ACL Race main bearings are trimetal engine bearings designed for operation at higher RPM. Their combination of design, metallurgy and engineering supports consistent performance under increased engine loads.
The set features 0.05 mm extra clearance along with construction details intended to improve bearing retention, heat transfer and the formation of hydrodynamic oil films.
- 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
- 3/4 grooved main bearings to optimize load-carrying surface area and oil flow
- Tight, consistent wall tolerances and enlarged ID chamfers where required
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.
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