CHEVROLET R30 Engines & Components

Proform Harmonic Balancer Covers 141-725

Harmonic Balancer Cover, Aluminum, Chrome, 6 3/4 in. Diameter, Degree Markings, Chevy, Small Block, Each

Part Number: PRO-141-725

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Continental OE Technology Series V-belts 15581

Belt, Elite, V-Belt, 7/16 in. Width, 57.50 in. Length, Each

Part Number: CEL-15581

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Dayco High Performance V-Belts 15575

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026

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Proform Harmonic Balancer Covers 141-727

Harmonic Balancer Cover, Aluminum, Black, 6 3/4 in. Diameter, Degree Markings, Chevy, Small Block, Each

Part Number: PRO-141-727

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Engine Works Cam Bearing Sets SH-290S

Cam Bearings, Steel Backed Babbitt, Chevy, Small Block, Kit

Part Number: EW1-SH-290S

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Pioneer Timing Covers 500350S

Timing Cover, Steel, Natural, Chevrolet, Small Block, Each

Part Number: PIO-500350S

2.0 out of 5 stars ( 1 )

Estimated Ship Date: May 14, 2026 if ordered today

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Estimated Ship Date: May 14, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

ATP Timing Covers 103120

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026

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Sealed Power Main Bearing Sets 4663M 40

Main Bearings, .040 in. Over Size, Tri Metal, 1/2 Groove, Chevrolet, Small Block, Set of 5

Part Number: SLP-4663M40

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

King SI-Series Main Bearings MB 752SI

Main Bearing Set

Part Number: KGB-MB752SI

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jul 21, 2026 if ordered today

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Estimated Ship Date: Jul 21, 2026 if ordered today

Enginetech Rod Bearings BB619J020

Engine Connecting Rod Bearing 58-07 BUI/CHV/GM/GMC/OLD/PON 4.3L/5.7L/6.0L/6.5L/6.6L/6.7L/7.0L/7.4L/8.1L/L

Part Number: EGN-BB619J020

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

ACDelco V-Ribbed Accessory Belts 88934310

Accessory Belt, V-ribbed, Serpentine, 37.98 in. Length, 0.410 in. Width, Each

Part Number: ADO-15380

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Mahle Original Premium Piston Ring Sets 40451.060

Piston Rings, Moly, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-40451060

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Enginetech Main Bearings BC298JSTD

Engine Crankshaft Main Bearing Set 62-89 BUI/CHV/GMC/OLD/PON 3.2L/3.5L/3.8L/4.1L/4.8L

Part Number: EGN-BC298JSTD

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Cloyes Heavy-Duty Timing Sets C-3202K

Cloyes Heavy-Duty Timing Sets C-3202K

3 PIECE TIMING SET

Part Number: CLO-C-3202K

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Hastings Piston Ring Sets 139020

Piston Rings, Phosphate Coated, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: HSN-139020

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Mahle Original Premium Piston Ring Sets 40451

Piston Rings, Moly, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-40451

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

King SI-Series Main Bearings MB 752SI 010

Main Bearing Set

Part Number: KGB-MB752SI010

Not Yet Reviewed

Estimated Ship Date: Jul 22, 2026 if ordered today

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Estimated Ship Date: Jul 22, 2026 if ordered today

Enginetech Main Bearings BC296JSTD

Engine Crankshaft Main Bearing Set 67-02 BUI/CAD/CHV/GM/GMC/OLD/PON 4.3L/4.4L/4.6L/4.9L/5.0L/5.3L/5.7L

Part Number: EGN-BC296JSTD

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

Cloyes Replacement Timing Chains C168

Timing Chain, Replacement Chain Only, Heavy Duty Single Roller, Chevy, Big Block, Each

Part Number: CLO-C168

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Dorman Expansion Plugs 550-034

Engine Expansion Plugs, Steel, 3.00 in. Diameter, Chevy, GMC, Set of 10

Part Number: RNB-550-034

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Hastings Piston Ring Sets 139100

Piston Rings, Phosphate Coated, 4.100 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: HSN-139100

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M8569S

Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M8569S

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

Melling Timing Chain Sets 3-501S

Timing Chain and Gears, Link Belt, Steel Sprockets, Chevy, GMC, Set

Part Number: MEL-3-501S

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Continental OE Technology Series Multi-V Belts 4060560

Belt, OE Technology Series, Multi-V, Serpentine, 6-Rib, 56.00 in. Length, Each

Part Number: CEL-4060560

5.0 out of 5 stars ( 2 )

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

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Dayco Poly Rib Serpentine Belts 5060560

5 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026

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Melling Timing Chain Sets 3-507S

CHAIN-TIMING SET (3)

Part Number: MEL-3-507S

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Enginetech Piston and Ring Kits K1505(1)STD

Engine Piston Kit 67-95 BUI/CAD/CHV/GM/GMC/OLD/PON 4.3L/5.7L

Part Number: EGN-K15051STD

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Cloyes Heavy-Duty Timing Sets C-3059K

3-PIECE SET

Part Number: CLO-C-3059K

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today