It is possible to go from an earlier engine to a late trans- mission or vice-versa by swapping bellhousings, input shafts, pumps, and torque converters, but that will run you $700-$1,000. Fortunately, Pace Performance stocked this GMP adapter kit (PN 19154766) for $206.95 that allows us to use our later LSx 4L60E with our ’94 LT-1. There is also a kit that allows use of the earlier 4L60E with an LS engine (PN 12563532) that comes in under $100 even after adding bolts. So unless you have to have your transmission completely rebuilt anyway, it is probably going to be less expensive to use one of the two adapter kits if you do grab the wrong transmission.
