Ran across something odd today, picked up one of my old stock rods/pistons and seen that it had Mahle stamped in the inside of the piston.. anyone know that the factory pistons are Mahle?? They dont have the waffle design that most cast pistons have either, they are smooth underneath.. thought that was only in forged, or is it on the hyper pistons too?? thought i would share as i picked up another rod/piston combo out of another ls1 and it said Mahle in it too.. thoughts??

 

Yep, Mahle is a piston supplier to GM.

 

Yeah i knew they were for the I6's and I5's but didnt know they made the ls1 pistons.. what are the stock ones made out of??

 

welcome to 1997
made from hypereutectic material

 

haha yeah i know im a little late on figuring this out but oh well.. prolly some more ppl out there that didnt know that either so.. i guess its just some more random information for the internet lol