ACL Race main bearings for Mitsubishi 4G63 / 4G64

ACL Race main bearings are trimetal engine bearings developed for higher-RPM operation. Their combination of design, metallurgy and engineering improves durability and support for the bearing lining.

The set includes ACL Race Series main bearings. Increased eccentricity helps compensate for bore distortion and supports 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
• Flash plating removed from 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 to help maintain consistent clearances

Suitable for: Fiat Fullback I, Hyundai Stellar I (F31/SF2), Mitsubishi Carisma I (DA), Mitsubishi Eclipse I (D2) / II (D3/A) / III (D5), Mitsubishi Galant IV (A16) / V (E1A) / VI (E39A) / VII (E5/E7/E8) / VIII (EA), Mitsubishi L200 III (K60/K70) / IV (KA/KB), Mitsubishi L300 II / III (P0V/P1V/P2V), Mitsubishi L400 I (PD/PC/PB/PA), Mitsubishi Lancer II (A17) / IV (C6/C7) / V (CB/CD) / VI (CJ/CP) / VII (CS/A), Mitsubishi Outlander I (CU/W), Mitsubishi Pajero I / II (V20), Mitsubishi Space Runner I (N1/N2) / II (N6), Mitsubishi Space Wagon I (D0) / II (N30) / III (N50), Mitsubishi Tredia I (A21).

Engines: 4G63, 4G64 (4G64, 4G63, 4G63-T). 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.