Re: E-bay 400 Hardtop
Posted by Owen_Dyneto On 2011/3/23 12:29:28
I thought Packard V8 had answered this for you already, but I'll take another shot at it. There are two ways to tell. First, look at the flat in the front of the engine by the oil filler tube. Stamped # should match the vehicle # on the driver's door jamb if the engine is original to the car. The first 4 digits tell the whole story:
5687 = Packard 400
5697 = Caribbean hartop
5699 = Caribbean convertible
5682 = Patrician sedan
All those are 374 engines.
5662, 5667, 5642, 5647, 5622 are Clipper engines, 352 cubic inches. If the number you find begins with a 55, it's a 1955 engine.
Second way is to locate the Utica Plate engine # on the rear of the block, passenger side, just below the cylinder head - best seen from below. The prefix letter(s) will tell you which series of engine. The Utica prefixes A & AA are for the 5640 chassis; B & BB are for the 5660-70 chassis, C is for the Caribbeans (no CC), and D & DD are for the 5680 models. C and D & DD are 374 engines, the rest are 352 engines. No CC for Caribbeans as it was not available with a conventional flywheel, the double letters (AA, BB, etc) are for engines equipped with a flywheel and not a flex plate.
Note that the various engine #s sometimes appeared in different locations than normal, so you may have to look around a bit. Photo shows the normal location of the Utica engine plant number.
Attach file:
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5687 = Packard 400
5697 = Caribbean hartop
5699 = Caribbean convertible
5682 = Patrician sedan
All those are 374 engines.
5662, 5667, 5642, 5647, 5622 are Clipper engines, 352 cubic inches. If the number you find begins with a 55, it's a 1955 engine.
Second way is to locate the Utica Plate engine # on the rear of the block, passenger side, just below the cylinder head - best seen from below. The prefix letter(s) will tell you which series of engine. The Utica prefixes A & AA are for the 5640 chassis; B & BB are for the 5660-70 chassis, C is for the Caribbeans (no CC), and D & DD are for the 5680 models. C and D & DD are 374 engines, the rest are 352 engines. No CC for Caribbeans as it was not available with a conventional flywheel, the double letters (AA, BB, etc) are for engines equipped with a flywheel and not a flex plate.
Note that the various engine #s sometimes appeared in different locations than normal, so you may have to look around a bit. Photo shows the normal location of the Utica engine plant number.
Attach file:
(78.34 KB)
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