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Dart

BLK BIG M ALUM BBC 4.250/9.8

$8,202.13

SKU: D00Q 31264344

In Stock
In Stock
Ships by Jun 8
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Description

The Dart 31264344 is an Aluminum Big M Engine Block designed for Big Block Chevy (BBC) applications. This high-performance, aftermarket component is for custom engine builds, racing, or non-emissions-controlled vehicles.

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 31264344

Videos

Dart Big M Pro Engine Blocks

Dart Big M Pro Engine Blocks
Tim Talks 555ci BBC Short Blocks

Tim Talks 555ci BBC Short Blocks
David Freiburger's Quest for 1,000HP NA with Dart 582 BBC

David Freiburger's Quest for 1,000HP NA with Dart 582 BBC
Building a 632" Big Block Chevy - Block Prep (part 1)

Building a 632" Big Block Chevy - Block Prep (part 1)

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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