Engines and Components› Cylinder Heads and Components

Darton Sleeves

Darton LS Seal Tight Kit Part 2

$528.00

SKU: D01N 300-023-DF X4

In Stock
In Stock
Ships by Jun 7
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Darton Sleeves 300-023-DF X4 is a four-piece cylinder sleeve kit for GM LS2, LS3, LS4, LS7, L92, and LT1 engines. Made from ductile iron, these sleeves offer 130,000 psi of tensile strength and feature a 3.875-inch bore, 5.800-inch height, and 0.225-inch wall thickness. They incorporate a patented Modular Integrated Deck (MID) design for enhanced upper deck reinforcement and Swirl Coolant Technology for superior thermal management.

Fitment

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Specifications

BrandDarton Sleeves
Part NumberD01N 300-023-DF X4

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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