Engine Identification
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Engine Identification
I have a big block engine that I pulled out of a 1967 Mustang GT. The front of the block has 352 stamped on it. I was told that this is the same block for a 352,390, and a 428 engine. Is this true? How can I identify this motor. It has 2t stamped on the throw of the crankshaft. I was told that this number would tell me the size. Can anyone tell me what size it is by this number. If not, can anyone tell me how to identify this motor...thanks Bob
Cargo Master
Joined: Aug 2000
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From: SW Michigan
Engine Identification
Bob, if it is the original engine in the mustang GT it will be the 390. You are right that the FEs all look alike. It could also be that some hot rodder put it in the stang, in which case it could be anything. If you have a 390 it will have a 4.05 bore and a 3.78 stroke. A 428 has a 4.13 bore and a 3.98 stroke. A 352 has a 4.00 bore and 3.5 stroke. Yes the crank ##s can tell you what it is, but with my memory I'll have to look it up in the book, when I find the book. I do remember that the 428 cranks have ##s of 1U, 1UA and 1UB, so you already know you don't have that. Many of us think FEs are absolutely wonderful and wouldn't want anything else. What are you planning to put this engine into ? DF
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Engine Identification
If it turns out to be a 390 I will probably rebuild it and put it back in my stang. if its a 352 I will probably try to trade it for a 428 or a 351w..I am looking to make about 500hp with an engine for my stang..
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Engine Identification
I am affraid that you may be disappointed with your engine. According to "How to rebuild you Big-Block Ford Engines", your 2T crank would have come from a 68 to 76 360 engine. The stroke on this crank would be 3.5 as opposed to 3.784 on a 390 crank. The good news is that the block likely has the same bore as a 390. If I am not mistaken, you should be able to make the engine into a 390 by swapping in a 390 crank.
Good Luck
B.B.
Good Luck
B.B.
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Engine Identification
I have jsut had a quick rethink. Just changing the crank would build a grenade. The 360 uses long rods (6.540 in), while the 390 uses short rods (6.488 in). All measurements taken centre to centre. Also the pistons have major differences. The 360 piston would have a full skirt at the bottom, while the 390 would have a slipper skirt (it comes more or less to a point on each side). I suspect the slipper skirt is needed due to the increased stroke. Another piston difference is that the compression height on a 360 is significantly higher than on a 390. Sooooo..... all you have to do is drop in a crank, a set of rods, a set of pistons,... etc, etc, and you would have a 390. Mind you, if you are looking at producing 500hp, you likely would be looking at changing most of these items anyway. The good news is that the heads will fit, as will the manifolds. Again, if you are looking at 500hp, these will likely be changed anyway.
B.B.
B.B.
More Turbo
Joined: Jan 2000
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From: Pasadena US
Engine Identification
pistons are no problem since you are rebuilding anyway. If it is a 3.5 crank, when you trade it in, get a 390 crank. usually people trade in cranks when it's time for a rebuild. All you will need to get are 390/428 rods. You can get a set for $75 or so usually. Just have the bore open to 4.050 and buy standard size pistons.
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Engine Identification
I am uncertain how you would "open up" the bore to 4.050". If the engine is a 360, and the crank casting would seem to indicate that it is, you would already have a 4.050 bore. I would think that you are going to need over size pistons and not a set of standard size pistons. If the engine was a true 352, then you could open up the bore from 4.000 to 4.050. Based on the crank I think this is a 360. What is the block casting number? This would not confirm a 360, but it would rule out a 352.
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Engine Identification
Thanks for the good information.After doing research the engine turns out to be a 352.I measured the stroke and it turns out to be 3.5...whoever had this engine before me spent a couple thousand dollars fixing it up..I guess since I want an engine that will produce 500hp I am going to buy a 428 stroke kit and fix this engine up, since i can still use the same heads and intake..they are already new hi-po items..thanks bob
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More Turbo
Joined: Jan 2000
Posts: 507
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From: Pasadena US
Engine Identification
if you bore it to a 390 bore and add a 428 crank you will have a 410, ala Mercury. Make sure you get the correct pistons and rods. Expect to pay big $$ for 428 cranks. They are rare!
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