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JE Pistons BBC INV DOME Set of 8 Pistons
JE Pistons BBC INV DOME Set of 8 Pistons
Description
JE Auto 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 Chevrolet Big Block 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
For over 60 years, JE Pistons has been the industry leader in forged racing pistons for Chevy, Ford, Mopar and Buick engines.
*Application Specific Forgings for an Optimized, Uniform Crown Thickness
*Contact Reduction Groove to Minimize Frictional Drag
*Accumulator Groove for Increased Top Ring Stability and Sealing
*CNC-Machined Side Relief with Lower Support Band for Additional Skirt Strength
*Honed Pin Bores, Double Pressure Fed Pin Oilers and Wire Locks Included
JE Pistons are sold as matched sets.
Features and Benefits
- Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applicationsDesigned specifically for each engine and use application to provide optimized performance durabilityProprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pinSkirt coating (depending on application) reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noiseAccumulator groove (depending on application) helps reduce pressure from combustion gases, reducing ring fluttering and improving ring seal for consistent powerMade 100% in the USA
Product Details
| Add-On: | 990-042-CS |
|---|---|
| Block Height: | 9.78 |
| Bore Diameter - Web: | 4.500 IN |
| Bore Diameter: | 4.500 |
| Bore: | 4.5 |
| CID: | 540 |
| Category Hierarchy: | Auto>JE Pistons>Piston Kits>Domestic |
| Comp Height: | 1.52 |
| Comp Ratio @ 110cc: | 8.8:1 |
| Comp Ratio @ 118cc: | 8.4:1 |
| Comp Ratio @ 124cc: | 8.1:1 |
| Compression Height: | 1.520 |
| Cylinder Head: | OPEN CHAMBER |
| Description: | JE Pistons; Inverted Dome; Set of 8 Pistons; Recommended RingSet: J100F8-4500-5 |
| Dome Volume: | -20 |
| Engine - Web: | Big Block |
| Engine Type: | ICE |
| Engine: | Big Block |
| Forging Type: | Round |
| Gram Weight: | 626 |
| Industry: | Automotive |
| Make - Web: | Chevrolet |
| Make: | Chevrolet |
| Oil Ring Thickness: | 0.188 |
| Out of Stock Message: | Please Allow Approximately 3 Weeks or Less for Shipping |
| Oversize: | 0.034 |
| Part Number: | jep257951 |
| Piston Average Weight: | 626 |
| Piston Head Type: | Dish |
| Piston Material: | 2618 |
| Piston Quantity: | 8 |
| Piston Series: | JE Pistons |
| Piston Volume: | -20.00 |
| Product Market: | Domestic |
| Product Type: | Engine Piston Kit |
| Prop 65 (C, R or CR): | CR |
| Prop 65 - Short Label: | Prop 65 Warning Label.JPG |
| Prop 65 Yes/No: | Yes |
| Ring Set Included: | No |
| Rod: | 6.135 |
| Second Compression Ring Thickness: | 0.0640 |
| Stroke: | 4.25 |
| Title - Web: | JE Pistons Chevrolet Big Block Piston Kit - 4.500 in. Bore - 1.520 in. CH, -20.00 CC |
| Title: | JE Pistons - Chevrolet, Big Block, 4.500 in. Bore, Piston Kit |
| Top Compression Ring Thickness: | 0.0640 |
| Wrist Pin Length: | 2.930 |
| Wrist Pin Material: | 5115 Low Carbon Steel, Case Hardened |
| Wrist Pin Outer Diameter: | 0.990 |
| Wrist Pin Wall Thickness: | 0.180 |
Application Summary
Chevrolet Big Block 502
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 Chevrolet Big Block Engines To provide optimized performance durability
- Double Pin Oilers: Deliver twice the amount of oil to the wrist pin as compared to the standard single pin oiler.
- Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
- Includes high-quality wrist pins, and locks
- 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
- Smooth Crown Finish: Deburs all areas around the valve pocket and dome area, to reduces stress risers and prevent hot spots.
Specifications
- Add-On:
- 990-042-CS
- Block Height:
- 9.78
- Bore Diameter - Web:
- 4.500 IN
- Bore Diameter:
- 4.500
- Bore:
- 4.5
- CID:
- 540
- Category Hierarchy:
- Auto>JE Pistons>Piston Kits>Domestic
- Comp Height:
- 1.52
- Comp Ratio @ 110cc:
- 8.8:1
- Comp Ratio @ 118cc:
- 8.4:1
- Comp Ratio @ 124cc:
- 8.1:1
- Compression Height:
- 1.520
- Cylinder Head:
- OPEN CHAMBER
- Description:
- JE Pistons; Inverted Dome; Set of 8 Pistons; Recommended RingSet: J100F8-4500-5
- Dome Volume:
- -20
- Engine - Web:
- Big Block
- Engine Type:
- ICE
- Engine:
- Big Block
- Forging Type:
- Round
- Gram Weight:
- 626
- Industry:
- Automotive
- Make - Web:
- Chevrolet
- Make:
- Chevrolet
- Oil Ring Thickness:
- 0.188
- Out of Stock Message:
- Please Allow Approximately 3 Weeks or Less for Shipping
- Oversize:
- 0.034
- Part Number:
- jep257951
- Piston Average Weight:
- 626
- Piston Head Type:
- Dish
- Piston Material:
- 2618
- Piston Quantity:
- 8
- Piston Series:
- JE Pistons
- Piston Volume:
- -20.00
- Product Market:
- Domestic
- Product Type:
- Engine Piston Kit
- Prop 65 (C, R or CR):
- CR
- Prop 65 - Short Label:
- Prop 65 Warning Label.JPG
- Prop 65 Yes/No:
- Yes
- Ring Set Included:
- No
- Rod:
- 6.135
- Second Compression Ring Thickness:
- 0.0640
- Stroke:
- 4.25
- Title - Web:
- JE Pistons Chevrolet Big Block Piston Kit - 4.500 in. Bore - 1.520 in. CH, -20.00 CC
- Title:
- JE Pistons - Chevrolet, Big Block, 4.500 in. Bore, Piston Kit
- Top Compression Ring Thickness:
- 0.0640
- Wrist Pin Length:
- 2.930
- Wrist Pin Material:
- 5115 Low Carbon Steel, Case Hardened
- Wrist Pin Outer Diameter:
- 0.990
- Wrist Pin Wall Thickness:
- 0.180
Reference Information
| Brand Name/s | JE Pistons |
|---|---|
| StreetFX SKU | jep257951 |
| SFX Item ID | 4359337 |
| Supplier Item Code | 4359337 |
| Manufacturer SKU | 257951 |
| Manufacturer UPC | N/A |
Compatibility
Chevrolet Big Block 502
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