View Full Version : This guy claims he has a 502 crate engine in his 76
06-18-11, 10:42 AM
I called this guy out on his supposed "502 crate engine" and he called me a liar and all this other bs about how the 502 crate engine is the same block as the cadillac 500. I know that is all bs in his posting but I just wanted to double check and let anyone else tell him he is crazy and lieing to people.
06-18-11, 11:01 AM
i don't know why but i see a lot of people claim the caddy 500 is a 502. anyways, that thing is ugly as shit. look at the interior! GROSS!
06-18-11, 01:07 PM
Cadillac did advertise some 500s as 502s so his claim is probably true. I bet that a few people on here will have 502 emission stickers on their radiator shroud. I've only seen a couple 502s.
06-18-11, 02:20 PM
Where did they get the extra two inches from?
People might also be getting the Cadillac engine confused with the Chevrolet 502 that was offered in industrial fleet vehicles. They probably offered it as a (GM) crate motor, but that '76 obviously has a Cadillac powerhouse.
06-18-11, 03:05 PM
Like csbuckn said they did call some of their engines 502 and things bigger then 500. If he spent the money on it he should have the papers to back up what he said. I wouldn't want the car just because of the way it looks.
06-18-11, 03:39 PM
I thought they called them "501"s.
06-18-11, 10:22 PM
Yep, its 501. I was just talking with a friend that had one and it was 501.
06-18-11, 10:24 PM
Post deleted. Lulz. He mad bro.
06-18-11, 11:01 PM
I reiterate my question... Where did Cadillac get this number from?
06-18-11, 11:03 PM
It still says 500 CI under the 501. Also he emailed me saying he saw this post here. I looked up pics of the 502 crate motors and they look nothing like the cadillac 500 and the pictures posted is obviously a 500 and judging by the rust on the block down past the intake manifold it was not even rebuilt very well or recently. Looks like they just put a new intake manifold carb and compressor on it.
06-19-11, 03:03 AM
The head looks pretty clean past the intake.
06-19-11, 07:58 AM
If memory serves correct, the 500 cubic inch V-8 many times had "501" stickers on it. there was some rumor that the engine was really 501 cubes but 500 sounded better in advertising. I can NOT confirm this. The 502 that you frequently see in hot rods and such is a chevy big block based on the 454 that never made production. many people confuse the two.
06-19-11, 10:14 AM
4.3" bore x 4.3" stroke = 499.557 cubic inches.
2 other forums pointed out the 501 sticker but below it there is always a 500CI. This means it isn't a 501 but that it is a code and both forums said it was for emissions.
06-19-11, 11:35 AM
That makes sense.
06-19-11, 12:31 PM
I could see it being some sort of internal GM code. that makes more sense to me as well. I ran the bore x stroke on my engineering calc and it came out to 500 cubes as well, so I think the "501" is something else.
the 502 is a chev motor, and never installed in a production passenger car. It "may" have been in some medium and heavy trucks, but most of those are diesel. BTW, it looks like GM has dumped their medium duty trucks entirely.
06-19-11, 12:40 PM
We went through the "code" thing recently when csbuckn was talking about 90-92s.
06-19-11, 03:47 PM
I remember that, I believe there was no outcome in that one also.
Wow. AFAIK, and I've been around: 501 is the engine family number. This family includes 472,500,425,
and 368 (6 Litre). There is NO commonality between any other GM engine, or any other Cadillac engine.
I do not believe that Cadillac ever called the engine anything other than 500 or 8.2 litre. Why would they;
it's not anything but what it is, and what it is, is quite impressive.
502 Chevrolet engine. This exists as a crate engine, and is identified by stickers on the valve covers as
purchased. Available today for north of $5,000. Basically an enlarged 454, it was likely produced as a halo
product, and the size was targeted to be large by huge to impress all and sundry. There IS commonality
between the 502 and the 454/427. There is NO commonality between ANY Cadillac engine. This engine
is also very difficult to transplant into a Cadillac engine bay, and quite unnecessary as well.
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