Should anything happen that you need to replace a damaged P/C we will supply a 1/4 set. This is to support our customers only and your proof of purchase from us is required. If they were purchased through one of our dealers, you must have them order for you or they must give you our invoice number, date of purchase and part number for our reference.
Once we have verified this information to be accurate we can provide the correct replacement part. If you are not prepared to give us this information, don't ask, as we are unable to find it otherwise and will not make any exception to this rule.
Break a ring when installing them? In some cases we can help you out so you do not have to buy a complete set. Again, all of the above information is required or do not ask.
Also see GB 801-P/C for more Technical Information and data about piston and cylinder applications for all out high performance. The article covers preparation, pin heights, clearancing and why and what designs do. Required reading for serious engine builders.