4P PRO TSX CNC Head

Includes

• CNC Ported intake and exhaust ports
• OEM Guides left in for porting 
• Precision CNC valve job using the latest NEWEN Fixed Turning technology
• Resurface

Recommended Use

• All Motor Street and Race Engines
• Perfect for stock to basic 2.0L engines
• Perfect for 2.0L Road Race where midrange punch must be retained
• Turbo and Supercharged
• Suitable for all out 2.0-2.4L Road Race engines with high hp in mind and low end, off corner acceleration
• This is our preferred cylinder head for SFWD and AWD Turbo cars exceeding 1000whp

Features & Benefits

• The RBB TSX heads have the smallest port and least material available for machining when compared to the other K-Series castings. This port was designed to fit in this casting, and takes a mediocre 275cfm cylinder head and transforms it into a 340+cfm race winner!
• Slow-cut precision 5-axis cnc porting, second to none on machining quality.
• 45 degree valve job designed for long life and durability.
• Unique power producing exhaust port design.
• Smaller intake port volume, high air speed port design.
• Optional full length bronze manganese valve guide for valve stability.
• Port walls are left extra thick for high boost applications when used in other castings.
• 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.