Hello Franck
I have read your message ( because i want to make the same modification).
Did you manage to do it ? What is the solution that you use for the different stroke ?
Thank you for your answer.
Raphael
I’m not sure that you are aware, but this post is 13 years old. Some of the members that posted may not reply. I would start a new thread and you will get better responses.
I’m sure that Hotrod Lincoln would respond as he has a current project to upgrade a 216 to a full pressure, increased cubic inch sleeper.