Perfect Circle MS109P10 Main Bearing Set Ford Flathead V8 .010 Undersize

The Perfect Circle MS109P10 is a precision-engineered main bearing set designed specifically for Ford Flathead V8 engines with 239 and 255 cubic inch displacement from 1942 to 1954. This P-Series bearing set features .010" undersize dimensions for engines with crankshafts that have been machined undersize during rebuilding.

Key Features:

• TriMetal construction with steel back, copper-lead intermediate layer, and Babbitt overlay
• .010" undersize for use with machined crankshafts
• P-Series design offers increased load capacity over standard bimetal bearings
• Enhanced embed ability accommodates dirt and debris for extended bearing life
• Suitable for heavy-duty, motorsports, and street performance applications
• Complete main bearing set for full crankshaft rebuild

Perfect Circle bearings, now part of the Clevite/MAHLE family, are engineered to provide superior protection in demanding environments. The P-Series TriMetal design offers improved forgiveness for engines that may not receive frequent maintenance, making it an excellent choice for classic vehicle restorations and performance rebuilds. The enhanced load capacity and durability make this bearing set ideal for engines that will see hard use or extended service intervals.