MAHLE MS-1432P-20 P-Series Tri-Metal Main Bearing Set Undersize - 020

The MAHLE MS-1432P-20 is a professional-grade crankshaft main bearing set designed for Ford 351M, 351W, and 400 cubic inch V8 engines requiring .020 inch undersize bearings. Part of the renowned Clevite 77 P-Series bearing family, this set is engineered for high-revving engines and demanding applications including heavy-duty use, motorsports, and street performance builds.

Advanced Tri-Metal Construction:

• Steel backing provides superior strength and structural support
• Cast copper-lead intermediate layer withstands heavy engine loads and increases fatigue strength by approximately 20% compared to powdered metal bearings
• Electroplated babbitt overlay on the running surface delivers exceptional wear resistance and critical surface characteristics
• Higher eccentricity and crush factor design compensates for high-load factors and distortion in performance engines

Key Features:

• .020 inch crankshaft undersize for use with machined crankshafts
• 1/2 groove design with oil grooves extending around both halves for enhanced oiling
• Superior conformability, embedability, and fatigue resistance compared to OE bimetal bearings
• Provides margin of forgiveness for engines with less frequent maintenance intervals
• Excellent choice for engine rebuilds and upgrades from bimetal bearings

MAHLE Clevite bearings are recognized as the gold standard in engine bearing technology, offering properties and performance characteristics not found in many original equipment bearings. The P-Series design produces an ideal combination of slipperiness, durability, and load-carrying capacity for reliable engine operation.