5150 AutoSport Block Fire Ringing Service, 8-Cylinder BMW Engines SC7229 Ferrea valve springs are meticulously

Ferrea valve springs are meticulously heat-treated and stress-relieved

Squeeze every horse power out of your BMW S55 engine with our Engine Block Sleeving Service

CAT Cams Rocker Arm Shaft and Oil Connector Bridge Kit

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(7) E Hub Plates (OEM = 5)

5150 AutoSport Block Fire Ringing Service, 8-Cylinder BMW Engines SC7229 Ferrea valve springs are meticulously5150 AutoSport Engine Block Fire Ring Installation Service for 6 Cylinder BMW Engines Fire ringing an engine block, especially for high performance, high boost turbo applications, offers several mechanical advantages. These advantages are primarily related to improving the engine's ability to handle high combustion pressures and temperatures. Price includes degrease and wash, CNC machining, block resurfacing, and custom fire ring hoops. Here are the