Enginetech BC303J030 Main Bearing Set Undersize Ford - 0.030 5.4L 330

The Enginetech BC303J030 is a precision-manufactured main bearing set designed for Ford 5.4L (330 cubic inch) engines with crankshafts machined 0.030 inch undersize. This complete main bearing set provides the critical interface between the crankshaft and engine block, ensuring proper oil clearances and reliable engine operation during rebuilds.

Key Features:

• 0.030" undersize specification for reground crankshafts
• High-quality bearing material engineered for durability and wear resistance
• Manufactured to strict OE specifications for proper fit and clearances
• Complete main bearing set for full engine rebuild applications
• Designed for professional engine rebuilders and experienced technicians

Enginetech has been a trusted name in engine rebuilding components since 1982, offering professional-grade bearings manufactured in ISO-certified facilities. These main bearings feature advanced materials that provide excellent load capacity, anti-friction properties, and embeddability for superior protection and durability. Professional installation and proper clearance measurement with precision tools is required for optimal performance.