Piston type/brand ID?

[modnrod]

Not important at all really, just curiosity.

85.5s, but they seem lighter than most stockers (I think, from memory..........which is crap!  ).
They have Bras M57 and P865 cast into them.



They came out of an engine built in the mid-70s in California somewhere if that helps (bit of a story how it got out here).

[Martin S.]

They list the Weight of Piston, piston rings & Pin = 513 grams "Mahle" forged & 563/588 grams for cast so yours are pretty close. http://www.1800vw.bizhosting.com/piston_in.cyl.htm

[modnrod]

Thanks Martin. I knew of the weight charts, but I thought the 560-ish was without pins/rings/clips.
I'll put them on the "emergency stocker spares" shelf.