Engines and Components› Engines, Blocks and Components

Dart

BBC IR/BLK SPORTS10.200-4.600 NO KI

$2,816.10

SKU: D00Q U31223654

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

Professional / shop required

Description

The Dart Big M iron engine block is a high-performance cast iron block designed for Big Block Chevy (BBC) race applications. It offers enhanced strength, durability, and features compared to traditional production blocks, making it ideal for serious street and competition engines. It serves as a foundation for building high-horsepower BBC engines, providing improved oil control, main bearing support, and cylinder wall integrity. Its tall deck design allows for longer stroke crankshafts, supporting displacement builds up to 632 cubic inches and beyond.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

Available on iOS & Android

Specifications

BrandDart
Part NumberD00Q U31223654

Videos

Dart Big M Pro Engine Blocks

Dart Big M Pro Engine Blocks
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1,000HP N/A 632\" - Short Block Assembly - Part 2
Dart University, Oiling Systems

Dart University, Oiling Systems
Dart University: How to Identify Dart's Blocks and Heads

Dart University: How to Identify Dart's Blocks and Heads

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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