Sealed Power Competition Series Main Bearing Set - SB Chevy 302, 305, 307, 350 - 3/4 Groove - .020" Undersize Safety Equipment Catalog Catalog The adjustable mechanical advance assembly

The adjustable mechanical advance assembly allows you to accurately and easily modify the advance curve to match your specific application

3-spoke design

125 head bearing

GM A-Body 1968-72 / F-Body 1970-81

2004-2005 BMW 645Ci

Sealed Power Competition Series Main Bearing Set - SB Chevy 302, 305, 307, 350 - 3/4 Groove - .020" Undersize Safety Equipment Catalog Catalog The adjustable mechanical advance assemblySealed Power builds engine bearings using materials and alloys engineered for demanding applications. We tailor our bearings to withstand punishing racing conditions. Our bearings are proven winners in NHRA, NASCAR(R) and IHRA competition. Sealed Power engine bearings include a patented contoured flange design that increases thrust load capacity and a three quarter length oil groove that enhances lubricity without compromising load capacity. The