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Original Message
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| RE: fe id's |
| By Dave Shoe - 01/02/2001 3:22:22 AM; IP 216.243.158.1 |
From the outside they all deceive. The stroke can isolate the crankshaft variables to 352/360, 390, and 410/428, but you've got to dig deeper into the block to differentiate between a 352, 360/390/410, and 428 block. They are all cast differently in the cylinder core area. Heck, there are even standard-duty and heavy-duty variations of the 360/390/410 and 428 block.
A 501 on the front of the block or in the date-code area (see pic) does indicate it might have some reinforcements, but this is not always the case. The 501 block I've posted here has reinforced main webs but standard 390 cylinders. The date code, incidentally reads "6D15" which might mean April 15, 1966 or April 15, 1976. In this case, the "MCC" foundry symbol below it identifies it as a 1976 casting, as I don't think MCC was up and running in 1966.
The only sure-fire block identifier I know of is a large "A" or "C" cast on the block behind the flywheel. This indicates it's one of two types of 428 motors. If it ain't got either of those two letters, it ain't likely a 428. Also, sometimes, you can find "428" cast on the floor of the block inside the center core plugs on each side. The location of the cylinder core identifier varies, but this appears to be the common location. On rarer occasion, a "390" can be seen on the floor in the center hole, indicating it's a 360/390/410 casting.
Good luck. I still have trouble deciphering what block I'm buying before I take it apart. Actually, that mystery is part of the fun of making a purchase, but then, I really don't care what I get, because any of these engines can have really cool "interchange" goodies inside them.
Shoe. |
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