Sorry about a late reply.
Just hope this helps a little.
Before ordering ANY rings for this motor, you should first talk to the machine shop that did the honing.
We hone our blocks differently, depending on the type of ring the customer is going to use, and also driving habits.
They are the professionals, and the first people to ask for advice. That's why we are in business.
As far as moly rings go, we use these in most street applications, and plasma moly for most street/strip/race applications.
If the block is honed correctly for the rings being used, there is little to no ring break-in. Rings and honing procedures have come a long way since the old cast iron ring days.
Just food for thought.
Ken
www.CustomDesignPerformance.com
