This is a set of Wiseco Pistons and K1 H Beam Rods for the Honda B18A/B and B20B 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.
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. Wiseco is one of the most trusted and affordable options on the market period.
PISTONS COME WITH RINGS, WRIST PINS, AND LOCKS!
K1 RODS COME WITH ARP ROD BOLTSWiseco Piston Part Numbers Integra 1990-00 B18A1/B1| Part # | Application | Bore Size | Compression Ratio |
| K541M81 | B18A1/B1 | 81.00mm (Standard Bore) | 8.3:1 - 8.6:1 |
| K541M815 | B18A1/B1 | 81.50mm (+.020" Overbore) | 8.3:1 - 8.6:1 |
| K541M82 | B18A1/B1 | 82.00mm (+.040" Overbore) | 8.3:1 - 8.6:1 |
| K542M81 | B18A1/B1 | 81.00mm (Standard Bore) | 9.3:1 - 9.8:1 |
| K542M815 | B18A1/B1 | 81.50mm (+.020" Overbore) | 9.3:1 - 9.8:1 |
| K542M82 | B18A1/B1 | 82.00mm (+.040" Overbore) | 9.3:1 - 9.8:1 |
| K566M81 | B18A1/B1 | 81.00mm (Standard Bore) | 11.1:1 - 11.6:1 |
| K566M815 | B18A1/B1 | 81.50mm (+.020" Overbore) | 11.1:1 - 11.6:1 |
| K566M82 | B18A1/B1 | 82.00mm (+.040" Overbore) | 11.1:1 - 11.6:1 |
| K593M81 | B18A1/B1 | 81.00mm (Standard Bore) | 11.8:1 - 12.4:1 |
| K593M815 | B18A1/B1 | 81.50mm (+.020" Overbore) | 11.8:1 - 12.4:1 |
| K593M82 | B18A1/B1 | 82.00mm (+.040" Overbore) | 11.8:1 - 12.4:1
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1997-02 B20B with VTEC Head| Part # | Application | Bore Size | Compression Ratio |
| K545M84 | B20B w/ VTEC Head | 84.00mm (Standard Bore) | 8.4:1 - 8.8:1 |
| K545M845 | B20B w/ VTEC Head | 84.50mm (+.020" Overbore) | 8.4:1 - 8.8:1 |
| K545M85 | B20B w/ VTEC Head | 85.00mm (+.040" Overbore) | 8.4:1 - 8.8:1 |
| K623M84 | B20B w/ VTEC Head | 84.00mm (Standard Bore) | 10.4:1 - 10.9:1 |
| K623M845 | B20B w/ VTEC Head | 84.50mm (+.020" Overbore) | 10.4:1 - 10.9:1 |
| K567M84 | B20B w/ VTEC Head | 84.00mm (Standard Bore) | 11.3:1 - 12.0:1 |
| K567M845 | B20B w/ VTEC Head | 84.50mm (+.020" Overbore) | 11.3:1 - 12.0:1 |
| K567M85 | B20B w/ VTEC Head | 85.00mm (+.040" Overbore) | 11.3:1 - 12.0:1 |
| K594M84 | B20B w/ VTEC Head | 84.00mm (Standard Bore) | 13.2:1 - 14.2:1 |
| K594M845 | B20B w/ VTEC Head | 84.50mm (+.020" Overbore) | 13.2:1 - 14.2:1 |
| K594M85 | B20B w/ VTEC Head | 85.00mm (+.040" Overbore) | 13.2:1 - 14.2:1 |
| K594M855 | B20B w/ VTEC Head | 85.50mm (+.060" Overbore) | 13.2:1 - 14.2:1 |
| K594M86 | B20B w/ VTEC Head | 86.00mm (+.080" Overbore) | 13.2:1 - 14.2:1
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K1 H Beam Rod Part Numbers| Part # | Application |
| HH5394ACFB4 | B18A/B B20
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