383 Flywheel Questions
Thread Starter
Teching In
Joined: May 2007
Posts: 20
Likes: 0
From: Michigan
383 Flywheel Questions you guys with lt1 383's...
Do you guys use a Stock Flywheel? Im Told the stock lt1 is external balance at the flywheel and the 383 is internal and needs a neutral balanced flywheel.
Anyways, I have a bad vibration at 2500rpms on up and I think its the flywheel. I dont remember a Vibration when the car was an auto...
Do you guys use a Stock Flywheel? Im Told the stock lt1 is external balance at the flywheel and the 383 is internal and needs a neutral balanced flywheel.
Anyways, I have a bad vibration at 2500rpms on up and I think its the flywheel. I dont remember a Vibration when the car was an auto...
That needs to be fixed before you turn the key again or it will become expensive. I use a stock flywheel, but had it zero balanced from the machine shop before I installed it...
If your 383 was neutral balanced, it's an easy fix. Just get a neutral flywheel.
If it was not, you have to take it apart and start over.
The 355 I bought back in March taught me that lesson.
I should have taken it apart and had the balance checked before I installed it.
That fiasco cost me a whole race season.
The new 383 is neutral internal with a neutral SFI-approved flexplate
If it was not, you have to take it apart and start over.
The 355 I bought back in March taught me that lesson.
I should have taken it apart and had the balance checked before I installed it.
That fiasco cost me a whole race season.
The new 383 is neutral internal with a neutral SFI-approved flexplate
Thread Starter
Teching In
Joined: May 2007
Posts: 20
Likes: 0
From: Michigan
I had the whole thing balanced with the Flexplate when it was still an auto. Afteri got It running I Switch to 6-speed with a stock flywheel. I had the clutch and flywheel zero balanced but i still get a BAD Vibration at 2500+ RPM is there anything else i should check? maybe the flywheel is not true?
I had the whole thing balanced with the Flexplate when it was still an auto. Afteri got It running I Switch to 6-speed with a stock flywheel. I had the clutch and flywheel zero balanced but i still get a BAD Vibration at 2500+ RPM is there anything else i should check? maybe the flywheel is not true?
Look at the flexplate, there should be marks on it indicating what was done.
Or take it to a shop and have them tell you.
That will give you an idea of what needs to be done before you pull your flyeel off.
