CHEVROLET Engines & Components

Pro LS 4340 Rotating Assembly, 408 Cid., 4.030 bore, 4.000 stroke, 58x, 6.125 rod, 8cc dish, 11.1:1 @ 65cc, 10.6:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58400308

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 18, 2026 if ordered today

• Special Order

Cylinder Deactivation Delete Combo, DOD, Chevy, GMC, 6.2L, Kit

Part Number: CMB-09-0047

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Lifters, Street Series, Hydraulic Roller, Street Series, Vertical Bar, Chevy, Big Block, Set of 16

Part Number: HRS-91167

3.67 out of 5 stars ( 12 )

Estimated Ship Date: Today

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Valve Springs, Retainers, Single Springs, Steel Retainers, Locks, Single Groove, Seals, Chevy Small Block, Kit

Part Number: SUM-174001

4.87 out of 5 stars ( 30 )

Estimated Ship Date: Today

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 )

Estimated Ship Date: Today

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Cam/Lifters/Valvetrain, Hydraulic Roller Tappet, Adv. Duration 276/282, Lift .502/.510, Chevy, Small Block

Part Number: CCA-K12-423-8

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Summit Chevy LS 4340 Forged Steel Crankshaft, 3.622 stroke, 58X Reluctor, Gun-drilled and Lightened, Nitride Hardened, Narrowed Rod Bearings Req.

Part Number: SUM-180LS362258

Not Yet Reviewed

Estimated Ship Date: Today

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Cam and Lifters, Hydraulic Roller Tappet, Advertised Duration 290/298, Lift .560/.560, Chevy, Small Block, Kit

Part Number: HRS-CL111815-10

4.57 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Performance Roller Lifter Set for LS & Gen 5 LT Engines. (8 pair / Set of 16) Link Bar Style Lifters with .842" body .700" wheel)

Part Number: CXM-M-5290

Not Yet Reviewed

Estimated Ship Date: Today

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Harmonic Balancer, OEM, Internal Balance, Nodular Iron, Natural, Chevy, Small Block, Each

Part Number: SUM-161358

4.52 out of 5 stars ( 135 )

Estimated Ship Date: Today

Valve Spring Upgrade Kit, 1.300 OD Dual Springs, Retainers/Locks, Seals, All GM LS LS1, LS2, LS3, LS7, LSA, LS9, LQ4, LQ9, L92, L76, LY6

Part Number: SME-174003

4.19 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Crate Engine, Longblock, Chevy, Big Block, 496 Stroker, Aluminum Cylinder Heads, 600HP, Each

Part Number: MLL-BP4967CT

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Cylinder Head, OE-Replacement, Assembled, Cast Iron, Natural, Chevy, GMC, V8, 6.5L, Diesel, Each

Part Number: PMX-CHE855N

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Cylinder Head, DHC™ 175, Fast As Cast®, Assembled, 1.470 in. Springs, No Accessory Bolt Holes, Small Chevy, Each

Part Number: TFS-30210002

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Crankshaft, 2-Piece Seal, Internal Balance, Cast Steel, 3.480 in. Stroke, Chevy, 350, Each

Part Number: SUM-180365

4.44 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Crate Engine, GM 5.3L, LM7, 385 HP, Long Block, Internal Engine Balance, Aluminum Heads, Each

Part Number: HPE-HP97

4.93 out of 5 stars ( 15 )

Estimated Ship Date: Today

• Core Charge $285.00
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Stage 4 Pro LS Cam 238/246 113+3, .625/.605 Lift, Maximum power version, 3-bolt 5.3, 5.7, 6.0, 6.2, 7.0, LS1 LS2 LS6 LS3 LS7 LSA LQ4 LQ9 LS9 LY6 LY5

Part Number: SUM-8709R1

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Camshaft, Stage 2, LS Truck Swap Cam, High lift version, 218/227 112+2, .600/.600 Lift, 3-bolt, LS1 LS2 LS6 LS3 LQ4 LY6 LQ9 Each

Part Number: SUM-8720R1

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Harmonic Balancer, Serpentine, Internal Balance, Aluminum/Steel, Black, SFI 18.1, Chevy, Pontiac, Each

Part Number: ATI-917303

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Engine Assembly, Stage 1 Crate Engine, Truck, Long Block, 1-Piece Main Seal, Chevy, Small Block, 350, Each

Part Number: HPE-HP32

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

• Core Charge $510.00
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Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 274/274, Lift .450/.450, Chevy, Small Block, Kit

Part Number: SUM-K00172

4.24 out of 5 stars ( 33 )

Estimated Ship Date: Today

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Crate Engine, Performance, Complete Long Block, Cast Iron Heads, Hydraulic Roller Camshaft, 4-Bolt Main, Internal/External Balance, Chevy, 350, Each

Part Number: HPE-HP98C

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Mar 30, 2026 if ordered today

• Core Charge $510.00
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Pulley/Bracket Set, Serpentine, Aluminum, Clear Powdercoated, Chevy, Small Block, Short Pump, Kit

Part Number: MCH-21155

4.82 out of 5 stars ( 11 )

Estimated Ship Date: Today

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Camshaft, DOD Delete, 1-Bolt, Hydraulic Roller, GM LS Truck, Each

Part Number: NAL-12689035

4.88 out of 5 stars ( 17 )

Estimated Ship Date: Today

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Piston Rings, Moly, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-E-251K30

4.4 out of 5 stars ( 47 )

Estimated Ship Date: Today