83mm is the largest i think. possibly 83.5 but that is wafer thin bore walls. i really wish i did a stroker kit to go 2.1 but at the time i was keeping my gt28rs which was a little bit small for 2.1.
i may still do it.
2mm overbore is 120-200quid but you need to strip engine complete
i may still do it.
2mm overbore is 120-200quid but you need to strip engine complete