- -16 AN Male Thread Design – High-flow capacity for performance and race applications
- CNC-Machined Billet Aluminum – Durable, lightweight, and built for extreme engine conditions
- Improves Crankcase Ventilation – Reduces pressure buildup and supports ring seal
- Perfect for Boosted Engines – Ideal for turbo, supercharged, and nitrous setups
- Professional Engine Bay Appearance – Clean billet finish for custom builds
- Supports Catch Can & Custom PCV Systems – Compatible with AN hose plumbing
p>The
Granatelli Motor Sports Billet Valve Cover Breather 280114 is a high-flow crankcase ventilation upgrade featuring a
-16 AN male thread for maximum airflow capacity. Designed for high-horsepower, boosted, and race engines, it helps control crankcase pressure under extreme conditions.
Key Features
- -16 AN male thread for large-diameter AN hose connection
- High-flow design for boosted and high-compression engines
- CNC-machined billet aluminum construction
- Corrosion-resistant, durable finish
- Ideal for turbocharged, supercharged, and nitrous applications
Performance Benefits
- Relieves excessive crankcase pressure
- Improves ring seal under boost
- Reduces oil contamination from blow-by
- Supports consistent performance in high-load conditions
Installation & Fitment
- Direct connection to -16 AN hoses, catch cans, or custom PCV systems
- Perfect for custom AN plumbing setups
- Built for street/strip and dedicated race applications
For high-boost and competition builds requiring maximum ventilation capacity, the 280114 billet valve cover breather delivers race-ready airflow and durability.