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Carburated Ford 351 Engine Converted To Fuel Injection
After 200,000-plus miles, the 351 engine in the 1990 Ford F-250 pickup on the Allspach Farm, Mt. Pulaski, Ill., needed a major overhaul.
  A number of Allspach family members and employees depend on the pickup which, despite its age, is still in great condition.
  Rather than trade it off, they bought a rebuilt 351 engine that came from an older truck. "It was built in 1976, so it didn't have electronic fuel injection like the one in our 1990 model," says George Allspach.
  "While they changed the injection and ignition on the newer engines, Ford hadn't changed the block itself," he continues. "We were able to salvage the electronics from the worn-out engine and install everything on the older rebuilt engine. We just took the carburetor off the replacement engine. Then, from the 1990 engine, we installed the intake manifold, distributor, water pump, timing chain housing, starter gear, the counterbalanced pulley from the front of the crankshaft, the oil pan and the oil pump. We had to reposition the oil dipstick so it would clear the power brake cylinder. That was probably the trickiest part.
  "Even though the replacement engine was 14 years older than the original, Ford evidently used existing mounting holes in the 351 block and heads when they switched over to electronic injection and ignition. We didn't have to do any machining on the block to fit the manifold and electronics to it," Allspach says.
  The rebuilt 1976 engine runs just like the one that came in the truck. "In fact, it may be a little more fuel efficient than the original," he adds. "It saved us the time and trouble of rebuilding the engine ourselves, and the older rebuilt engine was less expensive than buying a newer rebuilt engine with all the electronics on it."
  "Dad had heard about someone else who had done the same thing, so we were sure it could be done before we bought the engine," Allspach says. "Any competent mechanic could do it."
  Contact: FARM SHOW Followup, George Allspach, Allspach Brothers Farm, 1300 50th St., Mt. Pulaski, Ill. 62548 (217 792-5231).

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2002 - Volume #26, Issue #3