New 88 Fiero GT owner, looking for suggestions. (Page 2/2) Notorio MAR 26, 11:01 PM Ike, since you want to fix the 2.8 while you plan for the 300HP adventure, I'd suggest the following relatively cheap steps, which you can do with the motor in the car, if you don't mind working on your back, front wheels on ramps, back jacked up on the frame: 1) Get a crank from someone on the forum here (perhaps for free or low $ with paying for shipping) 2) Replace the main and rod bearings and the oil pump 3) Hone cylinders and get new rings 4) Port the exhaust manifolds 5) Port and polish the cylinder heads, replace valve stem seals 6) Replace 1.5 rockers with 1.6 I'd also consider replacing the water pump and timing chain while you are at it. These leaves the original cam and bearings in place, since you can't get that out with the motor in the car. These modest updates really woke up my stock 2.8L with 90K miles on it. olejoedad MAR 27, 11:56 AM To answer your question about electrical wiring work on a 3.4 swap - there is none. It uses the stock Fiero wiring harness and ECU. You will need to get the ECU retuned for optimal results. BillS MAR 29, 12:01 PM I've done it both ways - built a custom 3.1 for turbo (the 3.4 wasn't easily available back when I did it) and got some nice added torque even before the turbo was fitted. Also built up a 3.4 to around 190 bhp to put in one of my little British sports cars. That would be easy to do for the Fiero application. jelly2m8 MAR 31, 04:06 AM Idk... personally I would let a machine shop rework the bottom end, 2.8's are reliably rebuilt. 3.4 swaps history has shown are a common resale as it doesn't deliver what the owner thought it would.