Main Bearing Set (insert Style) Model A A6331/40, A-6331-040

Main bearing set (insert style) for Ford Model A 1928 to 1931 A6331/40, A-6331-040. Use With A6303

This is the 40 thou version of A6331 modern main bearing set. 

Modern, insert main bearings are not a direct replacement for the original babbitt style bearings. The block MUST be machined to accept these new bearings.

We off this service in house and can line bore your block to fit the insert bearings.

Each set includes instructions. These are the correctly sized bearings to use with all NEW counterweighted crankshaft