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

Valve Spring Kit, Platinum, Dual, Standard, Steel Retainer, 0.045 in. Thick, 377 lbs./in., Factory Valve Guides, Kit

Part Number: BTC-SK001S0545BB

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Windage Tray, Aluminum, 4.00 in. Stroke, Front Sump, Chevy, LSX, Each

Part Number: IRP-EGM-243

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Crankshaft Pulleys, Holley, Replacement, LS Serpentine, 3-bolt, 6-groove, Steel, Black, for Holley Mid-Mount Accessory Drive, Chevy, 5.7-6.2L, Each

Part Number: HLY-97-159

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Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 58 Tooth Reluctor, +29cc Dish Pistons, Each

Part Number: HPE-SP36-G4-B

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Estimated Ship Date: Jan 5, 2026 if ordered today

• Core Charge $410.00
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Engine Dipstick, Braided Stainless Steel, Tumble Polished, Chevy, Pontiac, LS, Each

Part Number: SUM-122208

3.88 out of 5 stars ( 8 )

Estimated Ship Date: Today

Camshaft, Big Daddy Rattler, LS-Series, Hydraulic/OE Roller, 3 Bolt, Street/Strip, Lopey Idle, 290/297 Duration, 0.625 in. Lift, 103 Centerline, Each

Part Number: HRS-198135-09

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Camshaft, Hydraulic Roller Tappet, Duration at .050 in. 196/201, Lift .467/.479, Chevy, LS1, LQ9, Each

Part Number: NAL-12561721

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Harmonic Balancer, Sportsman, Internal Balance, Black, Chevy, LS, Each

Part Number: PQX-2336440

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Oil Pan Baffle, Aluminum, Natural, Chevy, 5.7L LS, Each

Part Number: IRP-EGM-202

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Main Bearings, HP Series, 1/2 Groove, Standard Size, Bi Metal, Chevrolet, 5.7L, Set of 5

Part Number: KGB-MB5013HPSTDX

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Piston Rings, Performance Piston Ring Sets, Moly, 4.065 in. Bore, 1.5mm, 1.5mm, 2.5mm Thickness, V8, Set

Part Number: SLP-E-997K

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

Part Number: HLY-241-175

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Rod Bearings, HP-Series, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Large Journal, Chevy, Small Block, Set of 8

Part Number: KGB-CR807HPN010

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Pro LS 4340 Piston and Rod Kit, 347 Cid., 3.903 bore, 3.622 stroke, 6.125 rod, 7cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR36L9037

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Camshaft, BTR, Centrifugal Supercharged Stage 2, 217 int. Duration, 0.619 in./0.617 in. Lift, 113, 3-Bolt, 4.8L, 5.3L, 6.0L, 6.2L, Gen III/IV LS, Each

Part Number: BTC-S0397

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Main Bearings, Bi-Metal, Silicon Aluminum, 0.010 in. Crankshaft Undersize, GM Gen III/IV LS, Set of 5

Part Number: SUM-172310

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Piston Rings, Moly, 4.030 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: SLP-E-921K30

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Pro LS 4340 Piston and Rod Kit, 347 Cid., 3.903 bore, 3.622 stroke, 6.125 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR36L9033

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Oil Pickup, Bolt-In, Street/Strip Pan Style, 6 in. Pan Depth, Rear Sump, Chevy, LS, Each

Part Number: SUM-G3625

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Today

Valve Cover Fasteners, Holley EFI, Tall LS Valve Cover Bolts, Polished, Aluminum, Hex Head, 6mm x 1.0 Thread, Hardware, 8-piece, Chevy, 4.8-7.0L, Set

Part Number: HLY-561-134

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Valve Covers, Aluminum LS, Center and Perimeter Bolt, Tall, Finned, Cast Aluminum, Orange Gloss, Two-Piece, Chevy, LS, 4.8-7.0L, Pair

Part Number: HLY-241-183

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Accessory Drive Bracket Spacer Kits, Aluminum, Natural Finish, Short Alignment, Chevy, Small Block LS, Each

Part Number: HLY-21-1

4.25 out of 5 stars ( 8 )

Estimated Ship Date: Today

Valve Cover, Valve Cover with Integral Angled Coil Mounts, Valve Cover with Integral Angled Coil Mounts, Tall, Rd Wrinkle Finish,Pair

Part Number: GRN-640363

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Harmonic Balancer Hub, Replacement, Internal Engine Balance, Steel, Black, Camaro/Firebird, 5.7L LS, Each

Part Number: ATI-916031

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Rocker Arm Trunnion Upgrade Kit, Trunnion Upgrade, Chevy, LS, Set of 16

Part Number: SME-143002

4.71 out of 5 stars ( 58 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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