BluePrint Engines - ls header bolt KEYWORD - Free Shipping Savings Central - Free Shipping on Orders Over $109 at Summit Racing

BluePrint Builder Series LS427/585HP Standard Edition EFI Crate Engine and 4L65/70E Trans Combos BLS4278K4L7

Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, 4L65/70E Automatic Transmission w/ Polished Pulley Kit

Part Number: MLL-BLS4278K4L7

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Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, T56 Manual Transmission w/ Polished Pulley Kit

Part Number: MLL-BLS4278KT56

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Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, T56 Manual Transmission w/ Black Pulley Kit

Part Number: MLL-BLS4278KBT56

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Crate Engine, 427 Stroker, GM LS Compatible Stroker Engine, Deluxe Dressed, Fuel Injected, with Polished Pulley Kit, Chevy, Each

Part Number: MLL-PSLS4278CTFK

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Estimated Ship Date: Nov 24, 2025 if ordered today