Brian Crower Mitsubishi 4G63/Evo 6.5mm Stem Keepers/Locks (fits BC2100 Retainers)

If you're rebuilding the top end of your 1990-1999 Mitsubishi Eclipse, Lancer, or other compatible DSM platform, ensuring your valve train components are secure is critical. These 6.5mm stem keepers, also known as valve locks, from Brian Crower are designed to hold your valves securely in place within the valve spring and retainer assembly. They are specifically made to work with Brian Crower's BC2100 retainers, ensuring a precise fit and reliable function for your 4G63 or Evo engine.

Brian Crower is known for making well-built engine components, and these keepers are no exception. They are manufactured to exact specifications to mate properly with the BC2100 retainers, which is essential for maintaining proper valve spring pressure and preventing valve float at higher RPMs. Getting these installed correctly is key to a healthy engine rebuild, so make sure you're using the right parts for the job.