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Dart

ALUM BLOCK 4.5 BORE SPACE SBC

$9,313.24

SKU: D00Q 31511332

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

Professional / shop required

Description

Aluminum, 350 Main, 9.500 Deck Height, 4.180 bore, BBC Cam. Features 4.500 bore spacing for larger bore sizes and improved head gasket sealing with extra head studs. Ideal for big inch competition engines. Raised cam location (.391) and spread oil pan rails (.400 per side) provide clearance for stroker crankshafts. Standard big block cam bearing journals, with 350 or 400 main bearings available. Contact Dart or CNC-Motorsports for build consultation.

Fitment

Fitment Guaranteed

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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 31511332

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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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