USRA SPEC HEAD
Stock replacement, street and strip performance, or towing upgrade with mildly modified engines from idle to 5,500 RPM. Best for 305-383 cubic inch engines. Works with most standard components.
Dart Iron Eagle S/S 23° 165cc heads produce great throttle response and low to mid-range torque for street performance engines. Our precision cast ports and chambers produce outstanding air flow without time consuming porting. Dart S/S heads are legal in many racing sanctions with Iron head rules. Assemblies include Stainless Steel valves, premium springs, locks, retainers, and seals. Guide plates not included for self-aligning rocker styles.
Heads are sold individually.
Application -USRA Spec Head. Chamber size - 76cc. Port volume - 165cc intake runner. 1.94. Exhaust valve size - 1.50"