K Series Parts has used ACL bearings in almost every k-series motor we have built. We highly recommend them for any K20 and K24 engine build!
The ACL High Performance Standard thickness is -0.001" or -0.025mm smaller than their standard bearing to allow extra oil.
|Part Number:||5M1959HX / 4B1972HX / 1T1957-STD|
|Bearing Thickness:||Standard High Performance|
Not for K20A3 Cranks