JE Pistons FOCUS ST 2.5 8.5:1 KIT Set of 5 Pistons
JE Pistons FOCUS ST 2.5 8.5:1 KIT Set of 5 Pistons
A$1,983.60
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Description
Sport Compact, Import and European forged pistons from JE Pistons are the result of over 75 years of industry leading experience extended to our range of premium forged pistons for Ford 2.5L ST Duratec Engines JE Pistons are designed for each specific engine and racing application to provide the ultimate combination of durability and performance. From drift track to drag strip, JE Pistons’ performance is proven in victory lane time and time again. Equipped with the following custom level features
Product Overview
Sport Compact, Import and European forged pistons from JE Pistons are the result of over 75 years of industry leading experience extended to our range of premium forged pistons for Ford 2.5L ST Duratec Engines JE Pistons are designed for each specific engine and racing application to provide the ultimate combination of durability and performance. From drift track to drag strip, JE Pistons’ performance is proven in victory lane time and time again. Equipped with the following custom level features
Features and Benefits
- Forged in the USA using 2618 aluminum, yielding tensile strength and minimal thermal expansion
- Designed specifically for Ford 2.5L ST Duratec Engines To provide optimized performance durability
- Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin
- Includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings
- Made 100% in the USA
- Accumulator Groove: A specialty groove between the top and second ring provides added volume for blow-by gases. This helps reduce pressure between the rings, improving top ring seal and minimizing ring flutter at high cylinder pressures.
- Pin Fit: The pin bore is precision honed to attain an exact pin clearance. Clearances typically range from .0003 to .0010 between the wrist pin and pin bore.
- Vertical Gas Ports: Machined gas ports channel combustion pressure behind the top ring for improved cylinder sealing and reduced blow-by under high load. Common in drag racing applications where maximum ring seal is critical.
- Skirt Coat: Skirt Coat reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise
Product Details
| 2nd Groove Width: | 0.048 |
|---|---|
| 3D Undercrown Milling: | No |
| Accumulator Groove: | Yes |
| Add-On: | JG1001-3307 |
| Anodize Top Ring Groove: | No |
| Bore Diameter: | 84.00 |
| Combo 2: | No |
| Compression Height: | 1.118 |
| Compression Ratio: | 0.33680555555556 |
| Connecting Rod Length: | 5.669 IN |
| Contact Reduction: | No |
| Cylinder Head: | FORD ST 2.5 |
| DVGP: | No |
| Description: | JE Pistons FOCUS ST 2.5 8.5:1 KIT Set of 5 Pistons |
| Double Pin Oilers: | No |
| EN Plating: | No |
| Econo Undercrown Milling: | No |
| Engine Stroke: | 3.669 |
| Engine Type: | ICE |
| Engine: | 2.5L ST |
| Exhaust Angle: | 26 |
| Exhaust Depth: | .140 |
| Exhaust Diameter: | 1.300 |
| Forging Type: | FSR |
| Gas Distribution: | No |
| Industry: | Automotive |
| Intake Angle: | 26 |
| Intake Depth: | .230 |
| Intake Diameter: | 1.550 |
| Lateral Gas Ports: | No |
| Make: | Ford |
| Mill Undercrown: | No |
| Oil Groove Width: | 0.11100 |
| Oil Ring Thickness: | 0.111 |
| Part Number: | jep312416 |
| Pin Fit: | Yes |
| Piston Average Weight: | 289 |
| Piston Head Type: | Dish |
| Piston Material: | 2618 |
| Piston Quantity: | 5 |
| Piston Series: | JE Pistons |
| Piston To Wall Clearance: | -0.004 |
| Piston Volume: | -7.20 |
| Product Market: | Sport Compact |
| Product Type: | Engine Piston Kit |
| Prop 65 (C, R or CR): | CR |
| Prop 65 Yes/No: | Yes |
| Ring Set - Recommended: | HG1001-3307 |
| Ring Set Included: | Yes |
| Ring Set Part Number: | HG1001-3307 |
| Second Compression Ring Thickness: | 0.0480 |
| Skirt Coat: | Yes |
| Smooth Crown Finish: | No |
| Thermal Crown: | No |
| Top Compression Ring Thickness: | 0.0400 |
| Top Groove Width: | 0.04000 |
| Tuff Skirt: | No |
| Ultra Dome: | No |
| Ultra Groove Plus Gas Port: | No |
| Ultra Groove: | No |
| Vertical Gas Ports: | Yes |
| Wrist Pin Length: | 2.250 |
| Wrist Pin Material: | 5115 Low Carbon Steel, Case Hardened |
| Wrist Pin Outer Diameter: | 0.827 |
| Wrist Pin Wall Thickness: | 0.150 |
Application Summary
Ford 2.5L ST
Part Type
Engine Piston Kit
Features
- Accumulator Groove: A specialty groove between the top and second ring provides added volume for blow-by gases. This helps reduce pressure between the rings, improving top ring seal and minimizing ring flutter at high cylinder pressures.
