Engines and Components› Pistons and Piston Rings

JE Pistons

BBC FSR DOME GP 49CC

$237.49

SKU: J001 330166S

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
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Description

The JE Pistons 330166S is a set of pistons designed for circle track and drag racing applications. These pistons are forged from 2618 aluminum for durability and strength. They feature a hollow dome design and are gas ported for improved performance.

Key specifications include a 4.610-inch bore size, a 1.120-inch compression height, and a 0.990-inch wrist pin size. The pistons accept a .043/.043/3.0mm ring package and have deeper valve pockets to accommodate higher lift cams and milled cylinder heads.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandJE Pistons
Part NumberJ001 330166S

Videos

We Won an Award for These! SEMA Sneak Peek 👀

We Won an Award for These! SEMA Sneak Peek 👀
How to identify your JE Pistons

How to identify your JE Pistons
Introducing the Strongest Pistons in Powersports | JE Ultra Series

Introducing the Strongest Pistons in Powersports | JE Ultra Series
StreetLegalTV.com-JE Pistons with their latest LS series

StreetLegalTV.com-JE Pistons with their latest LS series
Piston Coatings 101: Which is the Right One for You?

Piston Coatings 101: Which is the Right One for You?
Why Forged Pistons Are BETTER Than Cast | JE Ultra Series Pistons [TECH TALK]

Why Forged Pistons Are BETTER Than Cast | JE Ultra Series Pistons [TECH TALK]
Which SRP Piston is Right for You?

Which SRP Piston is Right for You?
Cast vs. Forged Pistons: Which One is Best for Your Engine?

Cast vs. Forged Pistons: Which One is Best for Your Engine?
JE Pistons Asymmetrical Design Overview

JE Pistons Asymmetrical Design Overview
Are Piston Coatings Worth Having AND Can Coatings Save Your Engine? [TECH TALK]

Are Piston Coatings Worth Having AND Can Coatings Save Your Engine? [TECH TALK]
Bottom End Buyers Guide - How to Choose the RIGHT Pistons Rods Bearings Studs Gaskets Cranks Sleeves

Bottom End Buyers Guide - How to Choose the RIGHT Pistons Rods Bearings Studs Gaskets Cranks Sleeves

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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