Oversize valves

[SR20motorsports]

I have an 05 honda 450r and i had oversize +1mm xcedlyne valves and i was wonderin if JE's 13.8/1 shelf piston would work with my valves or if i need a custom piston ordered? any help would be appreciated

[859davidt]

I have oversize exaust valves and run a 13:5:1 JE pro series shelf piston with no problems.

[SR20motorsports]

K thanks i assumed i could because thats the piston i just fryed and im switchin to the 13.8. thanks for the help