Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Ok, first of all, what do you mean by ID an engine? Don't you already know it's a 4.3l? What else do you want to know about it?
Now you never said in your opening post you wanted to know what the M meant.
Also, why are you spelling out all the numbers?
What does, "cash" mean? What does "oslo" mean?
T0305UCA can tell you the T means it was made in Towawonga. the 03 means it was made in March, the 05 means the 5th day and the CAI is the suffix code that I will look up now.
What phone? What are you talking about?
You said, "Was on a web site that kicked me to this site. I did have on that site another paragraph which spelled out what I was doing and what I wanted to know. "
I have no idea what that said, why didn't you just repeat what you are asking here?
what more do you want to know about this engine?
I don't know what the M means.
I have no idea where you were at before you came here. You need to go back to wherever you was and copy then paste all of that text here or type it all in again.
As far as the M goes, I don't know. There are plenty of ways the horsepower can be changed, a different camshaft with higher lift and longer duration is one, bigger valves is another, the shape of the heads, the vortec for instance, larger fuel injectors, etc.
What they specifically have done to this engine, I don't know.
I have had suffix code decoding links saved but they are down, here is one for instance. http://www.chevymania.com/partsid/suffix.cfm?block=Small
That suffix code should tell us a lot of info, but I tried here http://67-72chevytrucks.com/vboard/showthread.php?p=3741197 but that suffix code UCA was not found. Are you sure about them last 3 digits are UCA?
I looked here, too. I really don't have a saved link to decode 4.3 suffix codes.
I thought though the first answer I gave you said it was a 1996-1998 CHEVROLET 4.3 L. How much further do you need to narrow the year down and why?
I did read "The 4.3L V6 got a revised cylinder head in 1996 with specs much like the SBC V8 Vortec L31 cylinder head. " that may answer your question about how they raised the horsepower in 1996 which is what this engine was supposed to be.
here is 13 pages on that engine, http://www.hotsixes.com/chevy-v6/
Ok, what does LG three mean and I asked why you were spelling out numbers. It makes it hard to look them up cause first I have to translate them into digits.
Look, all the information is out there, I would have to spend a lot of time searching through all of the information out there in order to get you an answer, then you will probably ask another question and I would have to spend a lot of time searching down that answer. I suggest you just google the answers, that is all I can do. There is no manual that has this information and it would be impossible for me or anyone for that matter to know all of this information off the top of his head.
I answered as much as I could!