Odd option on LS6 Chevelle

[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]

[Don_Lightfoot]

Hi George, good to see you respond to defend yourself

Your explanation makes more sense than anything to be honest. When this discrepancy first came up a couple of years ago I did an extensive internet search on the codes and never did come up with that one which would probably have stopped any further discussion at that time. The "Y" and "V" could easily be mistaken when he was reading the codes to me on the phone. Still does not explain the 3.08 which is hard to misread from 3.31 The owner is dealing with some serious health issues right now and I don't think it is appropriate for me to call him to get the serial number. Maybe at a later date.


Sorry to take so long to respond, but I migrated to a new computer today and have had nothing but problems with ISP connections, wireless, router, etc. I hope I never have to change computers again

[Schonyenko2]

I have no dog in the fight, but people did unusual things back then, sometimes for a purpose. I believe that I remember seeing at the Gibb reunion, a 67 L78 Camaro royal plum convert, that was ordered with a 308 gear. I believe the owner ordered it that way because he wanted to run down the interstate at 100+ mph. Not everyone back then wanted to go quick fast. Some wanted to go top end stupid fast. As in out run the cops for whatever reason. I remember a particular 64 dodge that could do that pretty well. FWIW
Carry on.

[Keith Tedford]

I only remember GM having the 4.11 ratio in the 10 bolt and 4.10 in the 12 bolt. Then again, remembering isn't one of my stronger points.

[William]

[ QUOTE ]
I have no dog in the fight, but people did unusual things back then, sometimes for a purpose. I believe that I remember seeing at the Gibb reunion, a 67 L78 Camaro royal plum convert, that was ordered with a 308 gear. I believe the owner ordered it that way because he wanted to run down the interstate at 100+ mph. Not everyone back then wanted to go quick fast. Some wanted to go top end stupid fast. As in out run the cops for whatever reason. I remember a particular 64 dodge that could do that pretty well. FWIW
Carry on.

[/ QUOTE ]

If it is this one it actually had 2.73s...

[COPO_Anders]

It´s another story but I had a 1967 Impala with a 275 hp 327 that was built in Canada. It was supposed to have a 10-bolt rearend with a 3.08 posi in it. It actually had a 12-bolt with a 3.07 posi in it, and it was date-correct for the car. I´m thinking it was a glitch at the factory that made this happen. Maybe they ran out of 10-bolts and installed the standard Taxi-car 12-bolt instead ? We will never know.

[Schonyenko2]

Yep, that's it.

[Keith Tedford]

There seems to be some evidence that any car ordered with the F40 option also got the 12 bolt. True??

[COPO_Anders]

Keith, my Impala had the F40 option. But George Z. said it should have been built with a 10-bolt.