Engines and Components Camshafts and Valvetrain

Ferrea Racing

Ferrea Pontiac 400/428/455 1.66in 11/32in 5.11in 12 Deg S-Flo 6000 Series Exhaust Valve - Single

$42.67

SKU: F00K F6259-1

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The Ferrea F6259-1 is an exhaust valve from the 6000 Series Competition Plus line. It features a 1.6006-inch head diameter, an 11/32-inch stem diameter, and an overall length of 5.11 inches. Constructed from EV8 stainless steel, this valve is designed for high spring pressures and roller cams.

This valve is specifically designed for Pontiac 400, 428, and 455 cubic inch engines. It undergoes a special heat-treatment and stress-relieving process, with hard chrome stems and friction-welded hard tips for enhanced durability. The head is swirl-polished for improved flow.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandFerrea Racing
Part NumberF00K F6259-1

Videos

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy