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

Rocker Arm Bolts, Pro Series, M8 x 1.25mm Thread, 2.560 in. Effective Stud Length, Kit

Part Number: ARP-234-7207

4.8 out of 5 stars ( 15 )

Estimated Ship Date: Monday 8/25/2025

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Rod Bearing, H Series, .001 in Crankshaft Undersize, TM-77, Chevy, Small Block, Each

Part Number: CLE-CB663HN1

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 8/25/2025

Valve Covers, Aluminum LS, Center and Perimeter Bolt, Tall, Chevy Logo, Cast Aluminum, Polished, Two-Piece, Chevy, LS, 4.8-7.0L, Pair

Part Number: HLY-241-176

3.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 8/25/2025

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Engine 427 c.i. GM LS Style Proseries Iron Block, Fabbed Alum Intake, E Controls, BPE Pulley Kit

Part Number: MLL-PSLS4275CTFK

Not Yet Reviewed

Estimated Ship Date: Oct 21, 2025 if ordered today

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Rocker Arms, Full Roller, Shaft Mounting Style, 1.7 Ratio, Steel, Chevrolet, 5.7L, 6.0L, Kit

Part Number: BTC-S0410

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Estimated Ship Date: Monday 8/25/2025

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Valve Springs, Beehive Valve Spring Kits, Single, 0.625 in. Maximum Valve Lift, 1.285 in./1.020 in. Outer Spring O.D., Chevy, Small Block LS, Kit

Part Number: BTC-BTR-SK018

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Estimated Ship Date: Monday 8/25/2025

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Pro LS Piston and Rod Kit, 370 Cid., 4.030 bore, 3.622 stroke, 6.125 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR36L0302

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

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Cylinder Head Fasteners, Dart LS Next,12-point Head Style, Stud, Black Oxide, Kit

Part Number: ARP-234-4341

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 8/25/2025

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Connecting Rods, H-beam, Forged 4340 Steel, Magnafluxed, 6.125 in. Length Center To Center, Chevrolet, Small Block LS, Set of 8

Part Number: BTC-S0368

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

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Rod Bearings, HP-Series, Standard Size, Bi-metal, Silicon Aluminum, Large Journal, Chevy, Small Block, Set of 8

Part Number: KGB-CR807HPN

4.62 out of 5 stars ( 13 )

Estimated Ship Date: Monday 8/25/2025

CORVETTE ACCESSORY DRIVE SYSTEM, WITH A/C

Part Number: NAL-19421444

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

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Valve Springs, Beehive, Single, 1.307 in. O.D., 1.800 in. Installed height, 340 lbs./in. Rate, 1.100 in. Coil Bind Height, Set of 16

Part Number: RSC-PAC-1219-16

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

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Pro LS 2618 Forged Piston, 4.030 bore, 1.326 C.H., 12cc dish, Std. Stroke, .945 pin Press or Float, NA/Boost/Nitrous, Cathedral/Rect. 6.0L LQ4 LQ9

Part Number: SUM-326945403012

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

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Pro LS 4340 Piston and Rod Kit, 364 Cid., 4.000 bore, 3.622 stroke, 6.098 rod, 12cc dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR3600012

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

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Cylinder Head Studs, Pro Series, 12-Point Head, Chevy, LSX, Kit

Part Number: ARP-234-4319

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 8/25/2025

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Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 280/292, Lift .600/.600, Chevy GM, LS/LSX, Gen III/IV, Each

Part Number: SUM-8708-1DS

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

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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