IF HES SWAPPING THE ENGINE, THEN HE IS SWAPPING THE TRANS.
he asked what gauges would work, a speedometer is a gauge, and the gear on the end of the cable will be different for the new trans.
and yes, he could swap new senders into the engine, but he needs to get the senders for the engine he is putting in.
and efi takes same wiring as carb..
You're wrong here bud, All Ford transmissions used the same speedo cable connections. No matter the transmission. Now, some have different locations for the speedo hole in the tail (driversside vs passengerside) and that makes a difference in whether or not the speedo will work Plug in the wrong side and the odometer will run backwards. And there's a difference between auto and manual transmission cable gears, but either will operate off the tailshaft gear. The gauge wiring for the EFI will work regardless of engine induction type, so you're half wrong here.



