Sorry i couldnt be of more help man, but from memory Nebuchenerzer (sp?) was doing something along simular lines...
85' JDM TA63 GTTR sedan - Godlike
89' JDM GZ20 Soarer - 1jz + R154 bus
Originally Posted by joeschmo_57
The 01 02 03 at the end of the part numbers refers to minor differences in outside diameter of the piston. Which is nothing to worry about if you are getting your block bored to suit the pistons. The difference is small 01 being the smallest and 03 the largest and I think the difference in size is about 0.10mm from 01 to 03. If you use these pistons you get the block bored to 81mm (this can change depending on application) as the pistons are slightly smaller eg. 80.9mm. Hope this helps a bit.
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