305 tbi to 383 carb - Third Generation F-Body Message Boards

marballfire · 08-13-2007, 06:00 PM

I just bought a 383 to do a swap for my tbi 305. The 383 is a carburated engine and doesn't need the computer and electric fuel pump. I just wanna know how difficult it would be to do the swap. The 383 is a complete engine, ignition, fuel pump, alternator, oil pump, radiator, 750 cfm carb. The engine ran great in the donor car, but i don't know much about bypassing all the computer stuff the car currently uses. Any help is greatly appreciated. Thanks

five7kid · 08-13-2007, 06:40 PM

There is a tech article linked from the thirdgen.org homepage about converting from EFI to carb (the link is also in the "read me" sticky at the top of the Carburetor forum).

marballfire · 08-15-2007, 06:34 PM

that article helped out alot...thanks. can anyone tell me if the tach and speedo are electrically controlled or mechanically?

five7kid · 08-16-2007, 12:59 AM

The tach is electronic.

The speedometer varied. If there is a cable going from your transmission tailshaft, it's mechanical. If wires, it's electronic.