Ferrea Exhaust Valves 1.615in Head 0.31in Stem 84-04 Harley

Exhaust valve for the 1984–2004 Harley‑Davidson Evolution engines: the Ferrea 1.615in head, 0.31in stem diameter Comp exhaust valve provides correct dimensional match and consistent valve seating for reliable valvetrain operation.

This Ferrea valve is specified in the product title and built to the dimensional details listed below. Use of the Ferrea brand signals OEM‑grade manufacturing focus for valvetrain components on Evolution engines.

• Application: 1984–2004 Harley‑Davidson Evolution
• Valve type: Comp exhaust valve
• Head diameter: 1.615 in
• Stem diameter: 0.31 in
• Quantity: Set of 2
• Brand: Ferrea

Why these technical details matter:

• Correct head diameter (1.615 in): Ensures the valve seats and combustion chamber geometry remain as intended for the specified Evolution engines.
• Accurate stem diameter (0.31 in): Matches valve guide fit to maintain proper oil control and lateral stability of the valve during high‑RPM operation.
• Comp exhaust valve designation: Indicates the component is intended for exhaust service within the valvetrain assembly and is supplied as a matched part for replacement or refresh.
• Set of 2: Supplied quantity supports paired cylinder exhaust valve replacement or staged maintenance.
• Ferrea brand: Identifies the component source; Ferrea is noted here as the vendor specified for this part.

Compatibility note: This product title and specifications explicitly reference 1984–2004 Harley‑Davidson Evolution engines. Verify these dimensional values against your engine's service documentation before ordering to confirm fitment and intended use.