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111447 Posts in 12830 Topics by 4913 Members
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3751  Camaro Research Group Discussion / Decoding/Numbers / Re: your thoughts on date code 302 on: August 14, 2006, 09:52:44 AM
I have 10B build date Z; Engine assy date is Sept; Block casting date is I 23 8 - Aug; Only about 6 weeks from block casting to assembled Camaro.

Jimmy V

I 23 8 is September 23rd, not August. Smiley
3752  Camaro Research Group Discussion / Originality / Re: Did GM ever put M-20 in 69 Z-28?? on: August 12, 2006, 04:04:08 PM
Lots of Z's were built with M20. You had to order a 4-speed, but you could order M20, M21, or M22.
3753  Camaro Research Group Discussion / Decoding/Numbers / Re: Is there date/year codes on hood hinges?? on: August 11, 2006, 09:53:35 AM
If they're dated, I've never noticed it - I don't see anything on my original '69 hinges.
3754  Camaro Research Group Discussion / Maintenance / Re: Recommendation on Transmission Pilot Bearing on: August 08, 2006, 02:59:01 PM
I've used the GM needle roller bearing in several project cars (after dialing-in the bellhousings) with no problems at all. Gotta love the comment above about the needles at 7,000 rpm - there's no relative motion between the needles and the input shaft unless the clutch pedal is depressed; how often does anyone free-rev the engine to 7000 rpm with the clutch pedal on the floor?

The correct oilite bronze bushings work fine too, but take a magnet with you when you buy one, and don't take it if it's attracted to the magnet; there are lots of Chinese counterfeit bushings out there that are mostly iron, and they'll score the input shaft.
3755  Camaro Research Group Discussion / Restoration / Re: Dash Instrument Panel on: August 08, 2006, 02:50:45 PM
Make sure the stamped sheet metal grounding strap is still in one piece and is in place - it attaches to the wiper switch and the light switch, has a "leg" that attaches to the lower I.P. reinforcement, and has a wire pigtail on it that also attaches with a separate screw to the lower I.P. reinforcement along with the I.P. harness ground wire. If that strap isn't in place, the wipers won't work, nor will the instrument lights.
3756  Camaro Research Group Discussion / Originality / Re: Smog tube question. on: August 08, 2006, 02:43:49 PM
They had a greenish-brownish-colored coating - don't remember the technical name for it, but it was never used on any other parts as far as I know.

3757  Camaro Research Group Discussion / Decoding/Numbers / Re: 69 Camaro date codes-How close?? on: August 08, 2006, 02:21:46 PM
In that case you are in great shape!   Engine built on Nov 19, distributor built on Oct 25 works for me....now if I could just remember when to include or not to include the letterr I in the date coding process I'd have it made.

Here's your answer to that one:

    http://www.camaros.org/numbers.shtml#GM-InternalDateCodes

Smiley
3758  Camaro Research Group Discussion / General Discussion / Re: 1967 SS350 Replacement Clutch Recommendation on: August 08, 2006, 02:12:34 PM
I've had good luck with LuK replacements - they're the largest OEM clutch manufacturer in the world, and have a good reputation for reliability; if your AutoZone doesn't stock them, they can get them for you, or you can get them at www.dialaclutch.com .
3759  Camaro Research Group Discussion / Decoding/Numbers / Re: 69 camaro 327 exhaust manifold #'s needed on: August 07, 2006, 09:40:28 AM
The "527" and "826" manifolds are shown as correct for all manual transmission, with or without A.I.R., small block Camaro applications for 1969 including the 302 Z28 engine.  These manifolds have A.I.R. drilled and tapped connections.  If A.I.R was not used, the ports were plugged.   

From personal experience, I removed a set of the "527" and "826" manifolds from a 69 327 base coupe that had a 3 speed manual and no A.I.R.  The manifolds were required because of the 3 speed manual trannsmission.  Since there was no A.I.R., the ports were plugged from the factory.  The "527" manifold is currently on my car.

Plugs weren't used in the exhaust manifolds on non-A.I.R. engines - they used the same 527 and 826 castings, but they weren't drilled or tapped for the air manifolds. The only engines that used factory-installed plugs in the exhaust manifold openings were those that specified RPO KD1 (Less Air Injection) for overseas export.
3760  Camaro Research Group Discussion / General Discussion / Re: Coil spring spacers for 67-69 Air Conditioned Camaro's? on: August 04, 2006, 10:50:04 AM
Absolutely not - Chevrolet NEVER released "spring spacers" for any application on any car line. Springs were computer-selected based on option weights in order to keep the bumpers within the Federally-mandated bumper height "window"; that's why there were so many different part numbers of springs with unique loaded heights and load rates, to suit the application.
3761  Camaro Research Group Discussion / Mild Modifications / Re: front brake conversion to disc on: August 02, 2006, 11:20:36 AM
Dropped spindles may "look cool", but it severely limits choice of front tire size and results in tire rubbing issues.
3762  Camaro Research Group Discussion / Originality / Re: Seat belt color question for a 723 interior, 11C build. on: August 02, 2006, 11:18:07 AM
I forgot about the green-to-black change in December/January for standard belts; if yours has green belts that appear to be original, your car may represent an earlier data point for the changeover than we've observed to date.
3763  Camaro Research Group Discussion / Originality / Re: Seat belt color question for a 723 interior, 11C build. on: August 01, 2006, 12:15:55 PM
All standard seat belts were black, regardless of interior color; they were still black with the deluxe (Z87) interior too. Deluxe belts matched the interior color, but they were a stand-alone option, not tied to any other option, and had to be ordered separately.
3764  Camaro Research Group Discussion / Restoration / Re: wiper motor gromets on: July 29, 2006, 10:09:08 AM
No, the grommets were not installed at the time of painting - they were part of the wiper motor as received, and the wiper motor was installed about two shifts later by Chevrolet, long after the body was painted at Fisher Body. There should be no paint of any kind on the grommets or on the ground strap.
3765  Camaro Research Group Discussion / Restoration / Re: 1969 ss 350 x55 code on: July 29, 2006, 10:07:19 AM
Yes - L-48's used both 041 and 186 heads (with 1.94"/1.5" valves, not with 2.02"/1.6" valves).
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