Description
Engine builders working with Chrysler Hemi 6.4L (1.654) can use this Race Master exhaust valve family to choose the required valve dimensions while staying within the correct Manley application group. The parent listing is distinguished by Set of 8, which should be cross-checked against the rest of the engine combination.
If the Chrysler Hemi 6.4L (1.654) cylinder head has been ported, fitted with oversized seats, or changed from its original valvetrain layout, confirm the required valve measurements after machining rather than using a stock-size assumption.
Key Product Details
- Application: Chrysler Hemi 6.4L (1.654)
- Manley Series: Race Master
- Valve Position: Exhaust
- Title Specification: Set of 8
- Product Family Detail: Race Series application focus
- Manufacturer Part Number: 12331B-8
Package Quantity
Set of 8 valves. The selected configuration is supplied as a 8-piece valve package. This quantity applies to the selected Manley SKU family shown on this product page.
Selection & Fitment Notes
Use the finished cylinder-head setup as the authority for selection. Oversize valves or alternate lengths may require machining and can affect installed height and valvetrain geometry.
Professional engine assembly and measurement are recommended. Product specifications should be confirmed against the selected Manley part number and the requirements of the exact engine build.