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Does anyone know of any issues converting a 2.8 carb engine to a TBI. In replacing the engine in my 88 Jimmy, going to use a 1985 engine that has a carb. (Thanks for the information on the 83) Also will the 88 2.8 oil pan bolt up to the 85?
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If the body you're putting it in had a tbi you should be ok as you already have an electric pump and electrics for it. The '85 has a fuel pump which will have to be blocked off. The '88 pan won't work. The '85 engine was no different than the '83, if you mean the crank. Crank got stronger in '86 with a one piece seal. Read some of the "Family Tree" docs and wikipedia has some good evolution material (not creational, lol).Last edited by Ray Hamilton; 08-05-2007, 03:02 PM.'86 S10 Blazer 4WD, '87 2.8 with 3.1 crank and pistons, A.R.I. "Stage 2 Cam", Iron Heads with stiffer springs, Holley TBI, Manifold bored to fit the TBI Base(4.3 size), Fiero Covers, MSD Coil, DynoMax Muffler and 2.5 Tailpipe, no cat, Auburn Limited Slip, 3.73 final Drive. 700R. '85 Fiero GT 3.4 Hybrid, relieved top intake and exhaust, 57mm TB, Auto. 3.06 final drive.
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