Engines and Components› Pistons and Piston Rings
JE Pistons
BBC 20" 4.610/.990/23CC
SKU: J001 377914S
Advanced — 4+ hours
Description
This piston is engineered and machined in the USA, offering durability and performance. It includes features like a proprietary Forged Side Relief (FSR) design to minimize friction and power loss, and an accumulator groove to improve ring seal.
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 377914S |
Videos
Piston Coatings 101: Which is the Right One for You?
Introducing the Strongest Pistons in Powersports | JE Ultra Series
How to identify your JE Pistons
JE Pistons Asymmetrical Design Overview
JE's Revolutionary Perfect Skirt Coating
How to Measure Piston to Wall Clearance on a JE Perfect Skirt Piston
Designed for Big Power: 24° Big Block Chevy Forged Pistons from JE
JE Ultra Series: Feature-Rich, Power-Ready Pistons off the Shelf
Cast vs. Forged Pistons: Which One is Best for Your Engine?
Piston Options - What to look for when buying pistons for your 2JZ | RS Garage Jays Tech Tips
Which SRP Piston is Right for You?
Difference Between 2618 and 4032 Forged Pistons
Which Forged Pistons Are Right For Your Build? | 🏁 Fast Facts
ICON FORGED PISTONS, why you need them!!
JE Pistons Facility Tour
Bottom End Buyers Guide - How to Choose the RIGHT Pistons Rods Bearings Studs Gaskets Cranks Sleeves
Wiseco Pistons, Scat Rods and JE Rings...#5 Chevy 454 Big Block Performance Build...
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