-From a customers rewquest to improve performance of the under powered 1ZZ engine.
-OEM over size pistons are not available for overhauling. The block must be exchanged.
-We strongly recommend the use of a liner due to the strength limits of the standard cylinder block. *Power Liner required.
*1:Crown volume is measured "from the piston shoulder"/"from the deck of the block".
*2:Piston shoulder height is measured from the deck of the block.
*3:The compression ratios given above are only to be taken as a guide, measurements are required.