[Probird]

At the beginning of the season I freshened my IA2 block with new pistons. I weighed one of the old pistons and made the new ones match. I had a problem last year at the end of the season. I have ordered 4 new pistons to replace the damaged ones. I used the job # from the existing pistons that I ordered for it last year. I got them and they are 9 grams lighter for some reason. I decided to weigh the pins to see if I could find some that were a little heavier. As I weighed them I had 6 that weighed 153 grams and 2 that weigh 144 grams. Then I remembered I had 4 pistons that were .005 bigger than the other 4. I assume that’s why I had some lighter pins although I only have 2 that are lighter. This whole time I’ve had 2 pistons assemblies that are roughly 9 grams light. Now with the new pistons I can use the heavier pins to make them match the old pistons with the lighter pins. Problem is I only have 2 light pins. Is it worth getting 2 more light pins so all the pistons assemblies match? Or is 9 grams on 2 of them not worth worrying about? It’s been running for about 6 years with 2 of them weighing different and I haven’t noticed any problems.