Profiler 1743203 - Cylinder Head Cast Aluminum Chevy Big Block 320cc 119cc 24 Degree 2.300" x 1.880", Bare CastingProfiler 1743203 Cylinder Head Cast Aluminum Chevy Big Block 320cc 119cc 24 Degree 2. 300" x 1. 880", Bare Casting The Profiler Sniper cylinder head is designed with the most up to date technology available, this Sniper head flows 380cfm @ . 750". We started with the most sound casting available and then spent months developing the best port and chamber for a 24 head. All heads are "As Cast" and feature a 5 angle valve job. The Sniper uses standard