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  1. Swapping 4.3L to another 4.3L

    262ci Forum (4.3)
    I’m planning to buy another 4.3l v6 non-vortec for my 91 s10. I’m going to put a new cam, pistons, connecting rods and a TorqMaster SuperCharger since all the bolt patterns are the same. Maybe 50 shot of NOS in the future. How do I make sure the new engine is the same as the old engine? Meaning...
  2. 4.3 vortec parts

    4.3 vortec parts

    What is a fair price for bulk? Block has seized crankshaft but everything else is good.
  3. 99 s10 won’t accelerate in OD or 3rd any tips???

    2.2L - 2nd gen 4-banging
    first off this is my very first forum visit and account. Usually google has lead me right, not this time. 99 s10 2.2l 260k this morning ran fine came to a stop sign and upon acceleration got some sputter, powered through that. Work was 3 mins away. When i parked at worked sounded like my ac...
  4. no oil pressure

    S10 / Sonoma
    so I recently changed the intake manifold gasket and I changed the oil from the milky coffee to fresh oil but my oil pressure gauge doesn't move when I start the truck. It wont move at all. Could this be a gauge issue or an oil pump issue? The truck doesn't over heat anymore and seems to idle...
  5. Idle issues

    S10 / Sonoma
    Hello all! I have a 2003 gmc Sonoma 2.2L with a 5 spd. It runs fine and idles correctly, most of the time. Sometimes (usually on startup) the motor will bog down to about 500-800 rpm then idle back correctly. Other times it will happen when I’m coasting or pulling into neutral. Is this a huge...
  6. P0303 cylinder 3 misfire after engine swap

    262ci Forum (4.3)
    I have a 2000 s10 zr2 blazer with the 4.3L Vortec Only code is P0303 Due to low pressure issues and backfiring I picked up the engine and transmission out of a 80k mile 2000 gmc jimmy and my father and I swapped both in. We replaced all spark plugs and plug wires, new cap and rotor, complete...
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