As som of you know I bought this car last year with alot of mods but needing assembly/love, well I got it together and all was well. I was told it had an lq9 and verified a 6.0 by casting numbers and block i.d. This year I had to go into the motor to replace lifters and when I got the head off I see these pistons, they do not look like any lq9 or lq4 ive seen before, anyone have any ideas? I did clean a piston off trying to find a part # but no luck. I got a good deal on the car but never realized how much of a pain it was going to be working on something I didnt build (not knowing what was used everywhere) previous owner is a no go as well. Thanks.

 

Those look to be aftermarket pistons. Looks like a dished piston with a dome on top. Get some better pics.

 

 

Aftermarket low compression pistons. Good chance they are forged pistons.


They look a lot like these, saw some JE that look pretty similar too.

https://www.theturboforums.com/threa...-build.356060/

 

They dont appear to be forged.. but I know thats not certain, I thought they were aftermarket but figured I would check here anyway to see if maybe there was something I dodnt know about

 

Absolutely not an OEM piston. And most pistons with valve reliefs and dishes or domes are forged, that's why I said they are likely forged.