blueprinting is going through the motor and checking and double-checking all the tolerances and specifications, making sure every measurement is correct down to the thousandths, or even further in some cases. i dont see any reason you need a new block if the old one has been well maintained. i tore mine apart at 109k for a rear main seal leak, and everything looked factory fresh. im talking could still see the factory hone, zero knicks or scratches anywhere. with the minimal amount of mods your motor has seen, its my opinion a new block would be money best spent otherwise. MM also brought up a good point about the thermal cycling. just my two cents, hope it helps you out, nick
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1990lx coupe, 302, gt40p heads, wolv 1087 cam, 1.7rr's, 65mm tb, 75mm maf, comp box on top of cobra lower, anderson ford pms, full exhaust, drag type susp. and 3.55's. traps 105mph
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