Ferrea Engine Valvetrain Parts

What are the best valves for a serious engine build? For many Honda, Subaru, Nissan, and Mitsubishi builders, the answer starts with Ferrea. Ferrea Racing Components has built its reputation around performance valvetrain hardware — Competition Plus and 6000 Series intake and exhaust valves, valve springs, retainers, locks, and valve guides — engineered for the cylinder pressures and RPM of built and boosted engines.

The valvetrain is the first thing to upgrade when a build outgrows stock components. Exhaust valves in a turbocharged engine see brutal heat, and stock springs can float well before a raised rev limit. Ferrea's catalog covers applications from Honda F20C and L15 engines to Nissan's VR38DETT and more, with S-Flo valve designs and Competition Plus alloys aimed at high-performance street and competition use. Because valve sizing is application-specific — diameter, stem size, length, and keeper groove must all match your head — always verify the part number against your engine; when unsure, check your year and model.

Ferrea sits alongside other proven engine-internal brands — explore Supertech, King Engine Bearings, and Wiseco, plus connecting rods and oil system hardware to complete your rotating assembly.

Standouts include the Ferrea 6000 Series intake valves for 00-03 S2000 (F20C) and the Ferrea VR38DETT valve set for the Nissan GT-R. Planning a WRX build? Read our top 3 aftermarket parts for the Subaru WRX series.

Do Ferrea valves drop into a stock cylinder head?

Many Ferrea valves are stock-replacement sized and install into unmodified heads with matching stock-style seats. Oversize or competition valves need machine work — confirm the application notes before ordering.

Should I replace valve guides and seals with the valves?

Yes — a head rebuild is the right time to refresh guides, seals, and keepers. Worn guides cause oil consumption and uneven valve seating no matter how good the new valves are.

Do I need upgraded valve springs?

If you are installing cams with more lift or raising the rev limit, yes — match spring pressure to your cam specs to avoid valve float. Stock springs are fine for stock-cam rebuilds.

How hard is a valve job to install?

It is professional head-shop work involving valve-seat cutting and precise clearances. Budget for a machine shop rather than treating it as a driveway install.