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  1. Ironworker15

    Lbz Broken crank

    A friend of mine got this complete Lbz with a broken crank for a steal. Upon teardown, we found the crank broken at the 7/8 rod throw. Never saw one break here. Usually , they're broken towards the front of the block. Going to tear it down the rest of the way and check the main journals. What...
  2. Ironworker15

    Injector Hold Downs?

    Yes, I do that on everything I install as well. The injector bolt was installed from the factory 150,000 miles ago. I chased the holes out with a thread chaser(not a tap) and torqued to factory spec with a little 30wt oil. I check torque on them every so often and haven't had one loosen up yet...
  3. Ironworker15

    Mahle Piston Rings.

    The ring pack that came with my Mahle Racecast pistons is part #4075MDK-D, Steel DSL ringset. I know the OEM replacement rings for 01-10 are part number 41909 and have a ductile iron top ring , and the newer style rings part number 42160 and have a stainless steel top ring. I looked in the Mahle...
  4. Ironworker15

    Boost leak tester

    Here's a boost leak tester I made at my shop. 3" 3/8" wall aluminum tubing. 1/4" cap plate with a 1/4 Npt drilled and tapped hole. A couple of fittings from the hardware store. I have a 3" to 4 1/2" boot on it now that allows me to test from the intake horn. That will test for leaks at the...
  5. Ironworker15

    Missing dowel pin

    Installed a trans in my brother's truck a few months ago and am one hundred percent certain I installed BOTH dowel pins as I had to remove them both from the old transmission. He was underneath it today re mounting the transmission dipstick tube as it loosened due to downpipe clearance. He told...
  6. Ironworker15

    Lbz Engine build

    Looking for any recommendations for an engine builder in the Northeast area. I'm currently living in the Boston area of Massachusetts and have had a hard time finding a reputable builder around here. Build list will consist of : Callie's Durastar crank, Brian Crower rods, Mahle Racecast...
  7. Ironworker15

    New to forum

    Just wanted to introduce myself to the forum. My names John and I'm from Pennsylvania originally and now live in Massachusetts. I drive a 2007 Silverado 2500 Lbz. Truck is a work/race truck with 60 overs , a 68mm Stg2R, 10mm Cp3. Stock internals(for now)Limitless Built trans and convertor along...
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