I need to replace the spark plug wires on 1968 477ci 10 yard dump truck but the auto parts stores don't even show a 477ci in their books. I even tried the Ford dealership but they don't go back that far. Does anyone know where I can find a set or what other engines use spark plug wire sets that would interchange with the 477ci configuration?

 

Any Ford large V8.

429-460 or 352-428. Or Lincoln 430-462.

 

Wires from a FE application will interchange just fine. The 385 series will work but you need to stay below 1973.