The TBI intake can be swapped out for a carburetor intake. The 4 center bolt holes are drilled at a different angle on the TBI intake, you can either ream out the holes on the carburetor intake or I think they may also make an aftermarket intake to fit. The older V8's had 2 holes for the clutch linkage ball, one right over the oil filter and another a few inches forward. These trucks used the forward hole. Most newer engines do not have the forward hole, some do not even have the boss for it. I have heard of people drilling the hole on newer blocks, but I have never tried it myself. Maybe someone else can tell you more. Your flywheel will not fit the '89 engine, '86 up used the one piece rear seal and has a smaller pattern. Hope that helps.

TruckNut

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