ACL Main Bearings - Standard Size with extra oil clearance 0.001" - Great for high RPM or modified engines
This is to suit all JZ engines, both 1JZ and 2JZ either Non-Turbo or Turbo variants with standard size crank.
ACL Standard Size Main Bearings extra oil clearance set
The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Trimetal engine bearings.
Located in Australia, ACL has been providing an extensive replacement product range to a global aftermarket for over 70 years. Their reputation for robust metallurgy, quality, precision, innovation &, of course, performance shows through their products.
SPECIFICATIONS:
- High Strength Overlay Plate With Reduced Thickness for Improved Fatigue Properties
- Hardened Steel Backs on All Rod Bearings to Improve Bearing Lining & Retention
- Increased Crush for Improved Bearing Retention
- Elimination of Flash Plating on Back of Bearings & Maximise Grip Between Bearings & Housing
- Increased Eccentricity to Compensate for Bore Distortion at High RPM & Assist in Formation of Hydrodynamic Oil Films
- 3/4 Grooved Main Bearings to Optimise Bearing Load Carrying Surface Area & Oil Flow to Conrod Bearings
- Tight Consistent Wall Tolerances to Help Maintain Consistent Clearances
- Enlarged ID Chamfers on Bearing Edges Where Required to Accomodate Large Fillet Radius on Performance Crankshafts
- Half Type: Upper & Lower
- Material: F780
- Min. Std Shaft Size: 61,984 mm / 2.4403 in
- Max Std Shaft Size: 62,001 mm / 2.4410 in
- Min. Std Tunnel Size: 66,02 mm / 2.5992 in
- Max Std Tunnel Size: 66,035 mm / 2.5998 in
- Max Wall at Crown: 2,004 mm / 0.0789 in
- Max Overall Length: 20 mm / 0.7874 in (8103H), 23 mm / 0.9055 in (8104H)