2003 Chevy Silverado 2500 HD Engine Parts

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2003 Chevy Silverado 2500 HD

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2003 Chevy Silverado 2500 HD

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New Product

Enginetech |

#17300672

Enginetech SK5671 GM LS 6.0L Rear Main Seal, 1-Piece, PTFE

$33.99

/each

-21%

Powermaster |

#25519509

Powermaster 19509 XS Torque Starter, Mini, Natural, GM

Starter Size:

Mini

Flywheel/Flexplate Tooth Count:

168-tooth

Mount Type:

Bolt-On

$337.99

/each

$432.50

New Product

Enginetech |

#17300285

Enginetech ER359-8 GM LS 6.0L Rocker Arm, 8pk, 1997-2017

$144.99

/each

ICT BILLET |

#826551348

ICT Billet 551348 Fuel Injector Spacers, LS1, LS6 Intake Manifold

GTIN Code:

656729843482

$67.00

/set

New Product

Enginetech |

#17300692

Enginetech TCC293-A GM LS 6.0L Timing Cover Gasket Set, 1997-2020

$49.99

/each

Gen III/IV LS Engine ID Guide

Looking to swap the venerable LS engine into your hot rod, muscle car, or classic truck? Take a look at our detailed identification guide for Gen III/IV LS engines before you hit the salvage yard or swap meet!

Small Block and Big Block Chevy Engine Flexplate Guide

Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. We’ll help you determine the correct flexplate for your Chevy engine in this buyer’s guide.

Historic Chevy Performance Engines

Take a look at a few of the rare and wonderful Chevy engines in the Museum of American Speed!

55 Chevy Engine Build

Derek kicks off his 55 Chevy rebuild with a fresh small block.

Project Chevelle 383 Engine Tech Article

At long last, Project Chevelle gets a muscle car heart transplant in the form of a 383 from BluePrint Engines.

Chevelle 283 to a 496 BluePrint Crate Engine

In this project, you will see how Jeff repaints a garage sale 496 BluePrint crate engine and learn the importance of preparing the engine for a successful restoration.

Historic Indy Engines

To celebrate the upcoming 106th running of the Indianaplis 500, here's a look back at a few of the engines that have competed at the Brickyard over the years.

'37 Chevy Sedan

Barry's sedan makes us wonder why there aren't more Chevy street rods out there.

Project Chevelle Episode 8: 383 Engine, Part 1

In this episode, Project Chevelle takes a big step in its muscle car transformation. It's out with the little old 307 and to the dyno with our new 383 from BluePrint Engines!

Small Block Chevy in a 1953 Chevy 3600

In this Tech Tip, John advises a customer on the parts needed to slip a small block Chevy engine in his 1953 Chevy 3600.

New Product

Enginetech |

#17300728

Enginetech VCC293-A GM LS 6.0L Valve Cover Gasket, 1999-2020

$24.99

/each

New Product

Enginetech |

#17300130

Enginetech CC411 BBC 454/402 Cam Bearing Set, 1967-2007

$21.99

/each

C4 Corvette LS Swap Long Tube Headers for LS1, 5.3, 6.0, LS3

Speedway Motors |

#916C4003

C4 Corvette LS Swap Long Tube Headers for LS1, 5.3, 6.0, LS3

(6)

Header Tube Type:

Full-Length

Primary Tube Diameter:

1-3/4"

Material Type:

Steel

$387.99

/kit

New Product

Enginetech |

#17300182

Enginetech CR9016 GM LS 6.0L Cam Retainer Plate, 1997-2020

$26.99

/each

ICT BILLET |

#82651216

ICT Billet 551216-KN40 LS Gen 4 Knock Sensor Relocation Brackets

$100.00

/each

Holley |

#42512887

Holley 12-887 By Pass Style Carbureted Fuel Pressure Regulator

(7)

Regulator Style:

Return

Material Type:

Aluminum

$84.35

/each

Mobil Delvac Extreme 122454 Diesel Engine Oil, 10W-30, 4 Gallons

Mobil 1 |

#324122454

Mobil Delvac Extreme 122454 Diesel Engine Oil, 10W-30, 4 Gallons

(40)

Oil Weight:

10W30

Oil Type:

Synthetic

ZDDP Enhanced:

$107.99

/box

LS Swap Single Turbo Kit Hot Side, Universal Crossover, 67mm

Speedway Motors |

#91604123

LS Swap Single Turbo Kit Hot Side, Universal Crossover, 67mm

Turbine Housing Inlet Flange:

Turbine Housing Outlet Flange:

3 Inch V-Band

Turbocharger Style:

GT35

$1,818.99

/kit

Speedway Deluxe AN6 GM LS Swap Fuel Filter/Regulator, 58 PSI

Speedway Motors |

#91012808

Speedway Deluxe AN6 GM LS Swap Fuel Filter/Regulator, 58 PSI

(71)

