Okay my block needs to be bored out to at least 81.5mm and i was previously using CTR pistons in my block and want to continue using CTR's. Now my question is that where can i find some CTR pistons that are .50 over sized?? Or if you guys know of other pistons that will yield me the same compression in .50 over sized?? Pretty much im looking for Pistons that will fit in there and give me pretty much the same compression ans CTR's would thanks guys.

THis is a gs-r motor.

 

Or how much would the pistons have to be OVersized in order to reach my 81.5 goal?? What would my mm be if i get .25 over?? will it be 81.25??

 

bump

 

RS Machines might be able to hook u up, check out the sponsor market place and fine their thread.

 

yeah i found that thread and am really interested in those but are the valve clearances the same as the stock CTR's???? because i had no clearance issues with the standard ones.

 

talk to rs machines. i got some 81.5mm P30's from him

 

thanks a lot guys i found what im getting. 81.5 CTR pistons from rs machine

 

NP..Thats awesome, im ordering some oversized ITR pistons from them this week!