I have a 71 parts car that I pulles the motor & trans out of. I also have a 75 that I'm putting on the road. ( someday LOL ) Just what to know how to tell one from the other. Thanks, Jeff.
On the 200 I6 the starter is mounted higher up on the side of the engine than it is on the 250 I6, there are other way to tell also but that's the easy way, the other way has something to do with the freeze plugs I think. I'm sure if I am wrong someone will correct me.
You are right about looking where the starter is. High mount for the smaller 6's and low mount with a 302 style bellhousing is a 250. Also, look to see if the engine tag is still attached to the coil mount. Early Mustang 200's had different freeze plugs but as far as I know, the later (Maverick years of 200-250) both had 5 freeze plugs.
"All 144/170/200ci engines used a 3 bolt water pump, while the 250ci six utilized a 4 bolt water pump"
Right on time and appreciate the information. Finally had the opportunity to crank the six in the 1977 Comet yesterday since purchase in May. It was last registered in 1999 and the owners stated that it would start. Uh-huh... It did crank, but would not start. After installing new spark plugs, rotor cap, rotor, battery, battery terminal clamps, a can of carberator cleaner and a can of starter fluid down the throat, it came to life. Let it settle itself for about 15 minutes, then drove it down the road at 70mph. Could have taken a nap 0-70... Was going to pose the question when I happened to notice this. Darkness prevented the check last night, but thanks! So, all of my "Toys for Retirement" now run, unfortunately I won't see retirement for another 12 years or so.
Didn't the 200 starters have three bolts and the 250 had two? I also believe the 200 had the ring gear welded to the torque converter and the 250 had a 'normal' flywheel. The 250 is physically wider than the 200 (between mounts and width of oil pan) Ask me how I know... The exhaust pipe openings on the manifolds are different size too IIRC, 1-7/8" and 2".
The tip about the starters is very easy to see. Thanks Moneymaker 1 and Acornridgeman I have a 200-6 from a 71 maverick and a 250-6 from???? 200 starter is bolted high, by the block and the 250 is bolted down by the oil pan. Like a 289-302.
The mid '79 and up 200's have a low mount starter. Counting the water pump bolts is still the best way to know.