ACL Race Series HX:
Rods - ACL #4B1972HX (47.98-48.00mm)
Mains - ACL #5M1959HX (54.98-55.00mm)
Thrust - ACL #1T1957 (61.25-61.50mm)
The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Trimetal engine bearings. Designed to withstand higher RPM conditions, ACL Race Series Engine Bearings are available for many of the popular 4, 6 & 8 cylinder applications.