PPM Racing Australia is proud to release the products you have all been asking for!
Our New Range of PPM Racing Australia Custom High Performance Ductile Iron Sleeves for BMW F10 F90 M5 S63 / N63 engines….
Our sleeves come semi finished at 88.5mm Bore,
Maximum Bore size possible with our sleeves is 94mm!
Sold as 8pcs Kit….
Why Sleeve an Engine?
We sleeve engines for a couple of reasons. The primary reason for sleeving an engine to either repair a cylinder bore or protect it from damage in the first place. Sleeves can also be used to restore a particular bore size if a cylinder has to be “bored out” to repair a cracked or otherwise damaged engine. Some engine builders will also “overbore” their cylinders to increase the engine displacement. Sleeves intended for high-performance applications can greatly protect the engine from these extreme pressures.
Most alusil/aluminum OEM automotive engine blocks use dry, Ductile Iron cylinder sleeves in their engines. A dry sleeve is press fit into the bore of the block. The aluminum bore transfers heat from the sleeve to the coolant contacting the bore.
Delivery can take up to 6-12 Weeks if we don’t have stock….
