These are Supertech shim-under cam followers (buckets) for RZ engines. You use them in conjunction with their solid shim to adjust the valve clearances, the shims are sold separately. This setup is lighter weight and allows much higher RPM with big cams. These are easier to set up than shimless buckets, and you can go thicker and thinner than the shimless buckets would allow. We recommend using these when using high performance cams, as the factory bucket will allow the top shim to come loose under high rpm.
- Diameter: 31mm
- Length: 25.5mm
- Post: 3.28mm + Shim 1.45-3.50mm
- Toyota – 2RZ-FE
- Toyota – 3RZ-FE