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4 Piston Racing K Series PRO 156 CNC Cylinder Head
4 Piston Racing K Series PRO 156 CNC Cylinder Head
4 Piston Racing K Series PRO 156 CNC Cylinder Head
4 Piston Racing K Series PRO 156 CNC Cylinder Head
4 Piston Racing K Series PRO 156 CNC Cylinder Head
4 Piston Racing K Series PRO 156 CNC Cylinder Head
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4 Piston Racing K Series PRO 156 CNC Cylinder Head

4 Piston
4P-PRO156-K-01
Available
$1,500.00

$1,500.00

4 Piston Racing K Series PRO 156 CNC Cylinder Head
Ferrea Valve Guides with Install / No Springs and Retainers - $1,500.00

Honda K20/K24 (CRV K24A1, Type S K20A2, Type R K20A, RBC, RSP)

What if you could make significantly more power, AND have a cylinder head that lasted up to 3 times longer than the competition? That is what our cylinder head program is all about... Pumping out the biggest horsepower, keeping it responsive, and doing so with increased longevity. With a high power turbo car, your biggest battle is dealing with extreme exhaust temperatures. Our heads have design features that pull heat away from the valve!

Note: will not work with RBB TSX casting!

Includes

  • CNC Ported intake and exhaust ports
  • OEM Guides left in for porting
  • Racing Valve Job
  • Resurface
  • NO VALVES

Recommended Use

  • All Motor Street/Race
  • Outlaw Turbo
  • Turbo Street
  • Road Race
  • USAC Midget
  • Suitable for 2.0-2.4L Road Race engines with a broad powerband in mind
  • Suitable for 2.4-2.7L Drag Race engines as an alternative to our large valve 163 heads

Features & Benefits

  • 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.
  • Intake port features a laid out short turn for superior air speed around the valve when compared to conventional tall short turn port designs.
  • Full length bronze manganese valve guide for valve stability.
  • Port walls are left extra thick for high boost applications.
  • 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.

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