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111330 Posts in 12820 Topics by 4913 Members
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571  Camaro Research Group Discussion / Originality / Re: 1969 Z/28 motor mounts on: February 18, 2013, 11:33:16 PM
And mine, 01C X77. Sorry they are not as legible as Steve's, but the numbers corelate the same. All bolts are original as well. Man, I had forgotten that I put these away -

572  Camaro Research Group Discussion / General Discussion / Re: !969 cushion grip or rosewood steering wheel with tilt column on: February 18, 2013, 10:45:30 PM
Adaptor is between 4-3/32" and 4-1/8" diameter. The part number is cast as shown in the back side of the part - this one is off of my recently departed rosewood (still in mourning).

573  Camaro Research Group Discussion / General Discussion / Re: Old pictures of the 1969 Z/28 I owned in the late '70's on: February 12, 2013, 11:12:45 PM
Mission Valley Raceway, San Diego, CA circa late 70's, early 80's. Used to race there alot:

Burnout complete:

Out of curiosity - did you get the Henry J or did he get you ? My best friend in high school (class of '71) built an ex D/G straight axle, fiberglass front end, Pontiac welded spider gear narrowed rear end, 327 ram-log intake Henry on the street: looked very similar to this pic. I swear it would jump over a Coke bottle when it launched. Ride quality was so bad you'd leave a kidney on the road every bump you hit, but what a blast to cruise in. Those were the days -

574  Camaro Research Group Discussion / Restoration / Re: Radiator tag restoration on: February 10, 2013, 07:26:55 PM
I wonder if Evapo-Rust would have worked here too.


Probably does O.K. - the beauty part about electrolysis is replacement of the oxide with pure iron. This is not a plating process - it won't remove material from the part, it won't fill pits, and it won't add material like plating does. It will leave a black film on the part, which I scrubbed off during a clear water rinse with a nylon brush. I did "passivate" the part with a rust preventative after the rinse (this keeps it from rerusting when it dries, which it will do quickly). Any good bare steel prep like Ospho or Evaporust will work well - WD probably works too. Amazing thing - when the process starts, rust starts to float to the surface around the positive side of the connection, not around the part being derusted - very strange.

575  Camaro Research Group Discussion / Restoration / Re: Radiator tag restoration on: February 10, 2013, 06:58:07 PM
Steve - what did you use for the sacrificial rod?
I tried rebar but got inconsistent results reviving an oil pan but would like to try again since I have a ton of washing soda left over LOL

I used a flat (thick) uncoated steel washer, suspended about 2 inches from the tag. I also used steel wire rather than copper (to make sure no contamination to the tag from free copper dissolved from the anode). Since the iron oxide replacement is more or less line-of-sight, for a large item you can rig several electrodes around the part (rebar is good; steel and usually uncoated, easy to rig). Your imagination can have a lot of leeway - just make sure you suspend the parts in the solution, submerge and try not to let them touch the bottom or the sides of the container (should be plastic, or nonconductive). And always make sure the negative cable is connected to the part you want to derust, otherwise it will eat it alive like it does the sacrificial steel part.

If you bought a big box of Arm and Hammer like I did, you probably have enough to do a couple of subframes and an engine block or 2. Just be careful when you mix water and electricity - use common sense. BTW - raising the pH to the alkaline level is the main thing - the residue is no more harmful than leftover washing machine rinse water. Don't do this indoors, as the electrolysis produces both hydrogen gas and pure oxygen, which can be explosive if not ventilated well. Great thing - it's just plain cool to watch the rust disappear from the part (and watch the sacrificial part dissolve). See the next response to Mike's statement as well -
576  Camaro Research Group Discussion / General Discussion / Re: Old pictures of the 1969 Z/28 I owned in the late '70's on: February 09, 2013, 12:17:21 PM
1975 - car owned for two years at this point. It will get back to this one day, soon. This was my back-and-forth to school (187 miles one way to college) - 4:10's and 75 miles an hour, an exhaust pitch you never forget. I loved the Goodyears then, probably couldn't drive on them now (brought the Pacer home on bias ply Generals, all over the road for 113 miles, all over the interstate). Gotta love the X77's.
577  Camaro Research Group Discussion / Restoration / Re: What arer the correct colors for these? on: February 06, 2013, 10:44:05 PM
I matched the color/gloss from an NOS cowl cleaner that I own when doing an L48 auto (ThermAC) cowl cleaner a few months ago - the best match I found was Dupli-Color acrylic enamel DA1603 semi-gloss black - to me, a dead-on match when it dried (very glossy when wet). I compared the 2 side by side, and could not see a difference in gloss or texture. Watch the temperature when you spray, too cold and you'll orange peel a little (but then again, factory paint was light years from perfect !). 

