This is a brand new set of CP Pistons and K1 H Beam Rods for Honda Acura K20A2 / K20Z1 Engines. Just select which part number best fits your application from the list below, and include that part number in the paypal notes section of your payment.
CP Pistons is one of the most trusted names in the industry, and for good reason. Their extensive shelf catalog provides the user with many of the options that you'd normally be resigned to going to a custom piston for. Their standard offering already includes Dual Pin Oilers - providing double the amount of oil to the wrist pin, radiused valve relifs, and the pin fitting final hone on the wrist pin bore. They even include an Accumulator Groove as a standard option. This provides a small pocket for the combustion gasses to collect after the first ring, reducing ring flutter and providing a better seal allowing more downward force on the piston A.K.A. - make more power. All pistons come balanced within one gram, include pin lock grooves and wrist pins at no additional charge.
The K1 Rod is an excellent H Beam rod that comes with ARP2000 Rod Bolts. We prefer to use K1 Rods for applications in the 175hp per cylinder range.
Have a question about bore size or compression ratio?
Want an expected ship date on a specific part number?
Email us now at Sales@RealStreetPerformance.comWhether you damaged your stock internals, you are building an all out race engine, or you are just looking to upgrade your stock bottom end. CP is one of the most durable and reliable options on the market period.
COMES WITH RINGS, WRIST PINS, AND LOCKS!CP Piston Part Numbers K-Series Pistons| Part # | Application | Bore Size | Compression Ratio |
| SC7040 | K20A/A2/A3 | 86.00mm (Standard Bore) | 9.0:1 |
| SC70401 | K20A/A2/A3 | 86.50mm (+.020" Overbore) | 9.0:1 |
| SC70402 | K20A/A2/A3 | 87.00mm (+.040" Overbore) | 9.0:1 |
| SC70403 | K20A/A2/A3 | 88.00mm (+.080" Overbore) | 9.0:1 |
| SC70404 | K20A/A2/A3 | 89.00mm (+.120" Overbore) | 9.0:1 |
| SC70455 | K20A/A2/A3 | 86.00mm (Standard Bore) | Flat Top |
| SC70456 | K20A/A2/A3 | 86.50mm (+.020" Overbore) | Flat Top |
| SC70457 | K20A/A2/A3 | 87.00mm (+.040" Overbore) | Flat Top |
| SC70458 | K20A/A2/A3 | 87.50mm (+.060" Overbore) | Flat Top |
| SC70459 | K20A/A2/A3 | 88.00mm (+.080" Overbore) | Flat Top |
| SC70460 | K20A/A2/A3 | 89.00mm (+.120" Overbore) | Flat Top |
| SC7140 | K20A/A2 | 86.00mm (Standard Bore) | 11.5:1 |
| SC71401 | K20A/A2 | 86.50mm (+.020" Overbore) | 11.5:1 |
| SC71402 | K20A/A2 | 87.00mm (+.040" Overbore) | 11.5:1 |
| SC71403 | K20A/A2 | 88.00mm (+.080" Overbore) | 11.5:1 |
| SC71404 | K20A/A2 | 89.00mm (+.120" Overbore) | 11.5:1 |
| SC71405 | K20A/A2 | 90.00mm (+.160" Overbore) | 11.5:1
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K1 H Beam Rod Part Numbers| Part # | Application |
| HH5472AEGB4 | K20A2 / K20Z1
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