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CP Acura Honda K20a K20a2 High Compression Pistons

CP High Compression Honda K20 Pistons

Forged CP Honda K20a and K20a2 high compression pistons are compatible with stock and oversized valves and stock or 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 light weight wrist pins.

CP Carrillo products represent the highest quality and are engineered for maximum power. Pistons can be ordered with gas ports, skirt coating, ceramic top coating, and stronger wrist pins if desired. To order a set with any of these options, please include a message in the note section of the order form during our check out process, or you may contact us in advance for more info on these options.

CP Standard features include:

  • Deep valve reliefs accommodate high lift camshafts
  • Larger valve reliefs for +1mm valve sizes
  • Custom skirt cam and barrel design
  • Accumulator grooves
  • High strength aluminum forgings
  • High performance rings included
  • Fully CNC machined and balanced to +/- 1 gram
  • Wrist pins included at no additional cost
  • Double pin oilers force fed from oil ring groove
  • Pick lock grooves for easy lock removal
  • Pin fitting included

CP Pistons High Compression Honda Acura K20 Pistons

For K20a and K20a2 Engines

Honda K20 High Compression Pistons

  • Bore Size Cylinder bore size piston is designed to work in, listed in inches and millimeters
  • Relative Size Denotes whether this bore size is stock standard size, or an oversize listed in millimeters
  • CR Compression Ratio
  • Crankshaft Stroke Designed to work with stock crank stroke of 86 mm
  • Connecting Rod Length Designed to work with stock rod length of 139 mm
  • Wrist Pin Diameter 22mm
  • Compression Height 1.181 inches This is the distance from the centerline of the wrist pin bore to the top flat surface of the piston.
  • Ring Widths Ring grooves are machined to work with 1.0mm, 1.2mm, 2.8mm rings
  • WHAT’S INCLUDED 4 forged pistons, 4 Wrist Pins, pin retention locks and premium piston ring set

 

Bore
Inches
Bore
MM
Size
MM
Stroke
MM
Rod
Length
MM
Compression Piston Set
3.386 86 STD 86 139 11.5 SC7140

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3.406 86.5 +0.5mm 86 139 11.5 SC71401

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3.425 87 +1.0mm 86 139 11.5 SC71402

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3.465 88 +2.0mm 86 139 11.5 SC71403

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3.504 89 +3.0mm 86 139 11.5 SC71404

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3.543 90 +4.0mm 86 139 11.5 SC71405

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3.386 86 STD 86 139 12.5 SC7142X

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3.406 86.5 +0.5mm 86 139 12.5 SC71421X

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3.425 87 +1.0mm 86 139 12.5 SC71422X

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3.465 88 +2.0mm 86 139 12.5 SC71423X

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3.504 89 +3.0mm 86 139 12.5 SC71424X

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3.543 90 +4.0mm 86 139 12.5 SC71425X

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More general and technical information about CP Carrillo and our complete listing of all available CP products is here > CP Carrillo Forged Pistons

 

Custom K20 High Compression Pistons

If you do not see a shelf stocking part number set here with the specifications that you need, we can provide you with a set of custom pistons built to your exact requirements. Please contact us if you would like to discuss a set of CP customs and we will be happy to work with you to insure you get exactly the Acura Honda K20 series engine pistons you need.

 

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