Jerry has good suggestions in the '69 Definitive book's part finish section if you want a better guide. If you don't like spray bombing parts, a good auto paint mixer can get you there from Jerry's gloss percentages/recommendations. Just my opinions -

578  Camaro Research Group Discussion / Originality / Re: 69 smallblock (302) Oil dip sticks on: February 06, 2013, 09:16:41 PM
Member            Production           Dipstick
                     Plant       Week        Type
69Z28-RS        NOR        09C            flat
JOHNZ            NOR        02D            flat
BULLITT65      NOR        08C            flat
RSZMJT          NOR        06A            flat
jdv69z            NOR        10(68)        flat
68CamaroZ28  NOR        11(68)        Green tip
X77-69Z28      NOR        05A            flat
z28z11           NOR         01C            flat
579  Camaro Research Group Discussion / General Discussion / Re: Possible fake 69z28 on e-bay on: February 01, 2013, 12:01:35 PM
Does it matter that the original post was made over 6 months ago?  I mean what is the point to revive it now?

Probably 'cause it's back on eBay as auction #281051607454. Must have been a prototype '69 produced in March '68 - that's the only explanation I could draw from an 03D month car with a 519374 VIN ending. Some people go beyond outrageous to gall and back when they advertise these cars. Gotta love pop rivets, especially big ones with paint. Really wish it had air and an automatic, so it would be more original.

580  Camaro Research Group Discussion / Restoration / Radiator tag restoration on: January 27, 2013, 08:22:14 PM
After a couple of comments on the Originality section about recoring radiators, I decided to dig up the radiator tag for my Z11 L48 auto w/ A/C (UR code) and try to salvage it. Radiator tags are so extremely thin material, (you've probably noticed) that I was afarid to bead blast it without shredding it to pieces or blowing holes in it, plus removing too much material (see before pics). As I have not been able to find a repop UR tag yet, I tried something that really does work - electrolytic rust removal. A couple of hours in a plastic bucket hooked up to a battery charger can work miracles (as far as I'm concerned). Just thought I might share a few pics of before and after treatment - I have not bead blasted the tag, and may not, as a light coat of primer should finish this up before paint. Dirt cheap, and works surprisingly well, especially for tightwads like me with less-than-no-budget to work from. No holes, stamped number is plainly visible, traces of original paint remained in the crevices behind the rust.

581  Camaro Research Group Discussion / Originality / Re: 1969 spare wheel on: January 26, 2013, 08:29:18 PM
Don't forget the other option - SS five spoke wheels, 14 X 7 AO code K-H's, available up until late '68 if I remember correctly, I've always called them SS-1's. Some people like 'em, some don't, but I'm happy to have all 5 of mine on the L78 X66 12A barn car.

Another senior moment - I scrambled over the pile in the garage looking for date codes on my N66 SS rally wheels, only to discover that they are not AO code '70 Chevelle wheels (I was apparently remembering the '70 LS5 I sold last year), but are YA code Camaro wheels like they are supposed to be. That's what I get for owning a Chevelle ( at least I sold it to afford my '68 Z). I have to assume they are not Kelseys ? No "K" code, all are marked M19, dates range from 4/23 - 5/28. Car is a 12A '68 X66. My bad - leaped before I looked.

582  Camaro Research Group Discussion / Originality / Re: 69 Z28 Radiator Re-coring ? on: January 25, 2013, 10:29:25 PM

Wish mine was more of a survivor than it is.

The radiator shop in Nashville that did my friend's Z is Tanks and Tabs, 801 Fesslers Lane, Nashville, 800-874-2559. I went on the website for them, you can select the core # for the '69 Z, but it won't give you anything but the number. I'll check them out next week when I'm in town (realize it's too late to help with yours !), but with eventually 4 to do, I'd like to get a handle on a good source.

My '69 Z radiator has never been touched, tag is intact, '68 Z's radiator appears original, a little bumped and bruised, but original tag is there and intact, Z11's tag is being restored, X66's is missing. Have to go the repop route on it -

583  Camaro Research Group Discussion / Originality / Re: 69 Z28 Radiator Re-coring ? on: January 25, 2013, 12:43:22 AM

Will do. I'll try to get it tomorrow, BTW, look at the link Ed sent me for a good look at the tags and the tabs that hold them on - good pictures (great info !).

584  Camaro Research Group Discussion / Originality / Re: 69 Z28 Radiator Re-coring ? on: January 25, 2013, 12:34:29 AM
Speaking of tags, do we have a listing anywhere in the site info of a breakdown of radiator tag info ?

HERE you go Steve.


Ed - just saved me a lot of heartburn. I have looked for this info for years, never realized it was right under my fingers. Another instance of why this site is soooo appreciated - and you guys that labor so diligently on it. Incidently, I bought the right GM UR tag (by accident) years ago - this just documented why I bought it !

Thanks and regards,
585  Camaro Research Group Discussion / Originality / Re: 69 Z28 Radiator Re-coring ? on: January 25, 2013, 12:20:44 AM

Tags are easily removed, with a little care. They grip around the edge of the tank, and have a couple of "spurs" that lock them on. If you're careful, they'll usually come right off without damage. Be careful of weakened (rusted) metal - it's pretty thin steel.

I have not had any of my radiators rebuilt as yet, but a fellow Z owner near me had his rebuilt by a shop in Nashville. Swears it's dead nuts, and knowing this owner very well, I'd take his word for it. His Z has been in his family since the early 70's, and he is very particular about it. I suppose it's too late to get the source for you, but according to him, the 3 row core, exact duplicate, is available. I intend on getting mine done at the same source he used (whenI can afford it).

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