470 assembly started

Discussion in 'Street/strip 400/430/455' started by jr_, Nov 3, 2022.

  1. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

  2. jr_

    jr_ Well-Known Member

    Dang. Looks like this dyno requires a 4 speed flywheel that has been machined to accept the dyno adapter.
     
  3. jr_

    jr_ Well-Known Member

  4. jr_

    jr_ Well-Known Member

    Does anyone have a part number for ignition coil bracket ?
     
  5. john.schaefer77

    john.schaefer77 Well-Known Member

  6. jr_

    jr_ Well-Known Member

    Thanks. Any universal part that would work ?
     
  7. john.schaefer77

    john.schaefer77 Well-Known Member

    Haven't found one that fits nicely. There are a few I have seen for sale on ebay recently and I'm sure a few here.
     
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  8. Brett Slater

    Brett Slater Super Moderator Staff Member

    jr_ and john.schaefer77 like this.
  9. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Jr, if you use an aftermarket coil such as the MSD Blaster 2, it is larger in diameter than a stock AC Delco, use a few washers as spacer to prevent coil bracket from damaging coil as you tighten the bracket to the block. I ran into this with my Blaster 2 coil using the stock bracket.
     
    patwhac, jr_ and FLGS400 like this.
  10. FLGS400

    FLGS400 Gold Level Contributor

    Same here. I had to take the bracket off the motor and use a slightly longer screw, with mine. I did not use any spacers though. Just snugged it up enough to hold the coil still and put the bracket and coil back on together.
     
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  11. jr_

    jr_ Well-Known Member

    Probably going to make a coil bracket for dyno tomorrow. Attached is the fix for flywheel. Pontiac flywheel with centering collar and new holes drilled for alignment.

    C8E9A8BE-DE09-44C2-A7FF-3295BEC5598D.jpeg
     
  12. jr_

    jr_ Well-Known Member

    3391C7A0-954D-4682-B98A-8ACFB9599499.png Custom coil bracket. Should be good enough for tomorrow… fingers crossed.
     
    alaskagn, FLGS400, Tomahawk and 3 others like this.
  13. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Good luck tomorrow! Will be lots of folks interested in the outcome.
     
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  14. jr_

    jr_ Well-Known Member

    Thanks to all for the help along the way! Will keep you guys posted. :)
     
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  15. jr_

    jr_ Well-Known Member

    Broke it in, idle and first short pull sounded good. Fell flat on second pull. Wiped cam.
     
  16. alaskagn

    alaskagn Well-Known Member

    That sucks!!!! :(
     
  17. jr_

    jr_ Well-Known Member

    Definitely sucks! I don’t know who makes the TA flat tappet cam but it came in a comp cam box. Dyno shop said they had a BBC that ate 3 comp cams the other day. Apparently comps quality is no bueno. Need to get a roller set up.
     
  18. FLGS400

    FLGS400 Gold Level Contributor

    That is so disappointing... sorry to hear that.
     
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  19. 73 Stage-1

    73 Stage-1 Dave

    FFS :mad:
     
    Max Damage and jr_ like this.
  20. Stage 2 iron

    Stage 2 iron 480 IRON HEAD STAGE 2

    Dam! Sorry to hear that!
     
    jr_ likes this.

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