Regulator Style:

Return

Material Type:

Steel

$74.99

/each

Adjustable Fuel Pressure Regulator with Gauge Kit for Carburetor

Speedway Motors |

#9100198

Adjustable Fuel Pressure Regulator with Gauge Kit for Carburetor

(10)

Regulator Style:

Non-return

Material Type:

Aluminum

$88.99

/kit

Universal LS Swap Stainless Long Tube Headers, 1-3/4-inch Primary

Speedway Motors |

#93001001

Universal LS Swap Stainless Long Tube Headers, 1-3/4-inch Primary

(3)

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Round Port

$359.99

/pair

SoloSwap® Chevy LS Mock Up Engine Swap Dummy Block Kits

Speedway Motors |

#91089660

SoloSwap® Chevy LS Mock Up Engine Swap Dummy Block Kits

(21)

Material Thickness:

.1093"

Material Type:

Steel

Finish:

Natural

as low as

$285.99

/each

Mobil 1 |

#324127918

Mobil 1 127918 ESP X4 0W40 Motor Oil, 6 Quarts

(5)

Oil Weight:

0W40

Oil Type:

Synthetic

ZDDP Enhanced:

$60.99

/box

SBC Small Block Chevy V8 Engine Crossmember Motor Mount Kit

Speedway Motors |

#91018212

SBC Small Block Chevy V8 Engine Crossmember Motor Mount Kit

(37)

Attachment Style:

Bolt-on

Mount Material:

Steel

Bushing Material:

Rubber

$140.99

/kit

Universal V8 Engine Swap Weld-In Motor Mount Kits

Speedway Motors |

#91018033

Universal V8 Engine Swap Weld-In Motor Mount Kits

(91)

Attachment Style:

Weld-on/Bolt-on

Mount Material:

Steel

Bushing Material:

Rubber

$85.99

/kit

Tight-Fit Small Block Ford Block Hugger Headers, Raw

Speedway Motors |

#9300201

Tight-Fit Small Block Ford Block Hugger Headers, Raw

(33)

Header Tube Type:

Block Hugger

Exhaust Port Shape:

Round

Flange Style:

Standard

$175.99

/pair

LS Swap Single Turbo Kit Hot Side, T56/6L80 Crossover, 78mm

Speedway Motors |

#91604128

LS Swap Single Turbo Kit Hot Side, T56/6L80 Crossover, 78mm

(1)

Turbine Housing Inlet Flange:

T4 Divided

Turbine Housing Outlet Flange:

4 Inch V-Band

Turbocharger Style:

S400

$2,029.99

/kit

Valvoline |

#7958811721

Valvoline 881172 VR1 Racing Oil, 20W50, 5 Quart Jug

(4)

Oil Weight:

20W50

Oil Type:

Conventional

ZDDP Enhanced:

Yes

$46.99

/each

Spectre Performance |

#465771

Spectre 771 Cold Air Intake Kit, Low Profile Dual Plenum Inline, 45x90

(1)

Tube O.D.:

Material Type:

Aluminum

Finish:

Polished

$442.99

/each

Flowtech 11569FLT Small Block Chevy Turbo Headers

Flowtech Exhaust |

#42511569FLT

Flowtech 11569FLT Small Block Chevy Turbo Headers

Header Tube Type:

Turbo

Primary Tube Diameter:

1-3/4"

Material Type:

Stainless Steel

$239.95

/kit

Speedway GM LS1/LS6 Engine Weld-In Motor Mounts

Speedway Motors |

#7204501

Speedway GM LS1/LS6 Engine Weld-In Motor Mounts

(24)

Attachment Style:

Weld-on/Bolt-on

Mount Material:

Steel

Bushing Material:

Polyurethane

$161.99

/pair

Universal Baffled Oil Catch Can Kit, 10 OZ. Capacity w/ Dipstick

Speedway Motors |

#91008312

Universal Baffled Oil Catch Can Kit, 10 OZ. Capacity w/ Dipstick

(1)

Diameter:

2.68"

Height:

4.27"

Fitting Attachment 1:

Hose barb

$69.99

/each

$275 Shipping

ATK Engines |

#35020256

ATK 813P Toyota 22RE 125HP Crate Engine

Crate Engine Type:

Long Block

Compression Ratio:

9.0:1

Engine Displacement:

2.4 liters

$2,999.99

/each

SoloSwap® Small Block Chevy Mock Up Engine Swap Dummy Block Kits

Speedway Motors |

#91089662

SoloSwap® Small Block Chevy Mock Up Engine Swap Dummy Block Kits

(19)

Material Thickness:

.100"

Material Type:

Steel

Finish:

Bare

as low as

$273.99

/each

Speedway 429/460 BBF Big Block Ford Exhaust Header Kit

Speedway Motors |

#930FO460

Speedway 429/460 BBF Big Block Ford Exhaust Header Kit

(29)

Header Tube Type:

