Help identifying two chainsaw cylinders

[k_kindig11]

I got these two cylinders in a box full of husky parts, mixed with a few stihl parts. I have tried researching what these cylinders are for, and I'm coming up empty. Anyone have any idea what they are? One other cylinder I ended up getting was a Jonsered 70.

Cylinder #1.

Marked 50ZN7 W1. It measures 50mm bore.

Ok here is cylinder #2. Gilardoni 6 stamped on it. Bore measures 42mm.

 

[firefighterwolf]

Cylinder #2 looks like a 242xp cylinder to me. I have no way to confirm though.

 

[SawTroll]

Cylinder #2 looks like a 242xp cylinder to me. I have no way to confirm though.

Maybe a Husky 42 one, if it is open port?

50zn7 doesn't immidiatety ring any bells here, but I don't know what numbers was on the 266 ones....

 

[Jacob J.]

Cylinder #2 looks like a 242xp cylinder to me. I have no way to confirm though.

Yep, cylinder number 2 is 242. If it had open transfers, they would go all the way to the base. Cylinder #1 is Stihl 045, and it's an early one- for the 045 that used the 50mm piston that had one thick ring and one thin ring.

 

[k_kindig11]

Yep, cylinder number 2 is 242. If it had open transfers, they would go all the way to the base. Cylinder #1 is Stihl 045, and it's an early one- for the 045 that used the 50mm piston that had one thick ring and one thin ring.

It amazes me how good you guys are. Thanks so much.