Mopar S/D 2.250 Intake Valves

The Manley Mopar S/D 2.250 Intake Valves (MPN 11904-8) are high-performance stainless steel intake valves specifically designed for Mopar 426 Hemi engines. This set of eight valves features a 2.250-inch head diameter and 0.309-inch valve stem, making them ideal for severe-duty applications where standard components may not suffice.

Constructed from stainless steel, these valves are engineered to resist thermal stress and corrosion, ensuring reliability under high-load conditions. The design optimizes air charge for combustion efficiency, while the stem diameter aligns with OEM specifications for accurate valve guide fitment.

Engine builders and performance shops will find these valves essential for restoring or upgrading 426 Hemi powerplants, particularly in applications demanding high performance and durability. They are particularly suited for drag racing environments where sustained RPM and high boost pressure are common.