Results 1 to 12 of 12
Thread: Flywheel for 1 Piece Rear Main
Threaded View
-
06-22-2008 #7
Starting The Transformation
- Join Date
- May 2005
- Posts
- 140
JIm,
With all respect, I think your statement that all ZZ ( and by inference, all one piece seal engines) are considered as internally balanced really adds to the confusion concerning the question that Windycity1 posted. Are they internally balanced? The answer is no, you can't put a neutral balanced flywheel ( which is what you would use on an internally balanced engine) on a ZZ style or one piece crank UNLESS that crank was internally balanced by a machine shop. Unmodified one piece seal cranks from GM must use a counterbalanced flywheel. Aftermarket one piece seal cranks that state they are internally balanced ( or can be modified for internal balance) can, if the necessary balance is done.
Not trying to be stupid about this, just hate to see someone use the wrong flywheel.
For anyone that's unsure, here's an exerpt from a GM Performance Catalog:
"In addition, all cranks which use a one piece seal require a counterweighted flywheel for proper balance"
John
-
Reply With Quote
