Trick Flow® Ultra 18® 250 Cylinder Heads for Small Block Chevrolet

Trick Flow Ultra 18® 250 cylinder heads with 18 degree runners make serious horsepower—power ideal for drag and high-rpm circle track racing. Right out of the box, these heads deliver higher airflow numbers than fully prepped 23 degree heads.
Features include Trick Flow’s CNC-profiled combustion chambers and CNC Competition Ported runners with a premium high resolution surface finish for maximum flow and performance.

Ultra 18 250 heads accept most current 18 degree intake manifolds, headers, and other components. They require the use of offset shaft-mounted rocker arms and a mechanical roller camshaft with offset intake lifters. The heads are available fully assembled or as bare castings. Sold individually.