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Messages - bertfam

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Decoding/Numbers / Re: Booster dating
« on: July 25, 2006, 02:25:33 AM »

Wow! Another owner just asked the same exact thing on the Team Camaro WEB site!! HERE'S MY ANSWER. Hope it helps...


Originality / Re: Correct tacho [tick toc tac] redline for 68 396 L34
« on: July 22, 2006, 10:05:09 PM »
Read the information on the 1968 PAGE here on the CRG site. It shows the L34 redline at 5.5k, but make sure you read note 6.

The bumblebee stripe was used up to January, 1968. At that time they went to the second version where the strips continued to the doors. The car in the auction is from early April, 1968 so yes, it would have the second version stripes.

Those caps are "standard equipment" for all models. If you didn't want Rally wheels, Simulated Wire Covers, etc... this is what you got.


Originality / Re: SS350 with 255hp engine
« on: July 22, 2006, 09:57:03 PM »
What you have is an LM1.

From the 1969 PAGEon the CRG site:

The LM1 moderate-compression 4-barrel carburetor 350ci engine was introduced at the beginning of the 1969 model year as the replacement for the L30 327/275HP engine. The LM1 was, in turn, replaced mid-way through the model year by the lower-performing L65 2-barrel carburetor 350ci engine, and most of the higher performance features of the LM1-equipped vehicles were not transferred to the L65 units. Even more so than with the L30/M20 in 1968, it was possible with the LM1 to create a SS-350 look-alike in most performance features. The absence of SS badges and SS hood/hinges, both easily added, are the only easily distinguishable clues between a L48-powered SS-350 and a LM1 with added J52 disc brakes, N10 dual exhaust, D90 stripe, one of the 70-series tire options, and the Z87 custom interior (which provides hood insulation). Closer examination of the original engine is required to note the lower compression heads, the distributor code, and/or the engine application code. The 7-inch SS wheels were also not available on the LM1/M20.



The front disk w/hub assembly was P/N 3901098 and the rear drums were P/N 3841176, but if you're looking for part numbers on the components themselves, you won't find it.


Originality / Re: 1968 Camaro Rally Wheel Center Cap question
« on: July 10, 2006, 02:11:44 PM »

They're all the same. Full Size, Nova, Chevelle, Camaro, Corvette... Used from 1968 up through 1982 (on the Corvette).

Can you post a picture of what you're looking at?


Originality / Re: correct speedo gear
« on: July 10, 2006, 02:07:06 PM »
Yes, the 8623311 has 16 teeth and the 8623312 has 17, And by the way, the 68 Turbo 400 uses the same gears as the 69.


Originality / Re: correct speedo gear
« on: July 10, 2006, 12:52:12 AM »

I'm not up on 69's as much as 68's, so what I write here is only a guess. 69 experts, please fix my mistakes!

I believe the lowest axle ratio you could get with the 396/325 and the M40 (Turbo 400) was 3.31. If you wanted lower gears than that, I think you had to upgrade to the heavy duty (or "High Speed") Turbo 400 that was standard on the 396/350 and 396/375 cars. This was a different transmission with heavy duty parts (see the product bulletin attached).

Because there were only so many combinations available for speedometer gears (due to physical size and teeth count), very low axles used a speedometer adapter to convert the output of the transmission speedometer gear. For example... Notice in the chart above that all heavy duty turbo 400's use the same 8623311 drive gear, and that the 2.73 axle and 3.73 axle use the same 9774413 driven gear. How can this be? If you used this combination in the 3.73 axle car, the speedometer will be WAY off!! Howver, by the use of a reducer (adapter) for the 3.73 axles you can use the same combination and still get accurate speedometer readings. Boy, those Chevy engineers were sharp, eh?

So in your case, with a Turbo 400, F70-14 tires and a 3.37 axle, you're going to need a 16 tooth (orange) "Drive" gear, a 34 tooth (Light Green) "Driven" gear, and a 3932220 adapter (reducer). That's going to be the hard part, finding the adapter. They come up on ebay periodically, so check often.

Hope this helps, and like I said, if I made any mistakes (which is VERY possible), some of the 69 guys will correct me.


Originality / Re: correct speedo gear
« on: July 09, 2006, 06:11:59 AM »

Yes, there is a chart in the P&A, but you need to know the transmission, rear axle ratio and the exact tire size. We know all but the tire size. Without that you can't work out the speedo "drive" or "driven" gears. Here's the 69 Chart to help. If you can give me the part numbers of the two gears ("driven" and "drive"), I can tell you which one's to get.


Originality / Re: correct speedo gear
« on: July 07, 2006, 09:29:28 PM »
Does THIS CHART help?


Yes, I've read that, but it doesn't explain the two different center cap Ornaments. One with "Chevrolet Motor Division Disk Brakes" and one with just "Chevrolet Motor Division". If it were true that in 67, if you wanted Rally Wheels you also had to order Disk Brakes, then it would be listed as such on the order form, and I've never seen anything that stipulates this. Of course, the CRG WHEEL REPORT shows no Rally Wheel available with Drum Brakes, so I guess that's the way it is, but I'm still not totally convinced.


Decoding/Numbers / Mystery Solved!
« on: July 07, 2006, 06:30:40 PM »
Well guys, I was directed to Mark Ellis of the 1969 CORVAIR GROUP and he stated that basically, the "D" is an indicator of the Interior Paint Color. On the Trim Tag (I'll use mine as an example), you have an Exterior Color Code ("53" Glacier Blue), an Exterior Soft Top Color ("A" White), an Interior Fabric Type and Color ("704" Metallic Dark Blue Coated Fabric) and the Interior Paint Code ("D" Blue). This told the Fisher Body workers what color to paint not only the outside of the car, but the inside. So mystery solved, my car was assembled the 1st week of December, 1968.

After Mark and I talked, I found another site called CORVAIRKID that shows this exact information for the 66 model year!



68 and 69 Camaro's came with the fluted (tall) caps. 67's had the flat caps with either "Chevrolet Motor Division Disk Brakes" (for disk brake cars), or just "Chevrolet Motor Division" (for drum brake cars).


Decoding/Numbers / Re: Interesting date on the Trim Tag
« on: July 07, 2006, 03:48:09 PM »

Yes, I read that on the 1969 CORVAIR GROUP page. Interesting reading...

One of the guys on the CORVAIR CENTER web site said there may have been a problem with the body initially (that "A" week), and sent back for some reason, then released again during the 4th ("D") week. That doesn't sound plausable because if that were true, they would have had to remove the tag to stamp the "D". I'm assuming they never did this and it's just a fluke. We've seen lots of mistakes over the years on trim tags, my 68 Camaro included. I'll just chalk it up to that.


Decoding/Numbers / Re: Question on Block codes...???
« on: July 07, 2006, 01:51:55 AM »

Correct with an addition that the engine could also have had a 3 speed manual transmission. The heads are listed as being used in 1969 applications with a note that they "could" have been used in 1968 engines built after June 25th, 1968, of which one of yours is that EXACT date!!


Decoding/Numbers / Interesting date on the Trim Tag
« on: July 07, 2006, 12:08:33 AM »
Okay guys, I realize it's not Camaro related, but I figured the CRG might be interested in this anyway...

I just purchased a 69 Corvair Monza Convertible (1 of only 521 manufactured) and the trim tag has me stumped! Note the "12AD" assembly date!! Okay, so what gives???

Any ideas?


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