Ductile Iron High-Tech Liners – Alfa Romeo 2000 Twin Spark

Description

Precision-Engineered Ductile Iron Liners – Available in 84 / 85 / 86 mm Bore Sizes

Our VTI High-Performance Liners are manufactured from premium ductile iron, combining exceptional strength with excellent thermal conductivity. Each liner has been developed with engineered throats, a design feature specifically intended to augment heat dissipation, stabilize bore geometry, and maintain structural integrity under extreme compression and high RPM loads.

Key Advantages of Ductile Iron Construction

• Superior Strength & Toughness – Ductile iron resists cracking and distortion far better than conventional gray cast iron, ensuring long service life even in high-compression or forced-induction applications.
• Enhanced Heat Dissipation – Optimized throat geometry promotes efficient transfer of thermal energy away from the combustion chamber, reducing hotspots and detonation risk.
• Dimensional Stability – Maintains roundness and structural integrity under high cylinder pressures, supporting consistent piston-to-wall clearances.
• Wear Resistance – Provides a robust running surface for piston rings, minimizing frictional losses while extending component lifespan.

Available Sizes

• 84.0 mm bore – Stock replacement with performance benefits.
• 85.0 mm bore – +2.4% displacement increase (with stock stroke).
• 86.0 mm bore – +4.9% displacement increase (with stock stroke).

Applications

These liners are engineered to match our VTI High-Performance Pistons, making them the perfect foundation for bottom-end upgrades. They are compatible with multiple compression ratio options and are specifically designed to withstand the increased stresses of high-output naturally aspirated builds, turbocharging, or endurance racing conditions.

Recommendation: For maximum performance, pair the liners with the VTI High-Performance Pistons and VTI Camshaft, ensuring optimal displacement, compression, and airflow for up to 150+ HP potential.