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  1. 406 sbc stock crankshaft nitrous?

    Recently built a 406 sbc. I ended up getting a nitrous kit for a song after I built it and am debating on whether the motor will hold up or not. I would re-gap the rings but my main concern is the stock crankshaft. Will it hold up or not. Its approx HP is 450 and ft lbs of trq. I-Beam push rods...
  2. New Bottom End?

    Okay so i've got a quick question for yall, i asked my buddy why my motor screams but doesn't seem to put out power and he said it's because i rebuilt the whole top end of the motor but i'm still running the stock bottom end (crank, rods, pistons) with god knows how many miles on it. Small block...
  3. Vortec 5.0 downsize to 4.3

    Hey i have a 305 with busted crankshaft and would like to swap it out for a smaller mor economical V6. Will the engine mounts n electrical, tach, speedomiter oil pressure.. work or how much extra work is it?