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CP Pistons Individual CP Piston; For Turbo / Supercharger & N2O Applications; No Locks Supplied, use Factory Locks; For Stroker Motor SUBARU IMPREZA


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Part #: SC7444
Notes: Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
For Stroker Motor
Please contact us for pricing & more information.

Specs

Bore 3.957 (100.50mm)
Comp Height 1.123
Comp Ratio 10.0:1
Size +1.0mm
Stroke 83mm

This Item Also Available In

Part Number Price Notes & Specs
SC7421 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
Bore 3.937(100.0mm)
Comp Height 1.208
Comp Ratio 8.2:1
Size +0.5mm
SC7420 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
Bore 3.9175(99.5mm)
Comp Height 1.208
Comp Ratio 8.2:1
Size STD
SC7422 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
Bore 3.927(99.75mm)
Comp Height 1.208
Comp Ratio 8.2:1
Size +0.25mm
SC7425 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
Bore 3.9175 (99.5mm)
Comp Height 1.208
Comp Ratio 9.0:1
Size STD
SC7426 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
Bore 3.927 (99.75mm)
Comp Height 1.208
Comp Ratio 9.0:1
Size +0.25mm
SC7423 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
Bore 3.957(100.50mm)
Comp Height 1.208
Comp Ratio 8.2:1
Size +1.0mm
SC7427 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
Bore 3.937 (100.00mm)
Comp Height 1.208
Comp Ratio 9.0:1
Size +0.5mm
SC7428 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
Bore 3.957 (100.50mm)
Comp Height 1.208
Comp Ratio 9.0:1
Size +1.0mm
SC7415 $485.51 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
Bore 3.9175 (99.50mm)
Comp Height 1.208
Comp Ratio 10.0:1
Size STD
SC7416 $485.51 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
Bore 3.927 (99.75mm)
Comp Height 1.208
Comp Ratio 10.0:1
Size +0.25mm
SC7417 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
Bore 3.937 (100.00mm)
Comp Height 1.208
Comp Ratio 10.0:1
Size +0.5mm
SC7418 $0.00 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
Bore 3.957 (100.50mm)
Comp Height 1.208
Comp Ratio 10.0:1
Size +1.0mm
SC7433 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
For Stroker Motor
Bore 3.9175 (99.50mm)
Comp Height 1.123
Comp Ratio 8.5:1
Size STD
Stroke 83mm
SC7434 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
For Stroker Motor
Bore 3.927 (99.75mm)
Comp Height 1.123
Comp Ratio 8.5:1
Size +0.25mm
Stroke 83mm
SC7435 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
For Stroker Motor
Bore 3.937 (100.00mm)
Comp Height 1.123
Comp Ratio 8.5:1
Size +0.5mm
Stroke 83mm
SC7436 $539.80 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
For Stroker Motor
Bore 3.957 (100.50mm)
Comp Height 1.123
Comp Ratio 8.5:1
Size +1.0mm
Stroke 83mm
SC7437 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
For Stroker Motor
Bore 3.9175 (99.50mm)
Comp Height 1.123
Comp Ratio 9.0:1
Size STD
Stroke 83mm
SC7438 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
For Stroker Motor
Bore 3.927 (99.75mm)
Comp Height 1.123
Comp Ratio 9.0:1
Size +0.25mm
Stroke 83mm
SC7439 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
For Stroker Motor
Bore 3.937 (100.00mm)
Comp Height 1.123
Comp Ratio 9.0:1
Size +0.5mm
Stroke 83mm
SC7440 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
For Stroker Motor
Bore 3.957 (100.50mm)
Comp Height 1.123
Comp Ratio 9.0:1
Size +1.0mm
Stroke 83mm
SC7441 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
For Stroker Motor
Bore 3.9175 (99.50mm)
Comp Height 1.123
Comp Ratio 10.0:1
Size STD
Stroke 83mm
SC7442 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
For Stroker Motor
Bore 3.927 (99.75mm)
Comp Height 1.123
Comp Ratio 10.0:1
Size +0.25mm
Stroke 83mm
SC7443 $535.56 Notes Individual CP Piston
For Turbo / Supercharger & N2O Applications
No Locks Supplied, use Factory Locks
For Stroker Motor
Bore 3.937 (100.00mm)
Comp Height 1.123
Comp Ratio 10.0:1
Size +0.5mm
Stroke 83mm

All Fitments

SUBARU
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2004 - 2012 IMPREZA WRX STI
WRX STI LIMITED
WRX STI SPECIAL EDITION
H4 2.5 T EJ257 GAS

Product Description

Whether you’re racing a Honda, Acura, Mitsubishi, Toyota, Nissan, or Subaru, CP Pistons has specially designed high-performance pistons off-the-shelf. In most cases, these will directly replace the stock pistons.

CP pistons are compatible with oversized valves and high lift camshafts. Part numbers ending in a “X” are on a X-style forging for additional strength, durability and weight reduction. The X-style has a full radius dome design, high-performance rings and lightweight wrist pins. CP Pistons represent the highest quality and is engineered for maximum power. Pistons can be ordered with gas ports, skirt coating, ceramic top coating, and stronger wrist pins if desired.

Features

  • High strength aluminum forgings
  • Super lightweight designs
  • Deep valve reliefs accommodate high lift camshafts
  • Larger valve reliefs for +1mm valve sizes
  • Fully CNC machined and balanced to +/- 1 gram
  • Wrist pins included at no extra cost
  • Accumulator groove included
  • Double pin oilers, force fed from oil ring
  • Pick lock grooves for easy lock removal
  • Pin fitting included

CP Pistons are priced and sold per piston. 4 Cylinder engines will require ‘Quantity 4’ of each part #.

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