I have a couple of questions about our crankshafts. First, I've read about the duracast crankshafts in the earlier Supercoupes. Some say Ford changed to the forged cranks during the 89 model year, and some say they changed during the 90 model year. I have one of the later 89 models (manufactured in May 1989) and really want to know which I have. I plan on switching if it's a duracast because I'll be doing major mods to the car soon. Can anyone give me a definite answer on this, preferably the month and year they changed?
Secondly, as it says in my sig, my LX has a broken crankshaft. I would like to put a Supercoupe crank in to strengthen the engine a little. I've already got one lined out. The problem is that I heard the main journals on the Supercoupe cranks were slightly smaller so that you couldn't accidentally put a cast crank in an SC block. Is it possible to do the opposite? I'd rather not have to buy a whole SC shortblock when I have a perfectly good NA block. I don't plan on putting heavy mods on the LX anyway, but having sturdier internals would give me more peace of mind.
Secondly, as it says in my sig, my LX has a broken crankshaft. I would like to put a Supercoupe crank in to strengthen the engine a little. I've already got one lined out. The problem is that I heard the main journals on the Supercoupe cranks were slightly smaller so that you couldn't accidentally put a cast crank in an SC block. Is it possible to do the opposite? I'd rather not have to buy a whole SC shortblock when I have a perfectly good NA block. I don't plan on putting heavy mods on the LX anyway, but having sturdier internals would give me more peace of mind.