Hi guys,

I bought an 01' IS300 that was supposedly rebuild with TT internals and a PFS turbo kit awhile back, and it is currently at the shop getting a head rebuild and i was told they are not TT pistons due to the markings on the top of the piston.

Every picture of a GE piston has 6 markings on top of the piston, but mine are a little different. Can anyone chime in and confirm that these are indeed non-turbo pistons?

I just noticed that GE valve reliefs are totally different than my pistons, is this a give away that they are GTE pistons after all?

Pictures here! - http://imgur.com/a/JOAja

Here is a collage i made of the 2JZGE OEM pistons that ive been able to find online


Here is another picture of GE vs GTE pistons including my pistons at the top right corner

Please help!

 

How much power was the car pushing? Think of it like this, if you are pushing 400whp+, stock pistons would have blown up. If you are around 330whp, then it is still safe for stock.