ACL Bearings Main Bearing Set 5M8174H-STD; Race Series Standard for Ford, Mazda Mazda 3, MX5, 6, CX7, Tribute 2.0L Duratec, 2.0L LF, 2.3L Duratec, 2.3L, 2.3L L3

Details

• Full (180 degree) grooved uppers with matching partial groove in lowers.
• Reduces interruption to big end oil supply.
• Tapered groove run-out.
• Smooths big end supply cut-off avoiding pressure pulsing and cavitation.
• A blend of characteristics to provide high strength and excellent seizure resistance.
• No flash plating is applied to further improve bearing retention and maximise heat transfer.
• Improved bearing retention from higher radial contact pressure.
• Locks the bearing into the housing.
• More effective heat dissipation through improved thermal transfer.
• Definition: Gradual reduction in wall thickness between the crown and parting line.
• ACL Race Series performance engine bearings feature increased eccentricity to improve shape adaptation to compensate for bore distortion at high speed operation.
• Assists in the formation of hydrodynamic oil film.
• Accommodate larger fillet radii on performance crankshafts.

• A blend of characteristics to provide high strength and excellent seizure resistance.
• No flash plating is applied to further improve bearing retention and maximise heat transfer.
• Improved bearing retention from higher radial contact pressure.
• Locks the bearing into the housing.
• More effective heat dissipation through improved thermal transfer.
• Definition: Gradual reduction in wall thickness between the crown and parting line.
• ACL Race Series performance engine bearings feature increased eccentricity to improve shape adaptation to compensate for bore distortion at high speed operation.
• Assists in the formation of hydrodynamic oil film.
• Accommodate larger fillet radii on performance crankshafts.

Product Description