Looking for input on the 70 Z28 on eBay right now.....especially regarding the trim tag and replacement engine stamp. For the trim tag, there only appears to be an "A" code without the numeric month stamp...never seen this before. For the CE block pad stamp....is this a valid format? I've also seen supposedly authentic CE blocks that start "CEA12345....". Do the CE blocks include a third alpha character as in this eBay auction or did GM change the format through the years? I am not even addressing the many other questionable issues, such as the cracked dash that appears to actually be in the steel cowl section....gotta wonder if it's a bondo fix or???

http://cgi.ebay.com/ebaymotors/1970-5-Z-28-The-real-deal_W0QQitemZ270099518125QQcategoryZ6161QQrdZ1QQcmdZViewItem

The paint is so thick on that trim tag that you can't see the rest. It should have A51 for bucket seats, which all of them had anyway. Not sure about the block, but the rear bumper guards are missing too.:eek:

Thats a 1971 replacement engine from the Flint (V8) Engine plant. The 1st digit after the CE indicates the model year in which the engine was mfg'd for service.



As for the other ? about the A's and B's in some CE service engines.....

Beginning in 1970, upon completion of the regular CE serial numbers, a plant re-issued CE numbers preceded by the letter "A" to indicate late production. Its also possible the used B or even C depending on demand.


Example: CE0A12345

Flint Plant used if need be:
A00001-A19999 & A80001-A89999 for L6 engines.
A20000-A49999 & A90000-A99999 for V8 engines.

Tonawanda Plant used if need be:
A50000-A79999 for their V8 engines.

They continued this practice throughout the 1970's.


Tonawanda and Flint V-8 each made around 5500 engines per day (one every twelve seconds)


fwiw
Back "in the day" most of the buyers of muscle cars didn't know SQUAT, and many beat the crap out of the car blowing motors up left and right. I remember those days well, I had a 66 Impala SS396 and then a 70 Chevelle SS454 (LS5). A friends brother got a new 1970 Road Runner 440 6-pk (Parents $$) and hammered it hard from day 1. Within a year it was junk and wrecked.

It should have A51 for bucket seats, which all of them had anyway.

Not in 1970. Every 1970 tag I have seen doesn't have the A51 bucket seat code. Including the one on my car.

The "A" seen on the tag is part of the build date.

Rick H.

Thanks to all for the input. Not sure about the A51 for buckets.....I tend to agree with White81Z that it is part of the build date. Yeah, the paint is thick, but I cannot even make out a partial shadow of any numeric characters.

For the CE engine codes....thanks WS6...great info on code formats. And based on your info, the engine in the eBay 70Z could be legit, but if they were issued serialized numbers from the GM plants, there does not appear to be any way of verifying it is authentic....or even an LT-1.

The block casting date is in November, so is it feasible that this late 1970 block was manufactured as an LT-1 to 1970 specs?....or would it have been manufactured to 1970 LT1 specs in early 1971 from a block cast in late 1970?

Again, thanks for the input....I've seen several "CE" blocks for sale but have always shy'd away due to lack of knowledge and documentation.

Looking at the rust around the trim plate and that dash section I'd sure want to take a close look at the rear frame rails before getting serious about the car. Good looking car though.

wood grain horn button and gauge bezel, but not shifter plate and doors.

wood grain horn button and gauge bezel, but not shifter plate and doors.
Thaat's 'cause they are STD not DLX door panels...I can't see the shift palte to comment upon it. RPO z23 would give you the wood grain trim on the instrument cluster and the wheel...doesn't specifiy the shift plate so??? on that ...even with a STD interior.

I think the car would look a lot better with the corrct front bumper. And the rear bumperettes. Check out the cutout in the fender. This car has had some work done to it.

If the car was a little more correct such as the correct paint, etc.. it would probably be doing better price wise.

Rick H.

I think the car would look a lot better with the corrct front bumper. And the rear bumperettes. Check out the cutout in the fender. This car has had some work done to it.

If the car was a little more correct such as the correct paint, etc.. it would probably be doing better price wise.

Rick H.

I'd have to agree with you on the front bumper... I'm no a big fan of the cheap and easy RS treatment...I also think that a Z should have what it is supposed to...liek the rear bumperettes...wow, that's two things in a row I agree with you on:o :D
Make that three things:) ...the more correct the better the price on something like this....That hood should go too....for the type of car it is.

You know it will stop being fun if we start agreeing on things. :eek:

But the car needs to be a little more correct and yes I agree (:cool:) the hood has to go as well.

Rick H.

You know it will stop being fun if we start agreeing on things. :eek:

But the car needs to be a little more correct and yes I agree (:cool:) the hood has to go as well.

Rick H.
No fun indeed!

BTW, I'm not seeing the "cutout" in the fender to which you refer...waht am I missing?

The "cutout" White81Z is refering to is on the passenger side fender under the hood just above the inner wheel well. I also agree that the "A" is for a date code because my 70 does not have A51 on the trim tag.

I have only seen the cutout open on a few 1974 Camaros. Very few matter of fact. The fender is not correct for a 1970.

Rick H.

Quote:
Originally Posted by eric alaska
wood grain horn button and gauge bezel, but not shifter plate and doors.

Thaat's 'cause they are STD not DLX door panels...I can't see the shift palte to comment upon it. RPO z23 would give you the wood grain trim on the instrument cluster and the wheel...doesn't specifiy the shift plate so??? on that ...even with a STD interior.

Ah, I see now, Z23 is woodgrain on the steering wheel and gauge cluster. And Z87 is the works with the woodgrain.