Engines and Components Engines, Blocks and Components

Dart

LS 427 FORGED H-BEAM 4.125 DISH-TOP

$13,123.76

SKU: D00Q 03484272DT

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The Dart 03484272DT is a 427 cubic inch Dart Engine LS, LS3/LS7 compatible rotating assembly, featuring a 4.000x4.125 bore and stroke, billet crank, H-beam rods, and forged pistons. This professionally built short block is designed for street performance and Sportsman racing, simplifying engine building with pre-engineered, dyno-tested combinations from Dart's SHP (Special High Performance) group.

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

BrandDart
Part NumberD00Q 03484272DT

Videos

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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