Engines and Components› Pistons and Piston Rings

JE Pistons

LS ASYM DM 4000STRKR

$211.10

SKU: J001 312112L

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Special Order
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Description

The JE Pistons 312112L is a set of high-performance pistons designed for Chevrolet LS Gen III/IV engines. These pistons feature a 4.080-inch bore, a 4.000-inch stroke, and a 6.125-inch rod length, with a compression height of 1.115 inches. The dome-style piston head has a volume of -2.70cc and includes two valve reliefs.

Fitment

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Specifications

BrandJE Pistons
Part NumberJ001 312112L

Videos

A Better Way to Install Rods on Pistons

A Better Way to Install Rods on Pistons
How to install LS rods & pistons.

How to install LS rods & pistons.
Installing Gen 4 pistons and rods in our 5.3 LS along with gaping the rings and Cam installation.

Installing Gen 4 pistons and rods in our 5.3 LS along with gaping the rings and Cam installation.
Which way do LS pistons go on the connecting rods? Quick and to the point! 4.8 5.3 6.0 6.2

Which way do LS pistons go on the connecting rods? Quick and to the point! 4.8 5.3 6.0 6.2
Installing Pistons and Connecting Rod Assemblies (Engine Building 101)

Installing Pistons and Connecting Rod Assemblies (Engine Building 101)
How to Build a 5.3L LS LM7 V8 - Part 5: Putting Pistons in the Engine!

How to Build a 5.3L LS LM7 V8 - Part 5: Putting Pistons in the Engine!
Lets Install Pistons And Rods Into A LS Engine - HOW TO

Lets Install Pistons And Rods Into A LS Engine - HOW TO
Installing Pistons & Rods - Gen 3 vs Gen 4 + Ring Gap for Boost | How to Build a LS Engine (ep3)

Installing Pistons & Rods - Gen 3 vs Gen 4 + Ring Gap for Boost | How to Build a LS Engine (ep3)

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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