Description
This Manley Severe Duty intake valve family is intended for Chevrolet Big Block builds where valve dimensions need to be matched deliberately to the cylinder head, seat work, and valvetrain geometry. The parent listing is distinguished by 1.900–2.400"; Head / 5.218–6.600"; OAL, which should be cross-checked against the rest of the engine combination.
For Chevrolet Big Block, valve diameter changes can alter seat work and chamber/shrouding relationships, while alternate overall lengths can change installed height and rocker geometry.
Key Product Details
- Application: Chevrolet Big Block
- Manley Series: Severe Duty
- Valve Position: Intake
- Title Specification: 1.900–2.400"; Head / 5.218–6.600"; OAL
- Product Family Detail: Severe Duty application focus
- Manufacturer Part Numbers: Vary by selected configuration (32 SKUs in this parent family)
Available Configurations
This parent listing contains multiple selectable Manley SKUs. Choose the configuration that matches the measured engine or cylinder-head specification.
- Head Diameter: 2.250in, 2.350in, 2.300in, 2.325in, 2.190in, 2.065in, 1.900in, 2.400in
- Overall Length: 14 selectable values (including 5.594in, 5.344in, 5.494in, 5.244in, 5.444in, 5.610in)
- Stem Diameter: 0.3110in, 0.3415in, 0.3720in, 0.3715in
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
Before purchase, compare the selected valve dimensions with your head manufacturer or engine builder’s specification, including stem diameter, valve length, seat diameter, and keeper arrangement.
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.