What are these P/C

[Shaun @ Tru6]

Found these in a barn with a lot of other stuff. Any ideas on what they are? What's the best way to clean them up? My diesel-purple parts cleaner is great for steel and Al, but Mg not so much.

[Flat6pac]

with out the numbers inside the piston, they look like 80mm 2.0S 67/68
Bruce

[BURN-BROS]

pistons look like 67-68 S to me.

[tom1394racing]

Shaun

Look inside the dome for the Mahle P/N

I'll bet 67-68S with Aaron (80P5E)

I use soda blasting for pistons and outside of the cylinders. I use scotchbrite hone as the first step in cleaning the inside bores of the cylinders.

Use this reference as a guide

[tom1394racing]

Here's the 67-68S 2.0S piston

[Shaun @ Tru6]

thanks guys, a few pics. they all have the E (maybe a Mahle logo?) on the inside and -1 on the crown. Haven't gone through them thoroughly, one face is badly pitted and here's a broken skirt, but they might be usable to someone when what they are is nailed down. they are 80mm.

[Shaun @ Tru6]

Here are pics of 2 of the pistons with best stamping on the crown.

[BURN-BROS]

Woops wrong thread