JE Pistons Ford Modular 3.661in Bore 1.168in CH 1.36 CC Piston Kit
Technical Data
Features & Benefits
-
Forged 2618 Aluminum Alloy – Maximum strength and excellent thermal resistance for high-compression and boosted applications.
-
+1.36 cc Dome Volume – Ideal for naturally aspirated builds that need a bump in compression.
-
1.168″ Compression Height – Works seamlessly with Gen 3 Coyote rod/stroke combinations.
-
FSR Skirt Design – Lightweight with reduced drag, perfect for performance and longevity.
-
Balanced Set – CNC-machined and weight-matched for perfect engine balance and smoother operation.
-
Made in the USA – Precision engineered and manufactured for American muscle performance.
-
Piston Weight – Approximately 374 grams (0.83 lbs) per piston.
-
Total Kit Weight – Approximately 12 lbs (boxed, with pins and locks).
Upgrade Your Coyote Build
Whether you're street-tuning your Mustang GT or prepping for a weekend track assault, this kit gives you a race-ready edge without sacrificing daily reliability. Get stronger, lighter internals built to rev higher and go harder — with zero compromise.
Specifications
| Specification | Details |
|---|---|
| SKU / Part Number | 353904 |
| Bore Size | 3.661 in |
| Compression Height | 1.168 in |
| Dome Volume | +1.36 cc |
| Material | Forged 2618 Aluminum |
| Piston Design | FSR (Forged Side Relief) |
| Piston Weight | 374 g / 0.83 lb per piston |
| Wrist Pin Diameter | 0.866 in |
| Wrist Pin Specs | 5115 steel, 2.250″ length, 0.180″ wall |
| Ring Stack | 1.0 mm / 1.2 mm / 2.8 mm |
| Compatible Stroke | 3.650 in |
| Rod Length Compatibility | 5.933 in |
| Engine Application | Ford Modular 5.0L Gen 3 Coyote (2018+) |
| Total Kit Weight | Approx. 12 lbs (boxed) |
| Manufactured In | USA |
Fitment
This piston kit is engineered to fit Ford 5.0L Coyote Gen 3 engines (2018+), including:
-
2018–2023 Ford Mustang GT (Gen 3 Coyote)
-
2018–2023 Ford F-150 5.0L Coyote
-
Custom or stroker Gen 3 builds using 3.650" stroke and 5.933" rods
Cylinder block must be machined to 3.661″ bore for proper installation.
What’s Included
-
(8) Forged 2618 aluminum pistons
-
(8) Wrist pins (0.866″ × 2.250″, 5115 alloy)
-
(8) Wire locks
-
(1) Complete set of CNC-machined piston skirts
-
Piston rings sold separately
REVIEWS
Installed these in my '19 Mustang GT build—engine revs smoother and responds quicker. The weight drop is noticeable from day one.
Ben H.
Dallas, TX
No piston slap, no drama—just solid performance. Thanks to the FSR design, it's quieter and faster off the line.
Sarah R.
Phoenix, AZ
Specifications
Fitment Data
• Engineered for precision compatibility with high-performance builds.
• Tested under extreme mechanical stress for guaranteed structural integrity.
Use the Riot Vehicle Finder to verify exact sub-model compatibility.
Logistics center
