Engine Swap Wiring Issues

[Spider1977]

Hello everyone,

I am doing an engine swap on my 1977 Fiat Spider. The engine I am putting in to replace the 77' engine is a from a 76' Spider. On the 1976 engine, the Alternator is mounted on the passenger side of the engine; versus on the 77' engine the Alternator is mounted on the driver side of the engine. Any suggestions to get around the wiring harness issues? The 77' engine has a stud coming out of the engine block(where the bracket for the Alternator is mounted), looking at the same side on the 1976 engine, there is no hole for a stud. How hard would it be to drill/ tap a hole in the block for the stud? Any other suggestions are greatly appreciated!

Andrew

[spider2081]

I have never performed this engine swap. So others may have another opinion. I would leave the 76 alternator where it is and lengthen the existing alternator wires to reach the passenger side of the car, I would route the wires behind the engine and secure the to the fire wall as tight as possible. for maximum engine clearance.

[Spider1977]

Thank you! that seems to be the most logical way to get around this. Would anyone happen to have a diagram of the wiring for the starter/ alternator. Last thing I need is a wiring nightmare

[davery]

Thank you! that seems to be the most logical way to get around this. Would anyone happen to have a diagram of the wiring for the starter/ alternator. Last thing I need is a wiring nightmare

Should be able to find it here
https://www.mirafiori.com/forum/viewtop ... 49&t=96319

[spider2081]

I forgot to ask are the alternators on the 76 and the 77 engines the same make and model? If not I would use the one off the 77 so the cars wiring is compatible with the alternator.

[Spider1977]

I'm not 100% sure if they are the same, but i did plan on keep the same alternator due to the wiring compatibility. Thanks for your input!