Address
304 North Cardinal St.
Dorchester Center, MA 02124
Work Hours
Monday to Friday: 7AM - 7PM
Weekend: 10AM - 5PM
Automotive Forged Piston Kits For Subaru-EJ25
Highperformance Forged piston for Subaru-EJ25
4032 Alloy: Will not shatter like hypereutectic or cast pistons
Expansion controlled designs for small fitting clearances. With the tighter fitting clearances comes reduced engine noise, reduced wear, reduced emissions and improved oil control in the long term.
Honed & reamed pin bores and precise fit
- Racing Pistons Automotive Engine Pistons for Subaru-EJ25,custom-made pistons for Subaru-EJ25,factory direct for forged piston for Subaru-EJ25
Notice: Product Images may differ from the actual product. Image may be a representation of this item.
Specifications
Details
Specifications
| Cylinder | 4 |
| Bore Diameter (mm/in) | 100/3.937 |
| Compression Height (mm/in) | 30.3/1.193 |
| Comression Ratio | 8.5 |
| Pin Bore (mm/in) | 23/0.905 |
| Stroke (mm/in) | 79/3.110 |
Details
JA piston feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance . This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances.
Additional Information：
- Low-friction（The narrow skirt helps minimize piston contact with the cylinder wall that can cause friction and power loss）
- Ultra flat ring grooves for ring seal promotion
- Anti-detonation grooves for long wear life and performance
Custom piston:JAmodifed can produce pistons for almost all engines. If the parts you need are not within our standard, or you need pistons with different configurations, please fill in the CUMSTOM FORM and check PISTON CATALOG, we will have a design engineer to measure for you Customized.
See other pistons:
Toyota—2UZ:Bore 3.700-CH 1.334-Pin Size 0.866-CR 10.0:1
If you are interested in this piston,please contact us online or contact our sales team.
RELATED PRODUCTS
Subaru-FA20/BRZ/4U-GSE/FRS Bore:3.385 CR:10.0 CH:1.293 Pin Size:0.866
Subaru-EJ20 Bore:3.622 CR:8.5 CH:1.283 Pin Size:0.905
Toyota—3UZ Bore 3.622 CH 1.330 Pin Size 0.866 CR9.5
Acura & Honda-GK5(L15B) Bore:2.874 CH:1.031 CR:12.5 Pin Size:0.785