Join Date: Jan 2006
Location: Barrington Hills, IL
No mater if the rings are OEM or after market, the way the rings are gapped are all dependent on the engine builder. During the build process the builder will file gap the rings to what his personal preference is. Some builders will gap tighter, while others gap looser. However, if the motor is being built for a high boost application, an engine builder will usually gap the rings to a larger tolerance like you mentioned.