Wiseco Pistons for Mitsubishi 4g63t engines found most commonly in the Mitsubishi Eclipse GST and GSX, Lancer Evolution 1-9, Galant VR4, Eagle Talon, and several other cars between 1990 and 2007. Wiseco makes several 4g63 Pistons and we try to keep several of the most popular part numbers in stock. Just select which part number best fits your application from the list below, and include that part number in the notes section of your payment.
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.
COMES WITH RINGS, WRIST PINS, AND LOCKS!Wiseco Piston Part Numbers
1st Gen 6 Bolt Eclipse 1988-92| Part # | Application | Bore Size | Compression Ratio |
| K559M85 | 4g63 6bolt | 85.00mm (Standard Bore) | 8.3:1 |
| K559M855 | 4g63 6bolt | 85.50mm (+.020" Overbore) | 8.3:1 |
| K559M86 | 4g63 6bolt | 86.00mm (+.040" Overbore) | 8.3:1 |
| K559M865 | 4g63 6bolt | 86.50mm (+.060" Overbore) | 8.3:1 |
| K560M85 | 4g63 6bolt | 85.00mm (Standard Bore) | 9.0:1 |
| K560M855 | 4g63 6bolt | 85.50mm (+.020" Overbore) | 9.0:1 |
| K560M86 | 4g63 6bolt | 86.00mm (+.040" Overbore) | 9.0:1 |
| K560M865 | 4g63 6bolt | 86.50mm (+.060" Overbore) | 9.0:1 |
1st Gen 6 Bolt Eclipse w/ 2.4L 4g64 Crank (2.3 Stroker)| Part # | Application | Bore Size | Compression Ratio |
| K571M85 | 4g63 6bolt 2.3 Stroker | 85.00mm (Standard Bore) | 8.8:1 |
| K571M855 | 4g63 6bolt 2.3 Stroker | 85.50mm (+.020" Overbore) | 8.8:1 |
| K571M86 | 4g63 6bolt 2.3 Stroker | 86.00mm (+.040" Overbore) | 8.8:1 |
