: DZ 302 question
Apr 10th, 00, 06:26 PM
I'm looking at a 69 Z-28 and as far as I can tell it's a true Z-28 car(X33,4 leaf- springs,disk brakes ect). The owner has the original block for the car with the VIN.# stamped by the oil filter.He says there's no DZ stamped in the block? He has retored many Z-28's and he said this is not uncommon.He said everything is original and date coded but no DZ.The car is a Norwood Z VIN.#124379N6*****.Has anyone ever seen or heard of this? P.S I asked all the 302 ID questions and everything checks out on the motor. Thanks!!
Apr 11th, 00, 02:35 AM
This may be stupid but did you check the date codes. Are you trying to figure out if this is thee original motor for the car? The date code on the block should be before the date the car was built. The cowl tag has a date code that looks like 03B (second week of March) 11C (third week of November) Just examples. Compare the cowl tag date to the engine date
Apr 11th, 00, 02:54 AM
It could be that someone had the block decked and the codes were shaved off at that time. If the dates and casting #'s are correct and the VIN matches then it most likely is the original engine. What is the VIN, the date, and the trim tag NOR # and the guys at CRG can help make sure someone didn't put a bogus trim tag on the car. Without the engine code, you could always be second guessing yourself. How is the price compared to other "#'s matching" cars?
Apr 11th, 00, 03:10 AM
If the engine code is stamped down by the oil filter, check it out. Look at it, it should read something like this. V0215DZ This is where the DZ should be stamped. If any other letters are stamped in this area, let us know it may not be a 302 at all. It could be a clone.
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Apr 11th, 00, 04:57 AM
I believe he was saying the VIN was stamped down by the oil filter pad which is quite common on Norwood built cars beginning sometime in Dec. of '68. The engine assembly date and use code continued to be stamped on the block pad below the passenger side cylinder head by the Flint and Tonawanda engine plants.
Apr 11th, 00, 12:22 PM
The VxxxxDZ assembly code could've been removed if the block was decked as Jeff H stated. If it is all original..did you check the Carb? Does it have the DZ stamped on the choke horn? What is the block casting #...does it match up to a Z block?
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[This message has been edited by mccorry (edited 04-11-2000).]
Apr 11th, 00, 02:21 PM
70 RS/Z28 is correct, on cars built after around Dec 68, Norwood cars had the engine code was stamped on the alternator pad and the VIN stamped on the rear flange of the block near the oil filter.
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Apr 11th, 00, 03:06 PM
Thanks for the info guys!! The build date of the car is 02D so the NIN.# by the oil filter is correct.The carb and intake are both DZ units.The pulleys are the deep groove type ect.I have to check the engine date code,the owner did mention the block may have been decked.I'm going to make an offer on the car in a day or so,I'll let you know how it goes.Thanks again for all your help!!
Apr 11th, 00, 03:45 PM
I'd highly recommend posting the VIN and cowl tag data here (or send me an email), before you buy it. I'll make sure they match. Found ~20 cars last year with swapped tags. On pace so far this year too. http://www.camaros.net/forum/frown.gif
Apr 11th, 00, 06:32 PM
Thanks for the offer Kurt,I'll e-mail the info to you.You guys have been a big help! Thanks again
Apr 15th, 00, 03:20 AM
There is a well-known acid-etching process by which one can recover, to some extent, the stamped characters on a decked block. CRG has a draft process document for this which was successfully used in a real evaluation. We haven't published it on-site yet as we would like more feedback on the details from further tests. If you would like to evaluate this for us, let us know and we'll email you a copy of it.
Camaro Research Group