Engines & Engine Parts

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched...

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your...

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BluePrint Builder Series LS376/530HP Standard Edition EFI Crate Engine and 4L65/70E Trans Combos BLS3763KB4L7

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

Part Number: MLL-BLS3763KB4L7

Not Yet Reviewed

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Summit Racing™ Steel Rocker Arms SUM-G6800

Rocker Arms, Stud Mount, OEM-Style, Stamped Steel, 1.5 Ratio, Fits 3/8 in. Stud, Chevy, Small Block, Set of 16

Part Number: SUM-G6800

4.86 out of 5 stars ( 56 )

Estimated Ship Date: Today

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BluePrint Builder Series LS427/625HP Standard Edition EFI Crate Engine and 4L65/70E Trans Combos BLS427K4L7

Engine and Transmission Combo, Builder Series, LS427/625HP, Standard Edition, EFI, 4L65/70E , Aluminum Heads, 7.0L/427, Chevy LS, Kit

Part Number: MLL-BLS427K4L7

Not Yet Reviewed

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BluePrint Builder Series LS376/530HP Standard Edition EFI Crate Engine and TKX Transmission Combos BLS376KTKX

Engine and Transmission Combo, Builder Series, LS376/530HP, Standard Edition, EFI, TKX , Aluminum Heads, 6.2L/376, Chevy LS, Kit

Part Number: MLL-BLS376KTKX

Not Yet Reviewed

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BluePrint Builder Series 302W/365HP Bronco Edition EFI Crate Engine and 4R70W Transmission Combos B302FKB4WDB

Engine and Transmission Combo, Builder Series, 302W/365HP, Bronco Edition, EFI, 4R70W , Aluminum Heads, 5.0L/302, Ford Windsor, Kit

Part Number: MLL-B302FKB4WDB

Not Yet Reviewed

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BluePrint Builder Series LS427/585HP Standard Edition EFI Crate Engine and T56 Transmission Combos BLS4278KBT56

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

Part Number: MLL-BLS4278KBT56

Not Yet Reviewed

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BluePrint Builder Series 632/815HP Standard Edition EFI Crate Engine and 4L80E Transmission Combos B632FK4L8

Engine and Transmission Combo, Builder Series, 632/815HP, Standard Edition, EFI, 4L80E , Aluminum Heads, 10.3L/632, Chevy Big Block, Kit

Part Number: MLL-B632FK4L8

Not Yet Reviewed

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BluePrint Builder Series LS376/530HP Standard Edition EFI Crate Engine and 4L65/70E Trans Combos BLS3763K4L7

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

Part Number: MLL-BLS3763K4L7

Not Yet Reviewed

Estimated Ship Date: Today

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BluePrint Builder Series LS376/510HP Standard Edition EFI Crate Engine and TKX Transmission Combos BLS3768KTKX

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

Part Number: MLL-BLS3768KTKX

Not Yet Reviewed

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BluePrint Builder Series 302W/365HP Bronco Edition Carbureted Crate Engine and 4R70W Trans Combos B302KB4WDB

Engine and Transmission Combo, Builder Series, 302W/365HP, Bronco Edition, Carbureted, 4R70W , Aluminum Heads, 5.0L/302, Ford Windsor, Kit

Part Number: MLL-B302KB4WDB

Not Yet Reviewed

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BluePrint Builder Series 427W/541HP Cobra Edition EFI Crate Engine and TKX Transmission Combos BF427FKTKXC

427 c.i. Cobra Edition Builder Series, Fuel Injected, TKX Manual Transmission w/ Polished Pulley Kit. Incl. 30 month/50,000 warranty & Dyno

Part Number: MLL-BF427FKTKXC

Not Yet Reviewed

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BluePrint Builder Series 347W/415HP Standard Edition EFI Crate Engine and 4R70W Transmission Combos B347FK4R7

Engine and Transmission Combo, Builder Series, 347W/415HP, Standard Edition, EFI, 4R70W , Aluminum Heads, 5.7L/347, Ford Windsor, Kit

Part Number: MLL-B347FK4R7

Not Yet Reviewed

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BluePrint Builder Series 347W/415HP Mustang Edition EFI Crate Engine and 4R70W Transmission Combos B347FK4R7M

Engine and Transmission Combo, Builder Series, 347W/415HP, Mustang Edition, EFI, 4R70W , Aluminum Heads, 5.7L/347, Ford Windsor, Kit

Part Number: MLL-B347FK4R7M

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Kibblewhite Engine Builder Series Wrist Pin Bushings 20-20580

Wrist Pin Bushing, Engine Builder Series, Bronze, Stock O.D., Harley-Davidson®, Each

Part Number: KPM-20-20580

Not Yet Reviewed

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BluePrint Builder Series LS376/530HP Standard Edition EFI Crate Engine and 4L65/70E Trans Combos BLS37634L7

Engine 376 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, 4L65/70E Automatic Transmission

Part Number: MLL-BLS37634L7

Not Yet Reviewed

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BluePrint Engines Pro Series Chevy 502 C.I.D. 627 HP Dressed Long Block Crate Engines PS502CTC

Crate Engines, Pro Series Chevy 502 C.I.D. 621 HP Dressed Long Block, 8.2L/502, Assembled, Aluminum Cylinder Heads, Chevrolet, 7.4L, 8.2L, Each

Part Number: MLL-PS502CTC

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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BoostLine Connecting Rods LS6125-927

Connecting Rods, Forged 3-Pocket Beam, 6.125 in. Length, ARP2000 Bolts, 692g, Chevy LS Engines/Gen V LT, Set

Part Number: BLN-LS6125-927

Not Yet Reviewed

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BTR LS Shaft Rocker Kits BTRSRKR3KITASMBTR

Rocker Arms, Shaft, Roller, 1.7 Ratio, for LS3 Heads, Chevy, 6.2L, Kit

Part Number: BTC-S0432

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Mahle Original Premium Piston Ring Sets 41859CP

Piston Rings, Plasma-moly, 3.780 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-41859CP

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Today

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BluePrint Engines Pro Series Chevy 572 C.I.D. 745 HP Fully Dressed Long Block Crate Engines PS5720CTCK

Crate Engine 572 BBC dressed W/ Polished Pulley Kit

Part Number: MLL-PS5720CTCK

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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March Performance Sport Track Chevy Serpentine Pulley Kits 21695-08

Pulleys, Sport Track, Serpentine, Performance Ratio, Billet Aluminum, Black Brackets, with P/S, without A/C, Chevy, Small Block, Long, Kit

Part Number: MCH-21695-08

4.0 out of 5 stars ( 22 )

Estimated Ship Date: Today

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BluePrint Motorsports Pro Series Chevy 632 C.I.D. 815 HP Fully Dressed Long Block Crate Engines PS6320CTCK

Crate Engine, Pro Series 815 HP Fully Dressed Long Block, Assembled, Tall Deck, Internal Balance, Aluminum Cylinder Heads, Chevy, 10.3L Big Block,Each

Part Number: MLL-PS6320CTCK

Not Yet Reviewed

Estimated Ship Date: Today