: How do I identify cadillac motor

07-26-04, 03:21 PM
I am a Ford guy who ran into a Caddy motor(I think) and would like to know how to identify it. I see no numbers on the outside of the block. Please help. Terry

lux hauler
07-26-04, 04:43 PM
Well....the 472 and 500's have a number cast into the rear of the block, just behind the intake, on top of the bellhousing flange. The heads have a number cast under the valve covers (under rockers) or on top of one of the exhaust ports.
If you find those numbers, maybe we can help......check the link below also.

lux hauler
07-26-04, 04:53 PM
A couple quick things that might help identify a 472 or 500........the distributor is in the front and is at an angle towards the drivers side, the stock intake sits very low. the plenum is actually below the intake ports in the head. The firing order is cast into the rear of the intake (1-5-6-3-4-2-7-8), the later model engines ('70(?)-'76) have a heater hose fitting in the back of the passenger side head.......hope this helps some.

07-26-04, 05:23 PM
The casting number is 8218326 on the block, 1486250 on the head. Does this have any value to anyone? The pan is off, oil pump missing, Main cap gone, still turns over.

lux hauler
07-26-04, 06:53 PM
are you sure the last four numbers on the block aren't 6238? I personally, have not seen one of the early (6238) blocks.....I'm just going by what I've read. Supposedly, the early blocks had the heater hose fitting in the block, just below the thermostat housing.
Cadillac did have a 250 head casting......it was an early, small chamber head. Other small chamber head castings were, 950 (usually found on '70 models....they had no smog rails) and 902. The later, large chamber 472/500 head castings were 552 and 493.

If the oil pan is off, you can check the casting number on the crank.......the site that I listed above shows where to look. It sounds like you may have an early 472 though.

07-26-04, 07:35 PM
The crank has a number of 1486424, the block is 8218326. So you think this is a 472? Is there any interest in these smaller motors? You have been agreat help, and the sight you sent me to has a lot of info on these motors. :worship:

lux hauler
07-26-04, 08:44 PM
Sounds like a 472 to me but without seeing it, there's no way to be 100% certain.
Most people like the 500 simply because of the cubic inches. The 472 is every bit as good a engine, just not quite as big.
Are you going to sell it? If so, what's your approximate location?

07-26-04, 08:53 PM
Yes this is for sale, I am in Portland Oregon. If there is any interest email me or leave a note.

07-28-04, 06:48 PM
Well there is one less 472 on the earth to worry about. :violin:

lux hauler
07-28-04, 09:29 PM
Well there is one less 472 on the earth to worry about. :violin:
:confused: :hmm:

barge master
07-29-04, 08:45 PM
The old hi-comp 472 has got all the sack a low-comp 500 has any day of the week. I think people just like that big number.