
|
Bore size |
99.75mm |
|
Stroke |
79.00mm |
|
|
9.0:1 - 56cc cylinder head 9.7:1 - 50cc cylinder head |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-14.1cm3 |
|
Compression height (CH) |
30.70mm |
|
Pin diameter |
23mm |
|
Fits for |
Subaru WRX STI 2.5 (EJ257) |

|
Bore size |
99.50mm |
|
Stroke |
79.00mm |
|
|
8.5:1 - 56cc cylinder head 9.1:1 - 50cc cylinder head |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-19.25cm3 |
|
Compression height (CH) |
30.70mm |
|
Pin diameter |
23mm |
|
Fits for |
Subaru WRX STI 2.5 (EJ257) |

|
Bore size |
99.75mm |
|
Stroke |
79.00mm |
|
|
8.5:1 - 56cc cylinder head 9.1:1 - 50cc cylinder head |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-19.25cm3 |
|
Compression height (CH) |
30.70mm |
|
Pin diameter |
23mm |
|
Fits for |
Subaru WRX STI 2.5 (EJ257) |

|
Bore size |
100.00mm |
|
Stroke |
79.00mm |
|
|
8.5:1 - 56cc cylinder head 9.1:1 - 50cc cylinder head |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-19.25cm3 |
|
Compression height (CH) |
30.70mm |
|
Pin diameter |
23mm |
|
Fits for |
Subaru WRX STI 2.5 (EJ257) |

|
Product detailed specification |
|
|
Bore size |
99.50mm |
|
Stroke |
79.00mm |
|
Wiseco compression ratio (CR) |
9.0:1 |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-19cm3 |
|
Compression height (CH) |
30.70mm |
|
Pin diameter |
23mm |
|
Fits for |
Subaru WRX STI 2.5 (EJ257) |

|
Product detailed specification |
|
|
Bore size |
99.75mm |
|
Stroke |
79.00mm |
|
Wiseco compression ratio (CR) |
9.0:1 |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-19cm3 |
|
Compression height (CH) |
30.70mm |
|
Pin diameter |
23mm |
|
Fits for |
Subaru WRX STI 2.5 (EJ257) |

|
Product detailed specification |
|
|
Bore size |
100mm |
|
Stroke |
79.00mm |
|
Wiseco compression ratio (CR) |
9.0:1 |
|
OEM compression ratio (CR) |
8.0:1 |
|
Dome volume (CC) |
-19cm3 |
|
Compression height (CH) |
30.70mm |
|
Pin diameter |
23mm |
|
Fits for |
Subaru WRX STI 2.5 (EJ257) |





Kit includes:
1. Custom billet 94.00mm stroke crankshaft
2. Real street performance Billet main cap set
3. FCP Engineering forged H-beam connecting rod kit
4. Je-pistons kit (Bore size 86.50mm CR 9.5:1)
5. ACL main bearing set
6. ACL connecting rod bearing set
7. ACL thrust washers kit
Kit can be sold separately on request (Crankshaft, pistons etc.)