Engines and Components› Pistons and Piston Rings
JE Pistons
400 SBC DISH -21CC
SKU: J001 139624S
Advanced — 4+ hours
Description
MIA's Description
With a bore of 4.145 inches and a stroke of 3.750 inches, these pistons are intended for use with stock engine stroke types and contribute to an actual engine displacement of 6.6L/405. The compression height is 1.425 inches, and the piston head volume is +21.00cc. The wrist pin style is press-fit or floating, and the package includes wrist pin retainers and the wrist pin itself with a diameter of 0.927 inches.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | JE Pistons |
| Part Number | J001 139624S |
Videos
How to identify your JE Pistons
Cast vs. Forged Pistons: Which One is Best for Your Engine?
A Better Way to Install Rods on Pistons
Piston Coatings 101: Which is the Right One for You?
Designed for Big Power: 24° Big Block Chevy Forged Pistons from JE
Fool proof installing pistons on rods of a Small Block Chevy
Pistons and Engine Compression Ratio - FAQ - Summit Racing Quick Flicks
Swapping Pressed Pistons For The Home Engine Builder
Which Forged Pistons Are Right For Your Build? | 🏁 Fast Facts
Difference Between 2618 and 4032 Forged Pistons
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy