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105009 Posts in 12267 Topics by 4728 Members
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3886  Camaro Research Group Discussion / Originality / Re: '68 396: Smog Diverter Valve "Broadcast code" question ?? on: March 26, 2006, 10:31:32 AM
This gets further clouded by the fact that most service parts were catalogued with different part numbers than the original production part, due to the way they were packaged; a service diverter valve in a box with a gasket would carry a different part number than the identical production-line part. Also, many parts were consolidated to reduce the number of parts required for service - where three or four different part numbers of valves were released for production usage for different engines, in service, frequently one valve was catalogued as a "functional replacement" for those usages. It didn't LOOK the same as the original production part, but functionally, it did the job as a replacement.
3887  Camaro Research Group Discussion / Decoding/Numbers / Re: Tinted glass date codes-how early? on: March 26, 2006, 10:22:43 AM
My 02D '69 has all its original tinted glass, including the windshield, and it's all dated December '68 and January '69.
3888  Camaro Research Group Discussion / General Discussion / Re: 1969 Z/28 - was power steering an option? on: March 25, 2006, 11:25:35 AM
Yes, it was. About the only options not available on Z/28's were A/C and automatic transmissions.
3889  Camaro Research Group Discussion / Originality / Re: 69 Camaro console and dash housing X77 on: March 24, 2006, 10:14:36 AM
The steering column also matches the interior color.
3890  Camaro Research Group Discussion / Originality / Re: 041 / 041x heads 1969 350 on: March 23, 2006, 03:03:18 PM
A friend who has spent his entire career at the Saginaw foundry says the "X" is meaningless - just a foundry marker - on all small-block heads except the 461's, where the 461X had a 15cc larger intake port.
3891  Camaro Research Group Discussion / Originality / Re: 69 Camaro console and dash housing X77 on: March 23, 2006, 02:55:11 PM
With a green interior, the console should also be green - matches the carpet/seats/doors etc.
3892  Camaro Research Group Discussion / Decoding/Numbers / Re: 12 BOLT DATE CODES on: March 23, 2006, 02:50:58 PM
The casting date only refers to the date the iron center section was poured at the foundry; the stamped date on the RH axle tube is the date the axle assembly was completed (tubes, brakes, diff, etc.). Generally, the axle assembly date will be within 1-6 weeks after the casting date, but there are exceptions. The only "rule" is that the stamped assembly date must be after the center section casting date.
3893  Camaro Research Group Discussion / General Discussion / Re: Blue Paint Mark on Steering Column on: March 22, 2006, 12:51:40 PM
Probably from a random-sample inspection at Saginaw; my '69 is an untouched original, and doesn't have any blue marking on it.
3894  Camaro Research Group Discussion / General Discussion / Re: Vinyl or Not? on: March 22, 2006, 12:46:35 PM
Use the standard "Reply" button (not the "quick reply"), and use the "Additional Options" feature below the box you type in; that will upload the image from your computer and place it in your post; copy-and-paste won't work - the image has to be uploaded first, and that feature does it.
3895  Camaro Research Group Discussion / Originality / Re: SS350 Ignition Coil Code on: March 21, 2006, 11:24:18 AM
The A.I.M. shows the 270 coil assembly for all ZL2 usages; its bracket tilts it back out of the way of the air cleaner base.
3896  Camaro Research Group Discussion / General Discussion / Re: Headlight switch knob removal and switch testing on: March 18, 2006, 12:30:28 PM
There's a small spring-loaded plunger protruding from the metal portion of the switch; hold that little plunger down and pull the knob, and the knob and shaft will come right out. There's a self-resetting thermal circuit breaker inside the switch that reacts to a dead short in the headlight circuit so you don't lose the headlights completely - it cycles them on and off instead (that's why there's no fuse for the headlights).
3897  Camaro Research Group Discussion / Originality / Re: 69 L48 (SS350) - 2 or 4 bolt mains? on: March 17, 2006, 01:30:22 PM
Kurt, the L48 350/300 used in the '69 Corvettes (base engine) used the 3932386 (early), 3956618 (mid-year), and 3970010 (late) blocks, and all were 4-bolts. From then on, they used the 010 block for all 350 applications thru 1979, and starting in '71 the base versions were 2-bolts and the optional versions were 4-bolts.
3898  Camaro Research Group Discussion / Maintenance / Re: fuel pump gasket is leaking oil on: March 14, 2006, 11:40:35 AM
First, make sure you know where the oil is really coming from; I see lots of cars that don't have the bolt in the top front boss right around the corner from the fuel pump on the front of the block, and leakage from there coats the fuel pump. If that bolt is missing, it takes a 3/8"-16 x 1/2" bolt with thread sealer on it.
3899  Camaro Research Group Discussion / Decoding/Numbers / Re: My Mystery '67 Camaro on: March 14, 2006, 11:23:01 AM
Nope, no "Marti report" info is available for GM cars, other than the numbers on those we have in the CRG database. Yes, there are fake cowl tags out there by the hundreds - we see them every day on eBay and other on-line-advertised cars.

Let's boil this down - the car has no VIN plate on the door jamb at all (just rivet holes?). The 7L160971 is stamped adjacent to the heater opening. Where exactly is the 124378N430775 VIN located? Is there a VIN "window" in the upper instrument panel just behind the windshield opening? Is there anything in it?
3900  Camaro Research Group Discussion / Mild Modifications / Re: Drum to Disc conversion 68 camaro on: March 13, 2006, 12:13:15 PM
There's lots of info on disc brake conversions on David Pozzi's site - .
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