ACL is an engine builders top choice for their quality and consistency. Buy with confidence; you will find ACL in many cars on road as they are an Original Equipment supplier. Many racers, especially import racers, swear by both their stock and performance series crankshaft rod and main bearings. ACL premium bearings will not only hold up better and longer than OEM, but the special coating process will also help prevent premature engine bearing failures and expensive engine damage.
ACL Race series performance bearings are for extreme endurance under harsh conditions. Plan on running high RPMs and big boost? Fatigue, stress wear, and failure are factors you won't have to worry about when you are running ACL's top of the line metallurgy.
When doing rods and pistons, it's a good idea to replace the rod bearings as well. Proper support via main bearings is crucial to prevent oscillations and wear that can damage the crankshaft and other components if the motor should move out of balance. ACL's high quality rod bearings will prevent fatigue, failure, and reduce drivetrain stress through their durable and strong design.
Bearings with extra oil clearance will absorb the stress of higher horsepower motors greater, but will see increased wear during start up. We recommend these be purchased by experienced professionals only.
**Subaru main bearings are specific to either a #5 or #3 journal bearing position. Journal bearing position is not VIN or year specific, it must be known prior to purchase. Please be sure which bearings you need as engine internals components are not eligible for exchange or return.
