SBC CNC 18-Degr Cyl Head 250cc Assembled

The SBC CNC 18-Degree Cylinder Head 250cc Assembled from Trick Flow is a precision-engineered solution designed for small-block Chevrolet builders aiming for significant horsepower and torque enhancements. This fully assembled head is ideal for both enthusiasts and professional engine builders who require maximum breathing efficiency without the complexities of port matching or valve train assembly.

Engineered with an 18-degree architecture, this cylinder head optimizes combustion chamber geometry and intake valve angle, improving airflow dynamics across a broad RPM range. With a 250cc intake runner volume, it strikes the perfect balance between velocity and flow, enhancing mid-range torque and peak horsepower compared to stock cast iron alternatives. Each head is CNC-ported and machined to precise tolerances, arriving fully assembled with high-quality components to eliminate assembly errors that could affect performance.

This cylinder head is compatible with all small-block Chevrolet engines (262–400 cubic inches) featuring standard Chevy mounting patterns, making it an excellent choice for drop-in upgrades on existing builds. Its engineering-first approach ensures consistent valve timing, sealing integrity, and durability, providing a reliable performance boost for street engines, strip racers, or high-performance truck platforms.