Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
JE Pistons SRP 2618 Alloy Forged Pistons
Piston, Forged, Dome, Single Valve Relief, 4.500 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Each
See More Specifications
|
Check the Fit
Estimated Ship Date: Mar 12, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
140329S
Part Type:
Product Line:
Summit Racing Part Number:
JEP-140329S
UPC:
193564262646
Piston Rings Included:
No
Bore (in.):
4.500 in.
Bore (mm):
114.300mm
Stroke:
4.250 in.
Engine Stroke Type:
Stroked
Actual Engine Displacement:
8.8L/540
Rod Length:
6.385 in.
Piston Style:
Dome, with single valve relief
Piston Material:
Forged aluminum
Compression Height (in.):
1.270 in.
Piston Head Volume (cc):
-36.00cc
Wrist Pin Style:
Press-fit or floating
Wrist Pin Retainers Included:
Yes
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.990 in.
Piston Ring Thickness:
0.064 in. x 0.064 in. x 0.218 in.
File Fit:
No
Gapless:
No
Top Ring Thickness:
0.064 in.
Second Ring Thickness:
0.064 in.
Oil Ring Thickness:
0.218 in.
Remanufactured:
No
Quantity:
Sold individually.
Notes:
Made from 2618 alloy forged aluminum.
JE Pistons SRP 2618 Alloy Forged Pistons
JE Pistons developed the SRP Pro 2618 Series alloy forged pistons over the course of an entire year using 3D modeling with several revisions being tested using FEA (finite element analysis). These pistons offer superior strength for high boost/nitrous racing with alloy forged 2618 aluminum, featuring designs for optimal ring seal (accumulator grooves) and low friction (skirt coatings). Optimize your engine's power for maximum performance with JE Pistons SRP 2618 Series forged pistons.
Key features:
* Application-Specific—best suited for racing/high-performance builds
* Forged using 2618 aluminum, yielding high-tensile strength needed for high-demand performance applications
* 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
* Ring groove design placement proven to maintain positive seal in high-HP, boosted applications, along with stout top land thickness for improved strength
* Low-friction skirt coating reduces wear and reduces operating noise while optimizing performance
* Includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings
* Accumulator groove helps reduce pressure from combustion gases, reducing ring fluttering and improving ring seal for consistent power
* Value-focused—provides premium features at a more accessible price point than ultra-high-end pistons, suitable for serious racers on a budget
Applications
Loading...
Loading...
Questions & Answers
Ask a Question
What type of question would you like to submit?
I have a Customer Service question
(order, shipping, returns, protection plans, etc.). Customer Service Question
(order, shipping, returns, protection plans, etc.). Customer Service Question
- OR -
I would like to ask other customers
a question about this Product. Product Related Question
a question about this Product. Product Related Question
Loading...
Reviews Write a Review
Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.
Email this page
