factory pistons

Mandrel Bent

A line hone is a machining process that can be used to resize and reshape the main bearing bores

Exceeding this limit may cause failure

Kelford Camshaft & Valve Spring Kit for BMW B58 Gen 1 Spring Seat Pressure:110 lbs factory pistonsPlease note: All camshafts must be installed by a professional engine builder, using the provided camshaft specification sheet. The builder is responsible for verifying piston to valve clearance and setting engine timing according to the cam card specifications, not the factory settings. Maximize the performance potential of your BMW B58 engine with this complete Kelford Camshaft and Valve Spring Kit, now available from 5150 AutoSport. Designed