Engines and Components› Pistons and Piston Rings

JE Pistons

BBC 20'' -4.625/.990/18CC

$237.49

SKU: J001 377900S

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Description

BBC 20'' -4.625/.990/18CC

MIA's Description

The JE Pistons 377900S is a set of forged pistons designed for Chevrolet Big Block engines. Constructed from 2618-T6 aluminum, these pistons are built for high-performance applications, including drag strip use. They feature a domed top with 18.0cc volume and are designed to work specifically with Dart 20-degree Pro 1 and Brodix SR20 cylinder heads.

Fitment

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Specifications

BrandJE Pistons
Part NumberJ001 377900S

Videos

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Designed for Big Power: 24° Big Block Chevy Forged Pistons from JE
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Stock vs race pistons: Which is better?
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The go to Ring compressor tool to install your pistons without damaging the piston rings. #rsgarage
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SBC Piston Ring and Rod Orientation (For the First time Builders)
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A Better Way to Install Rods on Pistons
Installing piston without removing engine block. #petrolengine #enginerebuild #piston

Installing piston without removing engine block. #petrolengine #enginerebuild #piston
Swapping Pressed Pistons For The Home Engine Builder

Swapping Pressed Pistons For The Home Engine Builder
Part 1: installing pistons and rods in the block.

Part 1: installing pistons and rods in the block.
How to identify your JE Pistons

How to identify your JE Pistons
How to Build a Chevrolet 454 Big Block Part 6: Replacing the Pistons and Rings

How to Build a Chevrolet 454 Big Block Part 6: Replacing the Pistons and Rings
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Cast vs. Forged Pistons: Which One is Best for Your Engine?
Difference Between 2618 and 4032 Forged Pistons

Difference Between 2618 and 4032 Forged Pistons
Which Forged Pistons Are Right For Your Build? | 🏁 Fast Facts

Which Forged Pistons Are Right For Your Build? | 🏁 Fast Facts
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The LIGHTEST Pistons EVER: Introducing Hollow Crown
Fool proof installing pistons on rods of a Small Block Chevy

Fool proof installing pistons on rods of a Small Block Chevy

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.

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