18 Degrees of HP - Cylinder Head Features

Trick Flow 18 Degree Cylinder Head Features

1.55 in. dual valve springs

250cc intake runners with floor raised 1.15 in. from deck

Heat treated T-6 aluminum is stronger than other alloys

Shallow 18 degree valve angle allows use of larger, on-center valves for improved airflow at max valve lift

Machined for 2.155 in./1.625 in. valves--can be machined for intake valves up to 2.180 in.

56cc combustion chambers help boost compression without using large-dome pistons

Uses standard 18 degree intake manifolds, headers, valve covers, and valvetrain components