MICHIGAN 77 MS1038P20 P-Series Main Bearing Set Undersize Small Block Chevy - 0.020

The MICHIGAN 77 MS1038P20 is a P-Series main bearing set designed for 0.020 inch undersize Small Block Chevy applications. This complete main bearing kit features the trusted TriMetal construction that has made Clevite 77 the choice of professional engine builders and performance enthusiasts worldwide.

Key Features:

• Ideal for rebuilding engines where more demanding use is anticipated, such as heavy duty, motorsports, or street performance, making it the most versatile replacement engine bearing suitable for most OE applications
• High crush qualities for maximum bearing retention, high eccentricity to account for bore distortion, and reduced overlay thickness to prevent fatigue
• TriMetal design offers increased load capacity and is a suitable upgrade from Bimetal engine bearings, providing superior conformability, embedability, and fatigue resistance
• Color coded for quick and positive identification of undersizes, virtually eliminating the possibility of confusion or installation errors
• Steel back construction with copper-lead alloy layer and precision electroplated babbitt surface

MICHIGAN 77 (Clevite 77) engine bearings have an extensive racing history, winning NASCAR-sanctioned races since 1948 and serving as the exclusive bearing of NASCAR Performance. These P-Series bearings deliver the reliability and performance demanded by professional engine builders while remaining suitable for street applications requiring enhanced durability.