💥 Engineered for BIG BOOST. Proven for RELIABILITY. 💥
If you're serious about power and pushing your N54 or N55 engine to its limits, a stock open-deck block just won't cut it. That's where VAC's Closed Deck Conversion comes in.
✅ Distortion-Free Deck Surface
Our proprietary CNC-machined inserts ensure a rigid, pressure-tight seal that can handle extreme cylinder pressures without head gasket failures.
✅ High-Boost Ready Inserts
Uniquely engineered inserts fill the entire deck void around the cylinders, preventing cylinder wall flex under big boost and high RPM conditions.
✅ Coolant Flow Optimized
Designed with precision coolant passages to maintain cooling efficiency while reinforcing the entire deck structure.
✅ CNC Deck Plate Bored & Honed
Every block is CNC Deck Plate Honed on our state-of-the-art Centroid machining center--ensuring round, true cylinders under simulated operating conditions.
🧠 Built for racers. Trusted by tuners. Proven by horsepower junkies.
💰 $1,999.95
Price includes Closed Deck conversion service only.
Core engine block & short block assembly not included.
📦 Ready to build your next monster motor?