Engines and Components› Pistons and Piston Rings
JE Pistons
BBC BIG CHF 3815 HEAD +15.6CC (6420
SKU: J001 K420B110
Advanced — 4+ hours
Description
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 K420B110 |
Videos
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How to identify your JE Pistons
![Why Forged Pistons Are BETTER Than Cast | JE Ultra Series Pistons [TECH TALK]](https://img.youtube.com/vi/89NtAeofjJw/hqdefault.jpg)
Why Forged Pistons Are BETTER Than Cast | JE Ultra Series Pistons [TECH TALK]
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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