396 fly wheel

[David L.]

Re: 396 fly wheel

David,

I'm not sure if that's the original flywheel in that car.

Michael,

You are correct. You would think that it was the original flywheel because of the extreme detailed restoration. However, the flywheel is one of those parts that can not be seen so they may have replaced it with a service flywheel.

Dave

[Michael H.]

Re: 396 fly wheel

Michael,

You are correct. You would think that it was the original flywheel because of the extreme detailed restoration. However, the flywheel is one of those parts that can not be seen so they may have replaced it with a service flywheel.

Dave

David,

I think I replaced the flywheel in that car when I owned it in the 70's. The car spent most of it's life in San Francisco and and it was probably on it's third clutch when I bought it. I vaguely remember that the flywheel was burned/scored but I don't remember if it was a light weight wheel.

[David L.]

Re: 396 fly wheel

David,

I think I replaced the flywheel in that car when I owned it in the 70's. The car spent most of it's life in San Francisco and and it was probably on it's third clutch when I bought it. I vaguely remember that the flywheel was burned/scored but I don't remember if it was a light weight wheel.

Michael,

If you actually were a previous owner of the 65 Corvette 396 restored by Dave Burroughs and you replaced the flywheel back in the 1970's then the flywheel in the photo is a service flywheel assumed to be GM 3866735 (3856579 casting #).

It's interesting that the May 1965 parts catalog lists the 3866735 flywheel for the 65 Corvette (396) but the flywheels installed on the assembly line were the 3791022 (3791021 casting #) flywheels.

Dave

[Joe L.]

Re: 396 fly wheel

Michael,

If you actually were a previous owner of the 65 Corvette 396 restored by Dave Burroughs and you replaced the flywheel back in the 1970's then the flywheel in the photo is a service flywheel assumed to be GM 3866735 (3856579 casting #).

It's interesting that the May 1965 parts catalog lists the 3866735 flywheel for the 65 Corvette (396) but the flywheels installed on the assembly line were the 3791022 (3791021 casting #) flywheels.

Dave

Dave------


I don't know that all 1965 L-78 were equipped with the 3791021 flywheel. Apparently, some were, perhaps because the 3866735 was delayed or in short supply. I have no doubt that the 3866735 was the flywheel scheduled to be used for the application, whether it was installed in every car in PRODUCTION, or not.

[David L.]

Re: 396 fly wheel

Joe,

I suppose that if someone found a flywheel at a swap meet with a casting number of 3856579 (GM # 3866735) and a May or June 1965 casting date it could have been a service flywheel since they were sold over the counter in May 1965 or it could have original equipment on a 65 Corvette (396). Finding out when the 3856579 flywheel was first used on the assembly line would probably be impossible since clutches and flywheels eventually wear out and get replaced with service parts.

Dave

[Michael H.]

Re: 396 fly wheel

Michael,

If you actually were a previous owner of the 65 Corvette 396 restored by Dave Burroughs and you replaced the flywheel back in the 1970's then the flywheel in the photo is a service flywheel assumed to be GM 3866735 (3856579 casting #).

It's interesting that the May 1965 parts catalog lists the 3866735 flywheel for the 65 Corvette (396) but the flywheels installed on the assembly line were the 3791022 (3791021 casting #) flywheels.

Dave

David,

Yes, I were... er, was the previous owner of that car. I sold it to Burroughs.

Driving around the steep hills/streets of San Francisco with what can only be described as a tug boat clutch was miserable. The previous owner had replaced the clutch more than once.

I don't remember if I removed a 15# flywheel or if it was a standard wheel and I installed a new 15# wheel. (it's been almost 35 years) I just remember that I changed it because it was heat cracked.

That was one of the 1st 396 cars so I suppose anything is possible as far as what flywheel it was born with.

[John H.]

Re: 396 fly wheel

It's interesting that the May 1965 parts catalog lists the 3866735 flywheel for the 65 Corvette (396) but the flywheels installed on the assembly line were the 3791022 (3791021 casting #) flywheels.

Dave

Dave -

The 3791021 casting flywheel was also used on the '67-'69 Z/28 Camaro.


Flywheel3791021.jpg

[Joe L.]

Re: 396 fly wheel

Dave -

The 3791021 casting flywheel was also used on the '67-'69 Z/28 Camaro.


[ATTACH=CONFIG]48947[/ATTACH]

John-----

Yes, and that's the flywheel GM specified for the application.

[Tom P.]

Re: 396 fly wheel

Dave -

The 3791021 casting flywheel was also used on the '67-'69 Z/28 Camaro.

That is NOT what is considered a lightweight flywheel, right?

[Joe L.]

Re: 396 fly wheel

That is NOT what is considered a lightweight flywheel, right?

Tom-----


No, the 3791021 is a "standard weight" flywheel.

[David L.]

Re: 396 fly wheel

Dave -

The 3791021 casting flywheel was also used on the '67-'69 Z/28 Camaro.

John,

I have had a few 3791021 flywheels only the years with 1968 and 1969 casting dates but I sold them to Z28 owners.

Dave