CHEVROLET Chevy small block Gen III/IV (LS-based engines) Engines & Components

Pro LS 4340 Rotating Assembly, 416 Cid., 4.070 bore, 4.000 stroke, 58x, 6.125 rod, 6cc dish, 11.5:1 @ 65cc, 10.9:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58400706

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

Oil Pans, Retrofit, LS Engine Swap, Rear Sump, Wet Style, 5.6 Quarts, Aluminum, Natural, Buick, Chevy, Ford, GMC, Mercury, Oldsmobile, Pontiac, Each

Part Number: HLY-302-5

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

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Valve Springs, Single, Beehive, 1.260 in. O.D., 285 lbs./in. Spring Rate, 1.150 in. Coil Bind Height, Set of 16

Part Number: BTC-SP011-16

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 8/25/2025

Timing Chain and Gears, Single Roller, Steel Sprockets, Chevy, GMC, Small Block LS, Set

Part Number: MEL-3-3SRH60SA

3.95 out of 5 stars ( 21 )

Estimated Ship Date: Monday 8/25/2025

Summit Chevy LS 4340 Forged Steel Crankshaft, 3.622 stroke, 24X Reluctor, Gun-drilled and Lightened, Nitride Hardened, Narrowed Rod Bearings Req.

Part Number: SUM-180LS362224

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

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Cylinder Head, GenX® 260, CNC Competition Ported, Assembled, 70cc CNC Chambers, 450 Lb. Springs, GM LSX, Each

Part Number: TFS-32710002-C01

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

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Camshaft, BTR LS3 Stage 4 V2, 233 int./25X exh. Duration, 0.636 in./0.636 in. Lift, 111 LSA, 3-Bolt, 6.2L, Each

Part Number: BTC-BTRLS3STAGE4

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

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Piston Rings, Plasma-moly, 4.065 in. Bore, 1.5mm, 1.5mm, 2.5mm Thickness, 8-Cylinder, Set

Part Number: MAH-42082CP

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

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Cam Bearings, High Performance, Bi-metal, Chill Cast Micro Babbitt, Fluoropolymer Coated, Chevy, Small Block LS, Kit

Part Number: DUR-CHP-25T

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 8/25/2025

Stage 4 Pro LS Cam, Extra Valve Clearance Version, 234/248 113.5 +3.5 .625/.605 Lift, Great Power, 3-bolt, 4.8-7.0L , Vortec LS1 LS2 LS6 LS7 LQ9 LS9

Part Number: SUM-8711R1

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

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Main Bearings, SI-Series, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminum, Chevy, 4.8, 5.3L, Set of 5

Part Number: KGB-MB5293SI

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 8/25/2025

Stage 1 Pro LS Ghost Cam. 222/234 115+3, .600/.575 Lift, Ultimate Stealth Cam, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0, Vortec Truck LS1 LS3 LS7 LS9 LQ4 LQ9 LM7

Part Number: SUM-8715R1

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

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Pro LS 2618 Forged Piston, 4.000 bore, 1.326 C.H., 2cc Flat, Std. Stroke, Full Float Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.0L LY6 LQ4 LQ9, Set of 8

Part Number: SUM-3269434000-2

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

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Chevy LS 408 Boosted/NOS Short Block 58 Tooth +10cc Dish

Part Number: HPE-SP26-B

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

• Core Charge $410.00
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Lifters, Hydraulic Roller, 0.842 in. O.D., Horizontal Link Bars, Chevrolet, Set of 16

Part Number: CXM-J-2126LSR

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

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ENGINE FASTENER, BTR ROD BOLT, GEN 4, LIKE 11570662 - BTR70662

Part Number: BTC-BTR70662

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 8/25/2025

Oil Catch Can, CCS, 7 oz., Oil Separator, Recirculating, Aluminum, Black, Round, Buick, Chevy, Cadillac, Pontiac, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, Kit

Part Number: IRP-CCS-GM-101

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

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Main Bearings, Race Series, Tri-Metal, 3/4 Groove, Standard Size, Chevrolet, LS, Set of 5

Part Number: PEB-5M7298H-STD

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

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Pro LS 4340 Rotating Assembly, 383 Cid., 3.903 bore, 4.000 stroke, 24X, 6.125 rod, 5cc dish, 10.9:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R24409035

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

Piston Wrist Pins, H-13 Tool Steel, 0.927 in. Diameter, 2.250 in. Length, 0.215 in. Wall Thickness, 135 grams, Set of 8

Part Number: SUM-S719-8

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

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Pro LS 4340 Rotating Assembly, 415 Cid., 4.065 bore, 4.000 stroke, 58x, 6.125 rod, 6cc dish, 11.5:1 @ 65cc, 10.9:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58400656

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

Nano-Peened Dual Valve springs, Titanium retainers, 160 lbs. seat pressure. 425 lbs. open at .670 lift. LS1, LS6, LS2, LS3, LQ4, LQ9, L92, Kit

Part Number: TFS-2500287P

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

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Rocker Arms, Pedestal Mount, Full Roller, Aluminum, 1.7 Ratio, Chevy, LS, Set of 16

Part Number: SUM-G6980

4.05 out of 5 stars ( 22 )

Estimated Ship Date: Monday 8/25/2025

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Engine 376 c.i. GM LS Style Proseries Iron Block, GM Intake,

Part Number: MLL-S0010

Not Yet Reviewed

Estimated Ship Date: Oct 20, 2025 if ordered today

• Drop Ship
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• Special Order

Engine block coolant and oil plug kit, Threaded Engine Block Oil/Coolant passage Plugs, Brass/Steel, Oil Plug and barbell, Chevy, GM LS GenIII/IV, Kit

Part Number: SUM-G1584

4.72 out of 5 stars ( 29 )

Estimated Ship Date: Monday 8/25/2025