ACL 8B743P-40 Race Series Engine Bearings

If you’re looking to enhance the performance of your classic Chevy, the ACL 8B743P-40 Race Series Engine Bearings are engineered to meet the demands of high RPM driving. These Trimetal engine bearings combine advanced design and metallurgy, making them a perfect upgrade for enthusiasts who want reliability and performance in their beloved vehicles.

Why Choose ACL Race Series Bearings?

These bearings are specifically designed to withstand the rigors of higher RPM conditions, making them suitable for a variety of 4, 6, and 8-cylinder applications. Whether you're restoring a classic or building a performance engine, these bearings are a crucial component for ensuring longevity and efficiency.

Key Features

• High-strength overlay plate with reduced thickness for improved fatigue resistance.
• Hardened steel backs on all rod bearings enhance support and retention.
• Increased crush for superior bearing retention and stability.
• Elimination of flash plating on the back improves heat transfer and grip.
• Increased eccentricity to counteract bore distortion at high RPMs, aiding hydrodynamic oil film formation.
• 3/4 grooved main bearings optimize load-carrying surface area and oil flow to conrod bearings.
• Tight wall tolerances ensure consistent clearances for better performance.
• Enlarged ID chamfers accommodate larger fillet radii on performance crankshafts.

Specifications

• Size Options: STD, 001, 009, 010, 011, 020
• Oil Clearance: Standard
• Half Type: Upper & Lower
• Material: Tri-metal with hardened steel backs
• Min Standard Shaft Size: 2.199 in / 55.855 mm
• Max Standard Shaft Size: 2.2 in / 55.88 mm
• Min Standard Tunnel Size: 2.3247 in / 59.047 mm
• Max Standard Tunnel Size: 2.3252 in / 59.06 mm
• Max Wall at Crown: 0.0619 in / 1.572 mm
• Max Overall Length: 0.889 in / 22.58 mm

Fitment

The ACL 8B743P-40 bearings are compatible with the following Chevrolet models:

• Chevrolet Bel Air (1950-1975 & 1981)
• Chevrolet Corvette (1975-1982 & 1984-2013)
• Chevrolet Impala (1975-1985 & 1994-1996 & 2000-2020)

Customer Feedback

One happy Chevrolet Corvette owner shared, "After installing the ACL Race Series bearings in my 1980 Corvette, I noticed a significant improvement in engine response, especially during high RPMs. They fit perfectly, and I feel more confident pushing my engine to its limits." Another Chevrolet Bel Air enthusiast remarked, "These bearings gave my engine the reliability it needed for weekend track days. No more worrying about bearing failure!"

Upgrade your engine with the ACL 8B743P-40 Race Series Engine Bearings and experience the difference in performance and durability that comes from a trusted name in automotive components.