How can I find out what kind of engine I have?

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Old August 6th, 2011, 03:51 PM
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How can I find out what kind of engine I have?

I don't know a lot about cars, so this question may be kind of stupid, I don't know! I'm trying to learn, though.

I have a 1975 Cutlass Supreme that has a lot of problems. It runs well but needs work that I am planning to do myself. I've been told that a Haynes manual is a good place to start, so that's what I intend to do.

Anyway, the person we got it from got it from his grandfather, the original owner, I believe. This guy put in a different engine and worked on it for some automotive class or something. I figure I need to know what kind of engine he put in because I figure that will be the manual I need, right?

So is there any way to tell by looking? I'd prefer not to take it to a mechanic if I can help it because it's not technically insured right now, so if there's anything I can do to find out myself that would be best.
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Old August 6th, 2011, 04:34 PM
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Can you give us the casting number located here behing the water pump?




If you look here and give us the numbers, we can tell you what year it is.

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Old August 6th, 2011, 06:02 PM
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Just take a picture of the engine, and of the number above, and find and write down the number here:

(which may take some disassembly), and then we'll have enough information to go on.

And though the Haynes manual has some good "beginner" hints, you NEED to get the Chassis Service Manual for your year. Believe me.

Why, here's one now!

- Eric
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Old August 6th, 2011, 06:08 PM
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Just join Wild About Cars. They have electronic versions free for memebers.

http://www.wildaboutcars.com/
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Old August 6th, 2011, 06:15 PM
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Originally Posted by 66ninetyeightls
Just join Wild About Cars. They have electronic versions free for memebers.

http://www.wildaboutcars.com/
One problem with this, they do not have the Chassis Service Manual for 1975.

He'll have to go Eric's route.

Last edited by starfire; August 6th, 2011 at 06:18 PM.
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Old August 6th, 2011, 06:16 PM
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Originally Posted by 66ninetyeightls
Just join Wild About Cars. They have electronic versions free for memebers.

http://www.wildaboutcars.com/
... But not '75.

- Eric
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Old August 7th, 2011, 01:48 AM
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All of these are good tips for him unless the engine was swapped for something that is not Olds.
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Old August 7th, 2011, 04:00 AM
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That'a why I suggested he take a picture of the engine.

- Eric
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Old August 7th, 2011, 06:07 AM
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If he looks at the number stamped on the head like Eric told him to we should be able to tell if it was the original engine.
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Old August 7th, 2011, 09:35 AM
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Originally Posted by svnt442
All of these are good tips for him unless the engine was swapped for something that is not Olds.
I'm almost sure it's not an Olds engine. Would that number still be useful in figuring out what kind of engine it is?
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Old August 7th, 2011, 09:35 AM
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Originally Posted by 66ninetyeightls
If he looks at the number stamped on the head like Eric told him to we should be able to tell if it was the original engine.
I *know* it's not the original engine. I'm almost sure it's not even an Olds engine. Would that number still be useful in figuring out what kind of engine it is?
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Old August 7th, 2011, 09:38 AM
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Just take a bunch of pictures of the engine and post them here.
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Old August 7th, 2011, 09:48 AM
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Originally Posted by gardizzle86
...I've been told that a Haynes manual is a good place to start, so that's what I intend to do....
NOOOO....

Welcome, but do not waste your money on a Haynes, Chiltons, or Motors manual. They are all poor subsets of the factory Chassis Service Manual. You can get CSMs on ebay for about what you'll pay for a Haynes.
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Old August 7th, 2011, 10:09 AM
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Thanks everyone! Will post pictures in a new thread once I can take some. The car lives at my mom's house for now..
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