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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...

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 daily driver.

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Individual Parts

Results 1 - 25 of 2000 +

Pro LS 4340 Forged Steel H-Beam Connecting Rod, 6.125 in. Length, .927 Floating Pin, ARP 2000 7/16 in. 12 pt. Bolts, Stroker Clearanced, LS1, Set of 8

Part Number: SUM-LS6125927

4.85 out of 5 stars ( 13 )

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Cylinder Head Bolts, Pro Series, Hex Head, Chevy, 4.8, 5.3, 6.0L, 2004 and Newer, Kit

Part Number: ARP-134-3610

4.8 out of 5 stars ( 122 )

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Cylinder Head Studs, Pro Series, 12-Point Head, M11 and M8, 5 1/8 in. and 2 1/2 in. Lengths, 8740 Material, Chevy, 4.8, 5.3, 5.7, 6.0L, LS, Kit

Part Number: ARP-234-4317

4.55 out of 5 stars ( 40 )

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Pro SBC Stage 1 Hyd. Roller Cam, 204/214 Dur., 112 LSA + 1 Adv, .450/.450 1.5 Ratio, .480/.480 1.6 Ratio, Idle-5800 Range, '87-02 Gen 1 Roller Block

Part Number: SUM-8800

4.73 out of 5 stars ( 22 )

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Cam, Stage 2, LS Truck Swap Cam, 218/227 112+2, .522/.524 Lift, 3-bolt, 4.8, 5.3, 5.7, 6.0, 6.2, LS1 LS2 LS3 LS6 LS7 LS9 LQ4 LQ9 LH6 LM7 L96, Each

Part Number: SUM-8701R1

4.38 out of 5 stars ( 16 )

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Crankshaft, Pro LS, 4340 Forged Steel, 4 in. Stroke, 24X Reluctor, Lightened Rod Journals, Gun-drilled Mains, Internal balanced, LS1, Each

Part Number: SUM-180LS400024X

5.0 out of 5 stars ( 2 )

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Crate Engine, Long Block, GM LS Series 376 C.I.D., 520 HP, Internal Balance, 58x Reluctor, Aluminum Cylinder Heads, Chevy, 6.2L LS, Each

Part Number: MLL-PSLS37630CT

Not Yet Reviewed

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Crate Engine, Fully Dressed Long Block, GM LS Series 376 C.I.D., Internal Engine Balance, Aluminum Cylinder Heads, Chevy, 6.2L LS, Each

Part Number: MLL-PSLS3763CTFK

Not Yet Reviewed

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Oil Pan, Engine Swap, Cast Aluminum, Natural, 6.0 Quart Capacity, 4.25 in. Stroke Clearance, Chevy, LS, V8, Each

Part Number: SUM-121200

4.0 out of 5 stars ( 16 )

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Engine Long Block Iron Block 427 c.i. GM LS style proseries engine - longblock. incl. 30 month / 50,000 warranty & Dyno

Part Number: MLL-PSLS42730CT

5.0 out of 5 stars ( 1 )

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Crate Engine, Dressed, Long Block, 427 Stroker, 540 HP, 535 TQ, New Block, Aluminum Heads, 4-Bolt Mains, Chevrolet, Small Block, Each

Part Number: MLL-PS4272CTC1

5.0 out of 5 stars ( 5 )

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Stage 1 SUM-8718 Pro LS Drop-in Truck Swap Cam, Maximum Torque for Towing and Efficiency, 205/217 112+2, .500 /.500 Lift, 3-bolt, 4.8, 5.3, 6.0, 6.2

Part Number: SUM-8718R1

4.56 out of 5 stars ( 25 )

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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 )

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Pro SBC Hyd. Roller Hot Cam Plus, 218/227 Dur., 112 LSA + 1, .525/.520 1.5 Ratio, .560/.555 1.6 Ratio, 1800-6300 RPM Range, '87-02 Gen 1 Roller Block

Part Number: SUM-8802

5.0 out of 5 stars ( 3 )

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Crate Engine, Base Long Block, GM LS Series 376 C.I.D., Internal Engine Balance, Aluminum Cylinder Heads, Chevy, 6.2L LS, Each

Part Number: MLL-PSLS37630CTF

5.0 out of 5 stars ( 1 )

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Pro LS 4340 Rotating Assembly, 408 Cid., 4.030 bore, 4.000 stroke, 24X, 6.125 rod, 20cc dish, 9.8:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R244003020

5.0 out of 5 stars ( 2 )

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Rocker Arms, Trunnion Upgrade, Assembled, Cast Steel, 1.7 Ratio, Straight Body, Cathedral Port, Chevy, LS1, LS2, LS6, LQ4, LQ9, Set of 16

Part Number: SUM-141556

4.06 out of 5 stars ( 17 )

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Summit E303 Plus Hyd. Roller Cam, 220/231 Duration, 113 LSA + 0 Adv, .550/.540 1.6 Ratio, .585/.574 1.7 Ratio, 2500-6000 Range, 85-1996 Roller Block

Part Number: SUM-8900

4.22 out of 5 stars ( 9 )

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Rocker Arm; Ultra Pro Magnum; Rocker Arm; Stud 7/16 in. Ratio 1.7 in.; Chevy Big Block 396-454 cid; 16 pc.

Part Number: CCA-1620-16

4.95 out of 5 stars ( 38 )

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Pro LS 4340 Forged Steel Crank, 4.000 Stroke, 58X Reluctor, Lightened Rod Journals and Gun-drilled Mains, Std. 6-bolt Flange, Internal balanced, LS3

Part Number: SUM-180LS400058X

4.83 out of 5 stars ( 6 )

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Pro LS 4340 Forged Steel Crank, 3.622 Stroke, 24X Reluctor, Lightened Rod Journals and Gun-drilled Mains, Std. 6-bolt Flange, Internal balanced, LS1

Part Number: SUM-180LS362224X

3.67 out of 5 stars ( 3 )

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Cylinder Head Studs, Pro Series, Hex Head, Pre-2004 Design with Different Bolt Lengths, Chevy, 4.8, 5.3, 5.7, 6.0L, Kit

Part Number: ARP-234-4110

4.94 out of 5 stars ( 16 )

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Cam and Lifter kit, Pro SBC Stage 1 Hyd. Roller Cam, 204/214 Dur., 112 LSA + 1 Adv, .450/.450 1.5 Ratio, Idle-5800 Range, '87-02 Gen 1 Roller Block

Part Number: SUM-K8800

5.0 out of 5 stars ( 1 )

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Rocker Arms, Fits 7/16 in. Stud, Full Roller, Steel, 1.70 Ratio, Chevy, Big Block, Set of 16

Part Number: CCA-1820-16

4.27 out of 5 stars ( 11 )

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