Ferrea precision-machined valve locks (keepers) for the Mitsubishi EVO X 2.0L (4B11T) engine, sized for a 5.5mm valve stem. Built for the higher spring loads and rpm of a performance or race valvetrain, they provide a secure, repeatable grip between the retainer and valve. Sold as a set of 16.
Specifications
| Type | Valve locks (keepers) |
| Engine | Mitsubishi EVO X 2.0L (4B11T) |
| Stem size | 5.5mm |
| Sold as | Set of 16 |
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