Roadster

Exhaust Port Shape:

Oval

Flange Style:

Standard

$263.99

/each

Speedway Motors |

#91012807

LS1 Fuel Filter/Fuel Regulator Only

(12)

Regulator Style:

Return

Material Type:

Aluminum

$35.99

/each

-5%

Dakota Digital |

#365130070

Dakota Digital 130070 Oil Pressure Adapter

(2)

Material Type:

Brass

Thread Pitch:

1/8" NPT

Finish:

Natural

$23.75

/each

$25.00

Flowtech 11576FLT Shorty Headers, GM LS Universal, Polished

Flowtech Exhaust |

#42511576FLT

Flowtech 11576FLT Shorty Headers, GM LS Universal, Polished

(6)

Header Tube Type:

Shorty

Exhaust Port Shape:

Round

Flange Style:

Standard

$164.95

/each

PennGrade |

#633711901

PennGrade Motor Oil 71190 Motor Oil, 20W50, Semi-Syn, 5 qt Qty 1

(1)

Oil Weight:

20W50

Oil Type:

Synthetic Blend

ZDDP Enhanced:

Yes

$39.99

/each

Portable 1500 lbs. Steel Portable Engine Stand

Speedway Motors |

#91081002

Portable 1500 lbs. Steel Portable Engine Stand

(17)

Material Type:

Steel

Finish:

Powder Coated

Color:

Red

$175.99

/each

Holley |

#9109636

Holley 12-804 Adjustable Fuel Pressure Regulator w/0-15 PSI Gauge

(4)

Regulator Style:

Return

Material Type:

Aluminum

$132.80

/kit

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2003 Chevy Silverado 2500 HD Engine Parts

Subcategory

Part

Brand

Transmission Family

Availability

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Price

Customer Rating

Products

Enginetech SK5671 GM LS 6.0L Rear Main Seal, 1-Piece, PTFE

Powermaster 19509 XS Torque Starter, Mini, Natural, GM

Enginetech ER359-8 GM LS 6.0L Rocker Arm, 8pk, 1997-2017

ICT Billet 551348 Fuel Injector Spacers, LS1, LS6 Intake Manifold

Enginetech TCC293-A GM LS 6.0L Timing Cover Gasket Set, 1997-2020

Related Articles

Enginetech VCC293-A GM LS 6.0L Valve Cover Gasket, 1999-2020

Enginetech CC411 BBC 454/402 Cam Bearing Set, 1967-2007

C4 Corvette LS Swap Long Tube Headers for LS1, 5.3, 6.0, LS3

Enginetech CR9016 GM LS 6.0L Cam Retainer Plate, 1997-2020

ICT Billet 551216-KN40 LS Gen 4 Knock Sensor Relocation Brackets

Holley 12-887 By Pass Style Carbureted Fuel Pressure Regulator

Mobil Delvac Extreme 122454 Diesel Engine Oil, 10W-30, 4 Gallons

LS Swap Single Turbo Kit Hot Side, Universal Crossover, 67mm

Speedway Deluxe AN6 GM LS Swap Fuel Filter/Regulator, 58 PSI

Adjustable Fuel Pressure Regulator with Gauge Kit for Carburetor

Universal LS Swap Stainless Long Tube Headers, 1-3/4-inch Primary

SoloSwap® Chevy LS Mock Up Engine Swap Dummy Block Kits

Mobil 1 127918 ESP X4 0W40 Motor Oil, 6 Quarts

SBC Small Block Chevy V8 Engine Crossmember Motor Mount Kit

Universal V8 Engine Swap Weld-In Motor Mount Kits

Tight-Fit Small Block Ford Block Hugger Headers, Raw

LS Swap Single Turbo Kit Hot Side, T56/6L80 Crossover, 78mm

Valvoline 881172 VR1 Racing Oil, 20W50, 5 Quart Jug

Spectre 771 Cold Air Intake Kit, Low Profile Dual Plenum Inline, 45x90

Flowtech 11569FLT Small Block Chevy Turbo Headers

Speedway GM LS1/LS6 Engine Weld-In Motor Mounts

Universal Baffled Oil Catch Can Kit, 10 OZ. Capacity w/ Dipstick

ATK 813P Toyota 22RE 125HP Crate Engine

SoloSwap® Small Block Chevy Mock Up Engine Swap Dummy Block Kits

Speedway 429/460 BBF Big Block Ford Exhaust Header Kit

LS1 Fuel Filter/Fuel Regulator Only

Dakota Digital 130070 Oil Pressure Adapter

Flowtech 11576FLT Shorty Headers, GM LS Universal, Polished

PennGrade Motor Oil 71190 Motor Oil, 20W50, Semi-Syn, 5 qt Qty 1

Portable 1500 lbs. Steel Portable Engine Stand

Holley 12-804 Adjustable Fuel Pressure Regulator w/0-15 PSI Gauge