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Engines and Components› Engines, Blocks and Components

BluePrint Engines

LS 427 625HP Crate Engine

$30,061.25 $24,799.00 Save $5,262.25

SKU: BLS42734L7

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Description

The BluePrint Engines LS 427 is a 427 cubic inch engine producing 625 horsepower and 565 ft-lbs of torque. It features a high-strength cast iron block with increased deck thickness and strength webbing, along with an extended cylinder skirt and improved water jacket design. This engine utilizes forged internals, including a 4.125-inch stroke crankshaft and 6.125-inch connecting rods, paired with forged pistons.

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

BrandBluePrint Engines
Part NumberBLS42734L7
CategoryEngines and Components

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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