Hey I've got some woosner forged pistons that worked super in my first gen ecotec that i'm turbo charging.
I wasn't aware they make anything for gm, Opel, etc that an ecotec would he found in. If so, its a piston for another platform that happens to fit the right spec. I know they make older Saab stuff, but nothing with an eco...maybe they're Astra pistons lol.
I'd actually be curious to know what the pistons are actually made for if this is was really a legitimate post and not someone stuffing snowmobile parts into their car haha
Could also be k20a pistons
At least, they'll physically fit in the cylinder bore.
"In Oldskool we trust"