Ferrea Exhaust Valve 1.6in 11/32 4.96in 6000 Series ChevySB

Exhaust valve engineered for durable, repeatable operation — the Ferrea Chevy SB 6000 Series exhaust valve provides reliable high-temperature performance for serious engine builds.

This Ferrea valve set is built to deliver measured flow and consistent sealing under demanding conditions. Each specification below represents a controlled design decision to balance longevity, sealing, and exhaust gas evacuation in small-block Chevy applications.

• 1.60 in head diameter — larger head area supports improved exhaust-gas evacuation and stable flow characteristics at higher rpm compared with smaller heads.
• 11/32 in stem diameter — precision stem size improves stability in the guide, reducing valve wobble and promoting consistent seat engagement.
• 4.96 in overall length — controlled length ensures proper valve-to-spring geometry and correct fitment in small-block Chevy cylinder heads.
• 0.25 in margin — defined margin adds material where it matters for resistance to margin wear and long-term durability.
• 12° face angle — optimized face angle promotes a reliable seat interface and predictable sealing behavior over repeated cycles.
• Flo +0.050 — flow-matched cut with +0.050 allowance to enhance high-flow exhaust characteristics without compromising sealing integrity.
• 6000 Series construction — Ferrea’s 6000 Series metallurgy and heat treatment provide a balance of strength and high-temperature resistance for exhaust duty.
• Set of 8 — complete valve set for a V8 small-block Chevy, enabling consistent component matching across all cylinders.

Ferrea brand quality: Ferrea valves are produced to tight tolerances to minimize variation between parts, supporting predictable valve train behavior and simplifying assembly and calibration.

Technical notes: these valves are intended for small-block Chevy (SB) applications and are supplied as a matched set of eight valves to ensure uniform performance across the engine.