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112140 Posts in 12882 Topics by 4931 Members
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3661  Camaro Research Group Discussion / Originality / Re: Starter part number on: October 28, 2006, 10:04:33 AM
OK, In the interest of saving time on my part in research, Please define the difference of service and production numbers.

Many service parts carried different part numbers than the production-line parts for a given application, as they frequently consolidated usages so one part number would be a "functional replacement" for several similar applications, to reduce the quantity of parts they had to stock. Some service parts were the same part number as the production part, but most were not.
3662  Camaro Research Group Discussion / Restoration / Re: CORRECT UNDER BODY COLOR on: October 27, 2006, 11:24:31 AM
I haven't seen the unmolested underbody on enough original cars to give you a good answer on any change in primer colors; William probably has better data. Any exterior color overspray from the rocker guns would be the same color as the "lower" color on the car, with some black if the car had black rockers. Nobody in the color spray booths got on their knees to spray under the body, as most of the color coat was done by automatic reciprocating guns on guide rails, not people with manual spray guns.
3663  Camaro Research Group Discussion / Restoration / Re: Starter Wire Routing on: October 26, 2006, 09:34:07 AM
The starter wiring branch of the harness runs down outboard of the heater core pipes, is retained by a clip under the inboard lower corner heater blower housing attachment, then goes to the starter, with no heat shield - it's shown in the Assembly Manual in UPC 12.
3664  Camaro Research Group Discussion / Originality / Re: 69 gas cap on: October 26, 2006, 09:07:37 AM
The GM replacement, made by Stant, has the large "S" stamped on the rivet, and says "Vented" across the top and "Anti Surge" across the bottom; also has a thicker and more effective gasket.
3665  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.
3666  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.
3667  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.
3668  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

3669  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.
3670  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.
3671  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.
3672  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.
3673  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
3674  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.
3675  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).
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