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M18 Bore Up Piston Kit for HT81S
Displacement of M16A becomes 1,770cc from 1,490cc, keeping same stroke.
Performance, strength, weight and shape have confirmed by 3D computer simulation.
*This part is need sub-computer re-setting.
*It is necessary cylinder block processing in order to install.
*This item is for Racing.
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Part name |
Part number |
Price |
Model |
Buy Online |
M18 Bore Up Piston Kit |
NA high compression |
139500-4350M |
160,000JPY |
Swift Sport HT81S |
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Turbo/Super charger |
139560-4350M |
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-Specification
| Displacement. |
1,770cc |
| [Standard 1,490cc] |
| Bore × stroke |
85mm×78mm |
| [Standard 78mm×78mm] |
| Compression [With high compression cylinder head.] |
NA high compression |
12.2[Standard 11.1] |
| Turbo・Super charger |
10.5[Standard 11.1] |
| Attachments |
φ85 Forged piston×4 |
| Piston ring set×4 |
| Piston pin×4 |
| Circlip×8 |
| Sleeve×4 |
| Head gasket×1 |
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