Hey all! I'm currently working on rebuilding my engine and trying to figure the best approach. I'm likely going to get new pistons and rings, as its affordable and seems to solve my compression issues, however I don't think I want to use my liners as they are, being they're likely well worn.
My two main options are
1.bore out current liners to fit 499cc pistons
2. Get 499cc liners and pistons and very slightly bore out the case.
I've asked the guys at FD Ricambi the OD of their 67.4mm liners, which they said 75mm. My current 479cc liners are 73.8. So there is a small difference.
Has anybody done this? Have any suggestions?
I am aware if I'm doing this kind of work, I could get much bigger pistons for better performance, but my head work was already done, I have new exhaust already and my carb is fine. I don't need a hot rod, I just want it to function as it should!
Thank you!
My two main options are
1.bore out current liners to fit 499cc pistons
2. Get 499cc liners and pistons and very slightly bore out the case.
I've asked the guys at FD Ricambi the OD of their 67.4mm liners, which they said 75mm. My current 479cc liners are 73.8. So there is a small difference.
Has anybody done this? Have any suggestions?
I am aware if I'm doing this kind of work, I could get much bigger pistons for better performance, but my head work was already done, I have new exhaust already and my carb is fine. I don't need a hot rod, I just want it to function as it should!
Thank you!