- Designed specifically for Ford 2.5L ST Duratec Engines To provide optimized performance durability
- Forged in the USA using 2618 aluminum, yielding tensile strength and minimal thermal expansion
- Includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings
- Made 100% in the USA
- Pin Fit: The pin bore is precision honed to attain an exact pin clearance. Clearances typically range from .0003 to .0010 between the wrist pin and pin bore.
- Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin
- Skirt Coat: Skirt Coat reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise
- Vertical Gas Ports: Machined gas ports channel combustion pressure behind the top ring for improved cylinder sealing and reduced blow-by under high load. Common in drag racing applications where maximum ring seal is critical.
Specifications
- 2nd Groove Width:
- 0.048
- 3D Undercrown Milling:
- No
- Accumulator Groove:
- Yes
- Add-On:
- JG1001-3307
- Anodize Top Ring Groove:
- No
- Bore Diameter:
- 84.00
- Combo 2:
- No
- Compression Height:
- 1.118
- Compression Ratio:
- 0.33680555555556
- Connecting Rod Length:
- 5.669 IN
- Contact Reduction:
- No
- Cylinder Head:
- FORD ST 2.5
- DVGP:
- No
- Description:
- JE Pistons FOCUS ST 2.5 8.5:1 KIT Set of 5 Pistons
- Double Pin Oilers:
- No
- EN Plating:
- No
- Econo Undercrown Milling:
- No
- Engine Stroke:
- 3.669
- Engine Type:
- ICE
- Engine:
- 2.5L ST
- Exhaust Angle:
- 26
- Exhaust Depth:
- .140
- Exhaust Diameter:
- 1.300
- Forging Type:
- FSR
- Gas Distribution:
- No
- Industry:
- Automotive
- Intake Angle:
- 26
- Intake Depth:
- .230
- Intake Diameter:
- 1.550
- Lateral Gas Ports:
- No
- Make:
- Ford
- Mill Undercrown:
- No
- Oil Groove Width:
- 0.11100
- Oil Ring Thickness:
- 0.111
- Part Number:
- jep312416
- Pin Fit:
- Yes
- Piston Average Weight:
- 289
- Piston Head Type:
- Dish
- Piston Material:
- 2618
- Piston Quantity:
- 5
- Piston Series:
- JE Pistons
- Piston To Wall Clearance:
- -0.004
- Piston Volume:
- -7.20
- Product Market:
- Sport Compact
- Product Type:
- Engine Piston Kit
- Prop 65 (C, R or CR):
- CR
- Prop 65 Yes/No:
- Yes
- Ring Set - Recommended:
- HG1001-3307
- Ring Set Included:
- Yes
- Ring Set Part Number:
- HG1001-3307
- Second Compression Ring Thickness:
- 0.0480
- Skirt Coat:
- Yes
- Smooth Crown Finish:
- No
- Thermal Crown:
- No
- Top Compression Ring Thickness:
- 0.0400
- Top Groove Width:
- 0.04000
- Tuff Skirt:
- No
- Ultra Dome:
- No
- Ultra Groove Plus Gas Port:
- No
- Ultra Groove:
- No
- Vertical Gas Ports:
- Yes
- Wrist Pin Length:
- 2.250
- Wrist Pin Material:
- 5115 Low Carbon Steel, Case Hardened
- Wrist Pin Outer Diameter:
- 0.827
- Wrist Pin Wall Thickness:
- 0.150
Reference Information
| Brand Name/s | JE Pistons |
|---|---|
| StreetFX SKU | jep312416 |
| SFX Item ID | 4359950 |
| Supplier Item Code | 4359950 |
| Manufacturer SKU | 312416 |
| Manufacturer UPC | N/A |
Compatibility
Ford 2.5L ST
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