Engines and Components› Engines, Blocks and Components

Dart

BBC IR/BLK SPORTS 9.800-4.250 NO KI

$2,730.08

SKU: D00Q U31223344

In Stock
In Stock
Ships by Jun 11
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Description

Designed for Big Block Chevy applications, this Dart Big M Sportsman Cast Iron Engine Block features ductile iron 4-bolt main caps and siamesed extra-thick cylinder walls. It's clearanced for a 4.500-inch stroke with steel rods without grinding, and has splayed outer main cap bolts. It uses a true priority main oil system with a stepped main oil gallery (9/16 in. to 1/2 in. to 7/16 in.) and a front oil crossover. Lifter valley head stud bosses prevent blown head gaskets, and it includes dual oil pan bolt patterns.

Fitment

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Specifications

BrandDart
Part NumberD00Q U31223344

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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