Includes CNC Ported intake and exhaust ports Manganese Bronze Valve Guides (16) Oversized Intake Seats (8) Precision CNC valve job using the latest NEWEN Fixed Turning technology Resurface 4P 38.3mm Intake Valves (8) 4P Custom Exhaust Valves (8)World Record NITRO All Motor....yep Recommended Use 2.7L and larger serious DRAG RACE ONLY If you have smaller than a 2.7L engine, go see the Super 99 Features & Benefits OVER 425 CFM! 15-25 hp over the competition's best Exclusive 4P custom 38.3mm Intake Valve that is lighter than the competition's smaller valves Unique power producing exhaust port design and 4P proprietary valve produces 7-9hp over the competition Slow-cut precision 5-axis cnc porting, second to none on machining quality. Precision CNC valve job using the latest NEWEN Fixed Turning technology Full length bronze manganese guide for valve stability. Our intake port has very little turbulence and great velocity when compared to our competitors. You can hear the difference on the bench! 5 years in testing and development with PROVEN back to back results. Our heads are all shipped with installation tips, a sheet of desired clearances for setting up your engine, and a flow chart from your head. All heads require a core! You can send us your head, or purchase one from us at the current market price.
