On Sat, 6 Jul 2019 07:49:56 -0400 (EDT), justan wrote:

Curtis Wrote in message:
Hello,I am looking for parts for my boat,dont wanna order the wrong headgasket set,do I want to confirm the year of my engine,but I am hung upon the casting number decoding.The boat is a 98 chapparrel,with a GM mercruiser 4.3l v-6.cant be surethat it's the original engine though.any pointers?block casting numbersare-T01129kp and -10105867 amd-A069.The head casting is -14094768 and -A039.Any help would be much appreciated.-- Curtis

This is the part you want

https://www.marinetradingpost.com/pr.../glm-36100.htm

Good job. Can you do that for Moto Guzzi parts also?