I'm in the process of doing a conversion. When I pulled the head to have it 0-ringed I found a cylinder that had some piston damage. I need to replace it and wondered if I should pull them all and open the piston bowl. I'm doing full cuts, 5X22's. 5k GSK, MAX SPOOL 2.5 cam and mild head port. Is this a good idea or not? If so how much should they be cut before their rounded? Anyone have a picture of one that's done?

 

why would you want to cut the pistons i have everything you just explained and i have oversided pistons that have the same bowl as the stock ones

 

Opening the bowl will keep the fuel off the top of the piston with advanced timing.

 

or you can experiament with different injector washers and that will do it also