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Dart

BBC IR/BLK 10.400-STD-4.500 +.400 R

$5,979.90

SKU: D00Q 31213495

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

Advanced — 4+ hours

Description

Big M² cast iron block with steel caps for Big Block Chevy builds. Features: 10.400 in. deck height, 4.500 in. bore, +.400 in. raised cam location, billet steel 4-bolt main caps, standard mains, 220 BHN Cast Iron. True racing BBC block with raised +.400 cam location, siamese cylinder walls, priority main oiling, .842 lifter bores, press-fit freeze plugs, and a 2-piece rear seal. Includes Big M² parts kit.

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 31213495

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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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