Icon pistons, KB pistons, OE Silv-O-Lite pistons, Diesel pistons and Harley pistons. All manufactured by United Engine and Machine. They have been making pistons since 1922. Family owned business, going into the fourth generation. I retired from there in 2004 and wish I had stayed working. A great family and without a doubt the best place I've ever worked.
They were the innovators of the hypereutectic pistons, KB. In my humble opinion their pistons are as good or better than any on the market.

BradH, the rough finish is for oil retention. The weight advertised is for std. size each oversize adds weight.