ACL Bearings 4B1780H-STD Race Series Connecting Rod Bearing Set Toyota 4AGE 4AGZE

The ACL 4B1780H-STD Race Series connecting rod bearing set combines advanced design, metallurgy, and engineering to deliver high-performance trimetal engine bearings designed specifically for Toyota 4AGE and 4AGZE 1.6L engines. These race bearings are manufactured with tri-layer metal construction featuring hardened steel backing to withstand high RPM conditions, high stress loads, and extreme temperatures.

Key Features:

• Manufactured to exacting tolerances with particular attention to wall thickness accuracy, ensuring reliable fit and consistent clearances
• Large chamfers to accommodate larger crankshaft fillets and maximize load carrying capacity
• Increased crush and tighter wall tolerances for improved bearing retention and seating
• Improved overlay with reduced thickness for increased fatigue strength
• Increased eccentricity to compensate for bore distortion at high RPM
• Enlarged ID chamfers on bearing edges to accommodate performance crankshafts
• No silvery tin flash plating on bearing backs to prevent high spots and distortion under high loading and heat

Standard size bearing for 42mm crankshaft journals with material designation F781. This set includes bearings for four connecting rods and is compatible with Toyota 4A-GE (16V and 20V) and 4A-GZE supercharged engines. ACL Race Series bearings are recognized as a premier brand throughout motorsports and are standard components in race engines from sport compact drift racing to NASCAR competitions.