i just looked at the first thread i posted and man i sounded fucking retarded but anyways. im wondering should i use my d15b bottom end or get a z6? i know that they use the same p28 rods but are the pistons the same and its just destroked? oh yeah im planning on busting it so which crack is stronger?







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The true Power is out of a z6. Do not build a d15b7 your wasting time, Not enough trq, or power. If you want 250-300hp. Suggest the z6,with aY8 tranny. I made 208hp, and 190 trq on d15 b7. But not safely... Do not make the same mistake that I did. Not unless you just like to blow things up.

