max overbore

[mr monster]

whats the maximum overbore for the 4a-ge

[jamiemirror]

83mm (t.e. +2mm).

[Ivan141]

I think it's different for 3-rib and 7-rib engines...the later 7-rib can be overbored the most.. dunno which values are correct though.

[robokill]

normal oversizes go by 0,5 or even 0,25mm

standard pistons from toyota reach a max of 82 mm but some use 83

I wouldn't go higher then 82mm or than get a 7afe if you want more torgue

[mr monster]

thanks guys