Enginetech BC399J010 Main Bearing Set for GM Chevrolet Big Block 366 396 (.010 Undersize)

The Enginetech BC399J010 is a precision-engineered crankshaft main bearing set designed specifically for GM Chevrolet big block 366 and 396 cubic inch engines. This bearing set features .010" undersize dimensions for crankshafts that have been machined or require tighter tolerances during engine rebuilding.

Advanced Bearing Technology:

• Manufactured using high-quality aluminum-silicon alloy material for superior performance and durability
• Precision-controlled parting line chamfers cut at correct angles to ensure proper oil flow without reducing oil pressure
• Consistent bearing thickness for proper oil clearances, manufactured on state-of-the-art equipment
• High load capacity with excellent anti-friction properties for wear resistance and anti-seizure protection
• Embeddability characteristics that provide extra protection during engine operation

Quality Construction:

• Made from high-strength materials designed to meet or exceed OEM specifications
• Manufactured in ISO, QS, and TS certified quality facilities
• Thrust washers included where appropriate for complete installation
• Precision engineered for hassle-free installation and optimal engine performance

Enginetech has been the trusted choice of professional engine rebuilders for over 25 years, delivering reliable performance for both professional mechanics and DIY enthusiasts. This main bearing set is essential for engine rebuilds, providing the precision fit and durability needed to restore your GM big block engine to optimal operating condition.