ACL Race conrod bearings for Nissan SR18DE, SR18Di, SR20DE, SR20DET, SR20Di and SR20VE engines with standard crankshaft. ACL Race Series is developed for tuning, motorsport and performance engines where higher demands are placed on load capacity, heat dissipation and reliability than with standard bearings. The bearings are often used for engine rebuilds and high-output SR-series engine builds.
ACL Race Series connecting rod bearings are manufactured from high-strength F781 tri-metal material with hardened steel backing, copper/lead alloy and durable overlay coating. The construction provides improved load capacity, efficient heat transfer and a stable oil film under high rpm and loads. ACL Race bearings are among the most widely used bearings in motorsport and performance engine building.
The 4B2960H series is supplied as identical bearing halves and is manufactured for standard crankshaft dimensions. Correct measurement of crankshaft, bearing housing and oil clearance is always recommended to ensure optimal service life and reliability.
Specifications:
Type: ACL Race conrod bearings
Material: Tri-metal copper/lead alloy (F781) with steel backing and overlay
Crankshaft: Standard size (STD)
Connecting rod: For original or aftermarket connecting rods
Oil clearance: 0.020–0.067 millimetres
Bearing design: Identical bearing halves
Contents: 16 bearing halves (8 complete connecting rod bearings)
ACL part number: 4B2960H-STD
Maximum overall length: 17.10 millimetres
Maximum shaft size: 47.974 millimetres
Maximum housing bore size: 51.013 millimetres
Maximum vertical oil clearance: 0.067 millimetres
Maximum wall at crown: 1.503 millimetres
Minimum shaft size: 47.956 millimetres
Minimum housing bore size: 51.000 millimetres
Minimum vertical oil clearance: 0.020 millimetres
Fits engine code:
SR18DE / SR18Di / SR20DE / SR20DET / SR20Di / SR20VE
