Ford Repair: 1993 mustang 3.8 v-6 engine swap, holley carbs, holley carb


Question
Is it possible (or how difficult) would it be to swap the 3.8 v6 for an early model carb type engine such as a 351, however i am most interested in gathering facts on the reality of a big block, preferably a 429 scj

Answer
Robert-

  For a '93 Mustang, the possibilities are almost endless.  That said, I wouldn't go any larger than a 351.  You could always stroke the 351 up to about 408c.i.d (safely) and you'll make major power.  A big block just isn't practical unless it's a strip-only car.  You might as well just stick a boat anchor under your hood.  Your handling will suffer and your front to rear weight ratio will go down the drain due to the excessive weight on the front end.  As for the swap itself, there's a ton of swap kits available from many retailers.  If you go carb there's also a few wiring mods to make, mainly to the ignition since you'll need to replace the factory stuff with a stand-alone ignition like MSD or Crane and still get the tach to work (if your car has a tach).  You'll also need to replace or switch the tach in the car to V8 configuration (this isn't always an option...it varies from year to year).  An easier way out would be to simply install an aftermarket tach.  Also keep in mind that a carbed motor won't support any transmission besides a C4 since AODs use TV (throttle valve) linkages that won't work unless you've got a Holley carb and you get a TV linkage adapter from Sacramento Mustang (they only work with Holley carbs, though).  An AODE is completely out of the picture unless you want a stand-alone processor to control it.  All in all it's a fairly basic swap once you get the usual gremlins out of the way (every swap will hit a snag or two).  Hope this helps.

Steve