BMW S55 Sleeving Service
We offer the machining service on your BMW S55 block to install our custom designed LA Flanged Sleeves into your S55 block. This is a great solution for overboring an engine or repairing an block with too much damage. The stock S55 block has a steel liner that is very thin (about .010") so any minor damage can take it beyond repair with a simple bore and hone. Our sleeves are built to handle boost and do not compromise the strength of the block. They can be used with the stock S55 pistons or with some of the custom CP pistons we offer for sale.