Messages

2266

General Discussion / Re: "DZ" grease pencil mark

« on: October 14, 2017, 08:28:24 PM »

Thanks Kurt. Doesn’t look like much paint on that head in the area with the letters. Was originally under the paint?

And this has broadened into a larger topic, but original question was for a DZ engine. 

2267

General Discussion / Re: "DZ" grease pencil mark

« on: October 14, 2017, 05:34:51 PM »

There are potentially two different things we are taking about.

1. What was done at the engine assembly plant. The yellow markings on the block (such as 302) were put there to help the workers know which rotating assembly to install in the block. There were markings on the heads too, probably to help determine which heads to put on the block. The 302s got the heads with 2.02/1.60 valves. Whether this was done with grease pencil or a paint pen, I don’t know. But these markings were painted over.

Jerry has seen many original cars and I quoted what he said above.

2. What was done at the vehicle assembly plant. Could some engines have gotten a code written on the head with a grease pencil? Possibly, but it’s not the norm. By 69, big blocks had an broadcast code sticker on the valve cover. I can’t say for small blocks. Flint and Tonawanda might have had different policies.

Try an experiment. Grease pencil a marking on the head of a freshly painted engine and see how long it lasts. I don’t think it was done that way, but give it a try. Probably won’t last through many heat cycles on the front of a head. 

It’s graffiti. Like some restored cars with grease pencil markings for paint code on the firewall. Cars got them, but they were covered over by the firewall blackout paint. Grease pencil markings behind the rear seat generally survived, for obvious reasons.

2268

General Discussion / Re: "DZ" grease pencil mark

« on: October 14, 2017, 04:42:40 AM »

Possible.

But more likely it was for the engine plant assembly use. Double hump heads were available with both 1.94/1.50 valves and 2.02/1.60 valves. The DZ or MO notations were probably for engine assembly use.

I will see if I can get JohnZ to chime in.

2269

General Discussion / Re: "DZ" grease pencil mark

« on: October 14, 2017, 01:45:59 AM »

Like I said, that’s not the norm.

Remember “the engine was sprayed with cheapest orange enamel available in bulk that month”.  Maybe that month it was thinner than normal?

One picture does not make it clear cut.

2270

General Discussion / Re: "DZ" grease pencil mark

« on: October 13, 2017, 07:24:52 PM »

I asked Jerry M. specifically about DZs and head markings he has seen and he said

“Any that I've seen are badly faded and a lot of the orange paint is gone from the head.”

2271

General Discussion / Re: "DZ" grease pencil mark

« on: October 13, 2017, 06:54:59 PM »

The 10D norwood I restored a few years back... 302 on the side of the block upon tear down.

That’s there so they know what rotating assembly to install. Markings done before paint. 

And I changed some of the wording in my first post above.

Right off hand, not sure on small blocks - but on 69 big blocks, there was an engine code sticker put on the valve cover for ID.

2272

General Discussion / Re: "DZ" grease pencil mark

« on: October 13, 2017, 05:19:11 PM »

In general, those markings would be for engine plant assembly purposes, buried under paint. Sometimes paint was thin or burned off a bit and then may have shown through.

I can’t say it never happened (marks on top of paint) as there are a few pics out there. Mostly seen on MO engines in 68. That might have been due to a different type of marker used or a slightly different engine paint mix or supplier, making it easier to show through. But it wasn’t the norm as far as I know.

Assembly line ID of a DZ should have been pretty easy. Think about it. Small block, aluminum intake, special valve covers.

Do what you want people. I just stated I would never do it.

2273

General Discussion / Re: "DZ" grease pencil mark

« on: October 12, 2017, 06:30:28 PM »

If I see that on any car, my thought is “over-restored”.  Those are generally under the paint.

I would never do that on any car I own. 

2274

General Discussion / Re: CRG Forum is back up!

« on: October 12, 2017, 12:41:04 AM »

Kurt and Doug did all the hard work! 

2275

General Discussion / Re: CRG Forum is back up!

« on: October 12, 2017, 12:40:14 AM »

Nice Steve, nice. 

The only car that ever beat my dad’s old 68 Z28, was an AAR Cuda. Plum crazy purple, slicks. He lost by half a fender. 

2276

General Discussion / Re: Looking for my old 67 RS Covertible, 327 4 speed car, Triple blue

« on: October 11, 2017, 03:32:35 PM »

I agree. Triple Blue is pretty rare.

2277

General Discussion / Re: CRG Forum is back up!

« on: October 11, 2017, 02:07:19 PM »

Ok so Gary has been busy!

I sold 3 project cars and some parts (but bought a few more parts because of great prices). Overall, downsizing.  Kinda looking for a big block or Z project car, but thats off the record! It’s not a want ad!

How about the rest of you?

2278

General Discussion / Re: Home page- your car could be the feature car!!

« on: October 11, 2017, 01:51:21 PM »

New ice for October/November 2017 are up!

2279

General Discussion / Re: Homepage & Feature Car pics

« on: October 10, 2017, 11:48:23 PM »

A New Feature Car was posted around October 1 - for October/November.  Enjoy!

2280

General Discussion / CRG Forum is back up!

« on: October 10, 2017, 10:49:19 PM »

Sorry for the inconvenience but things are back to normal now!!!