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111312 Posts in 12818 Topics by 4913 Members
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3661  Camaro Research Group Discussion / Decoding/Numbers / Re: 67 Camaro Series 3 Differential on: October 26, 2006, 08:51:43 AM
Chevrolet didn't manufacture Posi units - they purchased them; the "EBD" indicates that it's from Eaton, which was Chevrolet's sole source for Posi.
3662  Camaro Research Group Discussion / Originality / Re: Correct Carb Part # on: October 23, 2006, 09:35:56 AM

Wow! That looks awesome. Thanks for the reference. This will make a nice winter project. Find a proper date coded Holley, send it out for restoration and then install for spring. Grin Can I ask what is the guideline on the carb date code vs. engine build date and car build date?

Thanks again for the reference this is a big confidence booster for getting a correct date carb.


The carb should be dated back from the car's final assembly date, not the engine assembly date (they were installed at the car assembly plant, not at the engine plant); 2-8 weeks is "typical", although NCRS allows up to six months in Corvette judging.
3663  Camaro Research Group Discussion / Restoration / Re: STANDARD INT WITH DELUXE SEAT BELTS on: October 22, 2006, 09:26:59 AM
Even deluxe interior cars came with standard belts. Deluxe belts were a separate option that had to be ordered if you wanted it.

And I'm sure that confused a lot of customers who assumed that the Deluxe Interior (Z87) included the Deluxe Seat Belts and found black belts with plastic buckles when their car showed up. My '69 Z/28 is a pretty highly-optioned car (including Z87) and looks odd with black standard belts.
3664  Camaro Research Group Discussion / Originality / Re: Correct Carb Part # on: October 22, 2006, 09:21:46 AM
Jerry MacNeish is also a Holley restoration specialist - here's the 4053-DZ he did for me, and he gets a lot of business from the Corvette restoration community as well.  Smiley

3665  Camaro Research Group Discussion / Originality / Re: head gaskets on: October 21, 2006, 03:26:45 PM
The original steel shim head gaskets were about .018"-.019", and shouldn't be used for a rebuild unless the deck and heads are freshly machined; otherwise, use composition gaskets, which are available in several thicknesses from .030"-.050" - they'll seal fine if corner-to-corner deck flatness is within .003", but steel shim gaskets won't.
3666  Camaro Research Group Discussion / Decoding/Numbers / Re: engine block on: October 21, 2006, 03:18:12 PM
Does any know where to get more info on the meaning of all the numbers on my block not the casting number or date code but all the other number all over the block like gm18 and others

The other numbers are pretty much meaningless in terms of identifying the block - most of them are foundry pattern numbers, used for tracing back any problems that appeared during machining.
3667  Camaro Research Group Discussion / Originality / Re: body bushing tape on: October 20, 2006, 10:13:40 AM
As I posted over there today, the tape in the photos appears to have been applied to the underbody, not to hold the body cushions to the subframe; I'd guess Fisher Body applied it over the two rear subframe mount bolt holes to keep water out of the body during their in-line 3-minute water test, which had nozzles under the body as well as on the outside. They also had large foam masks that clamped in place over the heater and blower holes, steering column holes, and floor shift holes, as those parts were installed later by Chevrolet.
3668  Camaro Research Group Discussion / Originality / Re: 67 spoiler question on: October 19, 2006, 10:02:30 AM
Hello everyone!
New to this board. On the question about 1967 spoilers, what exactly do you mean when you say they weren't 'available', yet could be 'dealer installed'?

They were never factory-installed on 67's in production, but many were installed by dealers or owners in later years with over-the-counter-purchased GM spoilers.
3669  Camaro Research Group Discussion / Restoration / Re: 1969 convertible trunk floor on: October 16, 2006, 09:55:47 AM
Just use the "Additional Options" item just below the box you type in, and you can upload photos directly from your hard drive.  Smiley
3670  Camaro Research Group Discussion / Originality / Re: Original Air Cleaner for 69 SS on: October 16, 2006, 09:52:57 AM
There was no option for a chrome engine dress-up package in '69.
3671  Camaro Research Group Discussion / Originality / Re: original big block heads on: October 15, 2006, 08:57:11 AM
Ed -

1. No, they wouldn't mismatch heads on the same engine - not intentionally, anyway.

2. Yes - either Service would take them, or they'd be scrapped (re-melted at the foundry next door).
3672  Camaro Research Group Discussion / Restoration / Re: 1969 convertible trunk floor on: October 14, 2006, 09:33:31 AM
Are they spotweld indentations the full width of the panel, or larger "dents"? Got a photo?
3673  Camaro Research Group Discussion / Decoding/Numbers / Re: HEADS/BLOCK/MANIFOLD HELP on: October 14, 2006, 09:26:55 AM
Here's the data, still waiting for the VIN:

Thanks for responding,Heads 3917291   C227,Manifold 3905393,
Trans T7E05D,Axle PA0426G1,Engine Pad T0406MM NoVin
Stamped There,Back of Block 3903352 also D47     352
05A                                               G
67-12437                 NOR 117308
709Z                                   S-2
3674  Camaro Research Group Discussion / Mild Modifications / Re: Has anyone tried this? on: October 13, 2006, 09:38:10 AM
"Dave's Small-Body HEI" can convert your existing "small" distributor to HEI if that's what you really want.  Smiley
3675  Camaro Research Group Discussion / Maintenance / Re: Transmission/clutch noise on: October 13, 2006, 09:36:46 AM
Based on your symptom, I'd vote for the input shaft bearing. With the clutch pedal on the floor (clutch disengaged), the input shaft isn't turning - the only relative motion is between the input shaft and the pilot bushing, and the throwout bearing is rotating. When the clutch pedal comes up and the clutch starts to engage, the input shaft spins up, and when the pedal is all the way up, motion stops between the pilot bushing and the input shaft, and the throwout bearing is off the clutch fingers and stops rotating.
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