust surfaces. New bearings as well. All were in nice condition, but had to buy full set anyways to replace the thrust. IMG_5782.jpeg
     
  4. Canadian GS 350

    Canadian GS 350 Well-Known Member

    My machinist recommended this mod to the thrust bearing on the tranni side of the thrust. A 0.030-0.040 chamfer on the upper bearing shell at the parting line. Took a couple strokes using a fine file, then wash the bearing for install. Trying to prevent reoccurrence of thrust bearing failure.
     

    Attached Files:

    avmechanic likes this.
  5. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Cam degreed. In at 107.5 ICL IMG_5801.jpeg
     
  6. Canadian GS 350

    Canadian GS 350 Well-Known Member

  7. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Pistons back in. IMG_5863.jpeg
     
    Dadrider, FireRedGS455 and Mark Demko like this.
  8. BUQUICK

    BUQUICK I'm your huckleberry.


    Looking good!

    Now get that wrapped up and come assemble this 470 that I've been tripping over for several years in my garage. All machined and ready to assemble.
     
  9. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Buquick, Ill get right on it. I’ll warn you, im super slow!
     
    Dadrider likes this.
  10. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Heads on. Taking a break for a few days now. IMG_5867.jpeg
     
    FireRedGS455, jr_, Mark Demko and 2 others like this.
  11. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Installed the pressure relief valve in the lower cooler line to prevent thrust bearing failure reoccurrence It’s probably overkill, but for $175 usd from ATFSpeed its cheap insurance. Currently set at 80 psi with compressed air. Will install a gauge when i get back to driving in the spring. IMG_5916.jpeg
     
    avmechanic likes this.
  12. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Back together. Lots of time before spring to reinstall and get running. IMG_5936.jpeg
     
    avmechanic, jr_, Ol blue and 2 others like this.
  13. 73Stage2

    73Stage2 Well-Known Member

    Looking good
     
  14. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Making some headway. Nice putting on parts that you have already test fit previously. IMG_6184.jpeg
     
    DaWildcat, Dadrider, 71staged and 7 others like this.
  15. Canadian GS 350

    Canadian GS 350 Well-Known Member

    A couple more hours work, shes ready to prime and fire up. IMG_6199.jpeg
     
  16. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Im back in gear! Engine fired up instantly, sounds great. Will do the tranni pressures on the weekend. IMG_6211.jpeg
     
  17. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Im back on the road. Tranni pressures and cooler line pressures looking good. Sure fun spinning tires at will at 30 mph! IMG_6428.jpeg
     
  18. 73Stage2

    73Stage2 Well-Known Member

    Good to see you got it sorted. Nice car and I’m sure a thrill to drive.
     
  19. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Got out to the Mission Raceway Street legals last night. Car ran great - 11.47 at 117. Made my goal of mid 11’s street car with ac. IMG_6751.jpeg
     
    71staged, BUQUICK, 72STAGE1 and 4 others like this.
  20. 73Stage2

    73Stage2 Well-Known Member

    Nice run. You’re hauling ass NA. What tires and converter?
     

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