ACL Race main bearings for Vauxhall LS1 / LS2 / LS3

ACL Race Series main bearings are tri-metal engine bearings designed for higher RPM conditions. Their construction combines a high-strength overlay plate with reduced thickness and increased eccentricity.

The set is available in standard versions and with 0.025 mm extra clearance. 3/4-grooved main bearings optimize the bearing load-carrying surface area and oil flow to the conrod bearings.

• High-strength overlay plate with reduced thickness for improved fatigue properties
• Increased crush for improved bearing retention in the housing
• Elimination of flash plating on the back for improved heat transfer and grip in the housing
• Increased eccentricity to compensate for bore distortion at high RPM and assist in forming hydrodynamic oil films
• Tight, consistent wall tolerances to help maintain consistent clearances

Suitable for: Vauxhall Monaro I (V2X), Vauxhall VXR8 I (VXR8).

Engines: LS1, LS2, LS3. Please check your vehicle’s engine code (registration document or VIN) before ordering; if in doubt, contact us and we will check for you.

Sizes

STD is the standard size for an unground crankshaft. Undersizes (−0.25 mm, −0.50 mm …) are for a reground crank, and “+0.025 mm clearance” (X) is for highly stressed engines. Your machine shop chooses the size after measuring.