Could anyone let me know how to find information on my engine? I am curious as to what the value is.

Value of an aluminum 225 is highly variable depending on a bunch of factors. Is it an early block or a late one? (easiest way to tell is to post the engine ID number stamped at the top front of the block) Is it standard-bore or overbored, and if overbored, to what size? What is the condition of the cylinder bores? Is there corrosion in the water jackets and/or crankcase? Where and how much? Is the block complete with all 4 upper and all 4 lower main bearing caps, and are they undamaged? How about the rear main seal retainer, is it present? Is this a complete engine or just a block? What's the condition of the top deck surface? How many miles on it?

Once those questions are answered it becomes easier to assign an approximate value.

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Too many people who were born on third base actually believe they've hit a triple.

The aluminum block SL6 also had a special cylinder head and head bolts. Having those would add value.
This is a 'specialty item' that is worth different amounts to different people.
What is it worth to you?
DD

Also, check the block cam journal bores. There are no cam bearings in the aluminum block. The cam rides right in the aluminum block cam bores. All post 62 blocks use the same head. The special head was in 60-61 only. I have a 1980 head on my 63 block. Why? My original head required $660 to refurbish. The 1980 head cost $310 AND has hardened valve seats compatible with lead free gasoline.

Yeah, everything is all there in and good condition, undamaged. There is practically no corrosion in the water jackets. It is standard bored, and yes, the rear main seal oil retainer is there. But I can't find any info numbers. The casting #is 2121355
The numbers on the rear of the engine are two sets:
45260 and P.T. 2121355-3.
And there are some numbers on the top lip of the block that read: SA22 1 05 followed by the chopper/independent insignia. Could you give me any information?

SA22 1 05: This is an aluminum 225 built on January 5, 1962. Could be early or late style.

Not sure what you mean by the "chopper/independent insignia", but I will take a guess that you mean a maltese cross, which indicates the crankshaft was ground 0.001" undersize at the factory.

So, to make sure we're on the same page: You have this complete engine (with head and special head bolts?), with all upper and lower main bearing caps, with rear seal retainer, it's never been overbored, there's essentially no corrosion...am I right so far?

Now: What kind of value are you looking for? You think you might use it, think you might sell it, it's in your car and you need to figure out an agreed-value insurance policy, something else?

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

No aluminum engines in '60. The special heads (there were two different ones) were used in '61-'62. The few '63 aluminum engines made used the same head as the iron engines.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

What is the difference Between the 2 Aluminum Only style heads and the regular Cast Iron Ones? can they be spotted at sight?


Thnaks, Greg

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First run of special heads has the word "SPECIAL" cast on the top surface near #5 ports. The second run has a 5-pointed star in this location. Both of these have the regular normal head casting number 2206035 inside the valve cover gasket rail. These heads have slightly smaller combustion chambers for a guaranteed seal against the thin top of the cylinder barrel, and extra clearance for the pushrods. These heads can be used on an iron block without a problem, but a '60-'62 regular normal head can't be used on the aluminum engine. The '63-up heads all have the more precise combustion chamber placement and pushrod clearance notches, so can be used on an iron or aluminum engine.

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Too many people who were born on third base actually believe they've hit a triple.

Thanks for the info, guys. Yes, you are exactly right so far. I checked the head, and confirmed that it is from the second run of special heads,it has the five-pointed star and the 2206035. I'm wodering about the exaust manifold, but I doubt that it isn't original. I don't think I want to put it back into the car though. The valiant it came with is all there, there isn't all that much rust, I sanded it down to the metal and there is only a couple of spots that need bodywork. All original including the tranny. I'm not sure what to do.

Well, what are the factors you're thinking about while deciding whether or not to use this engine?

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

Thats a sweet lookin' dart you got there, greg.

Well, I would like to put that badboy in something, but I dont think I want to put it back in tha valiant. I don't think I want to restore the valiant, Ithink I might try to sell it. I got this badass 66 Dart that I am almost done with but I already installed it's engine. I don't have anything to put the slantsix in right now... Maybe I can get enough money out of it to get another good project going.

Say, Greg, how many horses is your 69 Dart Swinger running at?