Odd option on LS6 Chevelle

[Don_Lightfoot]

I certainly can’t disagree with your comments Rick.

Here’s the story on the gears Pete. Shortly after purchase he removed the carrier and gears and replaced them with a new carrier and 4.10’s. He apparently still has the original parts stashed somewhere. Like a lot of us at this age, his memory from 35 years ago isn’t the best, but he seems to think the removed gears were 3.31’s.

I suggested to check the code on the rear axle housing. The car has been in storage forever and a day since restored in the 90’s. He really doesn’t worry too much about this stuff, nor has the interest in these oddball things like a lot of us do. Maybe someday he’ll go check it or actually get the car out again.

Anyway, just wondering if it was in fact a GM Canada glitch. He’s also not interested in getting another letter from them at this point.

[Mr70]

I'd be interested to learn more background on this car Don,because I think it was possible on a very select few.

What plant was it assembled at?
What dealer was it delivered too and on what date?
How long after delivery was it sold to it's 1st owner and for how much?

At least two other LS-6's got a similar ratio on the line that I know of back then.
One being an RPO GV-4 3:36,the other an RPO GV-8 4:11 ratio,both by the ordering dealerships special request.
Both had 3:31/4:10 callouts respectively on their rearend tubes,before the gears were swapped out at the factory it appears.
Both of these Chevelles were found to be "Brass Hat" cars as well,with paper work to back it up.
I've also come across one 1970 L-34 SS Chevelle that looks to have come with a 2:73 ratio,yet to date,has not been substantially proven to be assembly line installed with it.

[Don_Lightfoot]

OK Rick. There was apparently no dealer shown on the GM Canada letter. Perhaps they didn't do that back then. It is believed to be from a local dealer here in Eastern Ontario.

Here is the information he read to me from GM Canada Vintage Services:

- Date of GM letter is April 25, 1994.
- Assembly Plant Baltimore.
- Shipping date Jan. 27/70.
- A31 Power Windows.
- A51 Bucket Seats.
- D55 Console.
- D88 Body Striping.
- F41 Suspension.
- GV2 3.08 Rear Ratio.
- G33/34 computer selected springs.
- G80 Positraction.
- JL2 Disc Brakes.
- J52 Power brakes.
- LS6 454/450 engine.
- M22 HD four speed.
- N40 Power Steering.
- PL4 White Lettered Tires.
- P60 HD battery.
- U14 Gauges.
- U63 Am Radio.
- U76 Windshield antenna.
- U80 Rear speaker.
- V48 Increased coolant.
- W84 Additional Fuel.
- ZK8 tire pressure sticker.
- ZL2 Cowl Induction Hood.
- ZQ7 Canadian warranty booklet.
- Z15 SS package.
- 756 Black trim.
- 28 Fathom Blue.

[Mr70]

Thanks Don.
Can the 1st owner be found today?
I wonder if he paid a significant discount price,possibly meaning it was driven extensively daily and for long distances before he took possesion of it...

[markjohnson]

Wow, I can't believe that if there was a 3.08 geared LS-6 Chevelle built, that there was a 2.20 First gear close-ratio Muncie attached to it. With that relatively long-duration camshaft and that combined "launch ratio" of 6.77 (2.20 x 3.08), this just had to be the biggest slug of an LS-6 ever made. I'm having trouble believing that they would even produce this. Maybe with a wide-ratio 2.5 Muncie or a TH 400, I could see.

[GaryH]

[ QUOTE ]
Wow, I can't believe that if there was a 3.08 geared LS-6 Chevelle built, that there was a 2.20 First gear close-ratio Muncie attached to it. With that relatively long-duration camshaft and that combined "launch ratio" of 6.77 (2.20 x 3.08), this just had to be the biggest slug of an LS-6 ever made. I'm having trouble believing that they would even produce this. Maybe with a wide-ratio 2.5 Muncie or a TH 400, I could see.

[/ QUOTE ]

I had a 64 327-365 Vette and planned a trip from PA to AZ back in the day. It had a close ratio 4sp and I stuck a 3.08 in it for the trip. I can tell you for sure it was a slug out of the hole with that high reving solid lifter cam. I got blown off by a 350 2bbl Chevelle at a red light in Tucson. I was so embarrassed! I could run 1st gear up over 70MPH no problem.

[vintagez]

Please provide me with the VIN number and date it was done and for who, I will check and post back on here the result of a recheck, I am thinking it should be GY2 for a 3:31 but would like to check for myself. [email protected]