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  1. C

    Vortec head flatness

    Hi! These spots are both low so I’m thinking of going with RTV when assembling. I’ve checked with 3 different rulers (metal) and they show low spots, over the suggested tolerance and worst measurement is .010 off.
  2. C

    Vortec head flatness

    Hi! Pulled my heads off my L31 Vortec (1996) and when checking flatness of the heads i noticed that one of the heads was off in tolerance, approx. .010 was measured and from what I´ve read online this should be max .004. But this off tolerance is specific in these areas, so not along the whole...
  3. C

    350 Swap, wiring

    Oh and the motor is going in to an 1989 TBI K1500 4x4
  4. C

    350 Swap, wiring

    Hi, So i got a hold of a 1996 5.7 Vortec together with the 4L60e and transfer case so I´m doing a complete swap but I stumbled on the wiring stuff and thought maybe I could get some help/input: I have the Black box and engine fusebox together with the wiring for the motor,transmission and...
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    Compression test / Cylinder leak test

    Hi and thanks for all the reply’s! Yes the engine isn’t installed in my truck, it’s a while before I’m there because I’m rebuilding the whole car from bottom and up, the car is in molecules but it’s a slow process especially when I live in Sweden and getting ahold of parts isn’t the easiest on...
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    Compression test / Cylinder leak test

    Exactly, it’s an used engine. I haven’t installed it in the OBS yet but because the compression numbers were fine I thinking of just running it as it is... in the plans of changing the cam for a Hotcam as well before installing it
  7. C

    Compression test / Cylinder leak test

    Hi! I bought an vortec engine for my 89 OBS, thinking that the vortec should be a better option then the old TBI. But yesterday I did an compression test on all 8 cylinders and had good readings, approx. 175psi to 195 psi. Even though the reading were good i thought i´d check the cylinders...

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