Zollner pistons

[Princess Valiant]

Anyone ever heard of Zollner pistons?

I found a set new in the box for a 383 .30 over.

How can I find out what compression these are or any info?

 

[MRL Performance]

Bottom of the barrel stock type, super heavy, cast pistons. You can buy a asset of SBC pistons by them for less than $100 new.

To find out info on them, use the cross reference p/n's listed on the box for the Badger/FM/Silvolite.