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Thread: Drill bit and tap size conversion chart

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  1. #1
    Join Date
    Apr 2005
    Location
    Saint John, MO
    Posts
    368
    Hey guys, here's a pretty nice bit/tap size chart. It may be helpful to someone in the future. Next time the instructions of a kit call for very exact drilling or tapping, this chart would be a good guide.

    Drill and Tap Chart

    Print a copy and keep it in your shop!
    Base: 2004 Victory Red Silverado 1500 2WD RCLB, LR4, 4L60E, 3.73, HD Suspension, P245/75R16 Tires
    Mechanical/Performance: Nelson 93 Octane Tune (See Slamma's CarDomain.Com Page for more details)

  2. #2
    Join Date
    Dec 2003
    Posts
    470
    Good info, I don't care what Alton said about you. I knew you were good for something
    2000 Chevy Silverado 2500 ECLB w/6.0 , 4L80E auto, 4.10 G80, K&N, Nelson Dyno Tune, 02 PCM STS TURBO , 44# injectors, IC ,HPTuner and 160* thermo 348 rwhp, 394 rwtq @ 5 psi
    60'=2.241
    1/8=9.352@77.39
    1/4=14.40@ 96.67

  3. #3
    Join Date
    Apr 2005
    Location
    Saint John, MO
    Posts
    368
    Originally posted by jerry2500@Aug 23 2005, 11:17 AM
    Good info, I don't care what Alton said about you. I knew you were good for something
    Yeah, Alton is pretty hard to get along with and always in such poor humor Thought maybe this would help me gain acceptance
    Base: 2004 Victory Red Silverado 1500 2WD RCLB, LR4, 4L60E, 3.73, HD Suspension, P245/75R16 Tires
    Mechanical/Performance: Nelson 93 Octane Tune (See Slamma's CarDomain.Com Page for more details)

  4. #4
    Join Date
    Dec 2003
    Posts
    470
    Don't know what happen to him. Seems like he went off the deep end when he got rid of the turbo truck and got the Radix. Maybe he'll come around after tomorrow when he's back in boost again.
    2000 Chevy Silverado 2500 ECLB w/6.0 , 4L80E auto, 4.10 G80, K&N, Nelson Dyno Tune, 02 PCM STS TURBO , 44# injectors, IC ,HPTuner and 160* thermo 348 rwhp, 394 rwtq @ 5 psi
    60'=2.241
    1/8=9.352@77.39
    1/4=14.40@ 96.67

  5. #5
    Join Date
    Sep 2004
    Posts
    665
    Thanks. I always struggle with this a little bit.
    No more trucks, but this is what I used to have. 2000 GMC Sierra, 6.0L-LQ4, Built 4L60, LS6 Cam, The Other Guys Headers, 3 inch exhaust and 7 chamber flowmaster, 43lb injectors, Nelson Tuning, Drop - 3/4 McGaughys Spindles, Bell Tech Shackles & Hangers. Best time 13.59 @ 106

  6. #6
    Join Date
    May 2005
    Posts
    93
    Cool, thanks. This is better than the one I have at work.
    http://memimage.cardomain.net/member...607_2_full.jpg

    4-6 drop, 18" Centerlines, K&N FIPK, Flowmaster 50's dumped, Transgo HD-2 shift kit, vette servo, billet OD servo and Nelson tuned, 160* T-stat, Eaton posi and 4.10 gears.

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