Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Engines and Components› Pistons and Piston Rings

JE Pistons

LS ASYM FT 4.100STRK

Name: LS ASYM FT 4.100STRK
Brand: JE Pistons
SKU: J001 311996L
Price: 199.57 USD
Availability: InStock

$199.57

SKU: J001 311996L

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Overview

The JE Pistons piston is a forged aluminum component designed for LS Gen III/IV engines with a 4.075 in. bore and a 4.100 in. stroke, resulting in a 7.0L/428 displacement. This piston features a flat top design with two valve reliefs and a +5.00cc piston head volume. It is engineered for extreme applications and professional competition, requiring the high-tensile strength of forged 2618 aluminum construction.

The piston utilizes a proprietary Forged Side Relief (FSR) forging design to minimize friction and power loss by reducing skirt width. The wrist pin style is press-fit or floating, with a pin diameter of 0.927 in. This piston is sold individually and fits the left side exhaust valve orientation.

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LS ASYM FT 4.100STRK

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

Brand	JE Pistons
Part Number	J001 311996L

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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