BIG END BEARING SETS - RACE
Motorsport-grade main bearings that are well suited our range of steel crankshafts. These are more heavy duty than the ACL Duraglide 780 range of bearings, thanks to an extra heat treatment process.
There are options to suit 1275 A-plus engines with 1.750" big ends in standard and +10 sizes.
For Cooper S, Sprite/Midget and 998 engines with 1.625" big ends, select the Cooper S/998 option, also in standard or +10 sizes.
We also list bearings specifically for the MED Multiweb crankshaft, which runs a large-diameter narrow-width journal.
We can supply standard size or 0.010" oversize for reground crankshafts. If you require an alternative size, please contact us for availability.
The final operation in the manufacture of ACL Race Series engine bearings is electroplating. In this operation, the bearing appearance changes to a dark tarnished colour which can vary from black / brown / blue / copper.
This colouration is restricted to the surface atoms and has no effect on bearing performance.