Engines & Components - Free Shipping on Orders Over $109 at Summit Racing

BluePrint Builder Series LS427/605HP Standard Edition EFI Crate Engine and TKX Transmission Combos BLS4273KTKX

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

Part Number: MLL-BLS4273KTKX

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 if ordered today

BluePrint Builder Series LS427/625HP Standard Edition EFI Crate Engine and 4L65/70E Trans Combos BLS4278KB4L7

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

Part Number: MLL-BLS4278KB4L7

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Estimated Ship Date: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 if ordered today

BluePrint Builder Series LS376/530HP Standard Edition EFI Crate Engine and T56 Trans Combos BLS3763KT56

Engine 376 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, T56 Manual Transmission w/ Polished Pulley Kit

Part Number: MLL-BLS3763KT56

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 if ordered today

BluePrint Builder Series LS376/530HP Standard Edition EFI Crate Engine and T56 Transmission Combos BLS3768KBT56

Engine 376 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, T56 Manual Transmission w/ Black Pulley Kit

Part Number: MLL-BLS3768KBT56

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Estimated Ship Date: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 if ordered today

BluePrint Builder Series LS376/530HP Standard Edition EFI Crate Engine and T56 Transmission Combos BLS3768T56

Engine 376 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected T56 Manual Transmission

Part Number: MLL-BLS3768T56

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Estimated Ship Date: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 if ordered today

BluePrint Builder Series LS376/530HP Standard Edition EFI Crate Engine and 4L65/70E Trans Combos BLS3768KB4L7

Engine 376 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, 4L65/70E Automatic Transmision w/ Black Pulley Kit

Part Number: MLL-BLS3768KB4L7

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 if ordered today

S&S Cycle V-Series Long Block Engines 310-0766

Long Block, V-Series, 111 in., 585 in. Cam, Carbureted/Fuel Injected, Black Wrinkle Finish, Harley-Davidson®, Evolution, Each

Part Number: SSY-310-0766

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Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

S&S Cycle V-Series Long Block Engines 310-0829

Long Block, V-Series, 111 in., 585 in. Cam, Carbureted/Fuel Injected, Black Edition, Harley-Davidson®, Evolution, Each

Part Number: SSY-310-0829

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Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

S&S Cycle T-Series Long Block Engines 310-0833

Long Block, T-Series, 143 in., 635 in. Cams, Carbureted/Fuel Injected, Black Edition, Harley-Davidson®, Twin Cam, Each

Part Number: SSY-310-0833

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Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

Crower Standard Series Crankshafts 95120

Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, Custom Order, Chevy, Each

Part Number: CRO-95120

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Crower Standard Series Crankshafts 95122

Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, 3.500 in. Stroke, Chevy, Each

Part Number: CRO-95122

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Crower Billet Crankshafts 95122C

CRANKSHAFT 4340 BILLET SB CHEVY 3.500 STROKE (HOLES INCL)

Part Number: CRO-95122C

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

Crower Standard Series Crankshafts 95123

Crankshaft, 2-piece seal, Internal Balance, Forged 4340 Steel, 3.562 in. Stroke, Custom Order, Chevy, Each

Part Number: CRO-95123

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Crower Billet Crankshafts 95123C

CRANKSHAFT 4340 BILLET SB CHEVY 3.562 STROKE (HOLES INCL)

Part Number: CRO-95123C

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

Crower Billet Crankshafts 95124C

CRANKSHAFT 4340 BILLET SB CHEVY 3.625 STROKE (HOLES INCL)

Part Number: CRO-95124C

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

Crower Standard Series Crankshafts 95125

Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, 3.750 in. Stroke, Chevy, Each

Part Number: CRO-95125

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Crower Billet Crankshafts 95125C

CRANKSHAFT 4340 BILLET SB CHEVY 3.750 STROKE (HOLES INCL)

Part Number: CRO-95125C

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

Crankshaft, Standard Series, Forged 4340 Steel, 3.750 in. Stroke, Dodge, Plymouth, 426 Hemi, Each

Part Number: CRO-95162

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

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