Holley 1978 GMC K25 Parts

579 products fit your

1978 GMC K25

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1978 GMC K25

Brand

Holley

Products

-8%

Holley |

#4251204140

Holley 120-4140 4150 Drop Base Air Cleaner, 4 Inch Red Filter

Overall Diameter:

16"

Filter Material:

Cotton Gauze

$249.95

/each

$272.95

-7%

Holley |

#4251204530

Holley 120-4530 4500 Drop Base Air Cleaner, 3 Inch Red Filter

Overall Diameter:

16"

Filter Material:

Cotton Gauze

$259.95

/each

$281.95

-7%

Holley |

#4251204630

Holley 120-4630 4500 Drop Base Air Cleaner, Black, 3 Inch Filter

Overall Diameter:

16"

Filter Material:

Cotton Gauze

$259.95

/each

$281.95

-7%

Holley |

#4251204660

Holley 120-4660 4500 Drop Base Air Cleaner, Black, 6 Inch Filter

Overall Diameter:

16"

Filter Material:

Cotton Gauze

$299.95

/each

$322.95

$694 Off

Holley |

#42520181

Holley 20-181 Premium Mid-Mount Race Accessory System

Crankshaft Pulley Included:

Yes

Crankshaft Pulley Material:

Billet Aluminum

Water Pump Included:

Yes

$3,299.95

/each

$3,993.95

$275 Off

Holley |

#4255501630

Holley 550-1630 Terminator X Max Early LT, Trans Control DBW

Ignition Type:

Factory GM

Tuner Style:

Touchscreen Handheld

Throttle Style:

Drive-By-Wire

$3,549.95

/kit

$3,824.95

-6%

Holley |

#425558466

Holley 558-466 Weatherpak to GT (SS) MAP Adapter Harness

MAP Sensor Included:

Sold in Quantity:

Each

$49.95

/each

$53.15

-7%

Holley |

#42512171

Holley 12-171 In-Tank Retrofit Fuel Module w/Return, 450 LPH

Electric Fuel Pump Type:

In Tank

Free Flow Rate:

119 GPH / 450 LPH

Maximum Pressure:

60 psi

$664.95

/kit

$719.95

-7%

Holley |

#42512172

Holley 12-172 In-Tank Retrofit Fuel Module Returnless, 450 LPH

Electric Fuel Pump Type:

In Tank

Free Flow Rate:

119 GPH / 450 LPH

Maximum Pressure:

60 psi

$749.95

/kit

$806.95

-7%

Holley |

#42526139

Holley 26-139 Accelerator Pump Cover, 30cc w/ Lever and Screws

GTIN Code:

090127619759

$28.39

/each

$30.71

Holley |

#425347BK

Holley 34-7BK Black Needle & Seat Adjusting Nut & Lock Screw Kit

Adjustable:

Yes

Material Type:

Steel

Finish:

Black

$13.41

/each

Holley |

#4252641

Holley 26-41 Umbrella Check Valve

GTIN Code:

090127044186

$20.24

/each

Holley |

#42526680

Holley 26-68 Carburetor Main Jet Removal Tool

Material Type:

Steel

Sold in Quantity:

Each

$31.65

/each

-7%

Holley |

#42512824

Holley 12-824 Regulator Rebuild Kit

GTIN Code:

090127681770

$49.95

/each

$53.72

Holley |

#4252041

Holley 20-41 Ford Transmission Kickdown Extension

(2)

GTIN Code:

090127036099

$13.50

/each

-8%

Holley |

#42512827

Holley 12-827 Regulator Rebuild Kit

GTIN Code:

090127681800

$62.35

/each

$67.95

Holley |

#42520284

Holley 20-284 Billet Aluminum Throttle Return Spring Bracket

Material Type:

Aluminum

Sold in Quantity:

Each

$99.95

/each

-7%

Holley |

#42512820

Holley 12-820 Fuel Pump Check Valve Kit

GTIN Code:

090127657386

$49.95

/each

$53.72

-7%

Holley |

#42512823

Holley 12-823 Regulator Rebuild Kit

GTIN Code:

090127681763

$46.57

/each

$50.38

-8%

Holley |

#42570349

Holley 703-49 Marine Carb Renew Kits

Sold in Quantity:

Each

GTIN Code:

090127110126

$66.65

/each

$72.95

$250 Off

Holley |

#42512149

Holley 12-149 Fuel Cell EFI Pump Module Assy. VR Series, 12 Bolt

GTIN Code:

090127029688

$3,349.95

/each

$3,599.95

$157 Off

Holley |

#425121500

Holley 12-1500 VR1 Series Brushless Fuel Pump W/Controller

Electric Fuel Pump Type:

External

Free Flow Rate:

170 GPH / 644 LPH

Maximum Pressure:

130 psi

$1,699.95

/each

$1,856.95

-5%

Holley |

#42512147

Holley 12-147 Fuel Cell EFI Pump Module Assembly

Electric Fuel Pump Type:

In Tank

Free Flow Rate:

230 GPH / 871 LPH

Maximum Pressure:

87 psi

$849.95

/each

$899.95

-7%

Holley |

#42526612

Holley 26-612 Analog Style GPS Speedometer, 160 MPH Black 3-3/8"

Gauge Face Color:

Black

Sold in Quantity:

Each

$425.95

/each

$461.95

-9%

Holley |

#42526614

Holley 26-614 Analog Style Fuel Level Gauge, Black, 2-1/16 Inch

GTIN Code:

090127029893

$199.95

/each

$219.95

Holley |

#42512753

Holley 12-753 Fuel Pump Relay Kit, 30 Amp

(2)

GTIN Code:

090127437834

$181.95

/each

$738 Off

Holley |

#42520200BK

Holley 20-200BK Premium Mid-Mount Complete Accessory System, LT

Crankshaft Pulley Included:

Yes

Crankshaft Pulley Material:

Billet Aluminum

Water Pump Included:

Yes

$3,649.95

/each

$4,387.95

$905 Off

Holley |

#42520200P

Holley 20-200P Premium Mid-Mount Complete Accessory System, LT

Crankshaft Pulley Included:

Yes

Crankshaft Pulley Material:

Billet Aluminum

Water Pump Included:

Yes

$4,399.95

/each

$5,304.95

-7%

Holley |

#4251974

Holley 19-174 Remote Mount Vent Valve For EFI Tanks, 5/16 Inch

(2)

Outlet Size:

5/16"

Material Type:

Aluminum

Finish:

Machined

$31.65

/each

$34.23

-8%

Holley |

#42512757

Holley 12-757 Ultra HP Mechanical Fuel Pump Replacement Gasket Kit

GTIN Code:

090127661178

$56.79

/each

$61.95

-7%

Holley |

#42512800

Holley 12-800 80 GPH HP In-line Fuel Pump

Electric Fuel Pump Type:

External

Free Flow Rate:

80 GPH / 302 LPH

Maximum Pressure:

80 psi

$519.95

/each

$562.95

-7%

Holley |

#425534234

Holley 534-234 Fuel Rail Package, EFI, Hi-Ram 351W

GTIN Code:

090127029206

$305.95

/kit

$331.95

-7%

Holley |

#425534298

Holley 534-298 X Stealth 4150 Secondary Throttle Body, Polished

Throttle Body Style:

Throttle Body Injection (TBI)

Sold in Quantity:

Each

$1,171.95

/kit

$1,267.95

-6%

Holley |

#425199103

Holley 199-103 SD508 Sanden Style Style A/C Compressor, Black

Material Type:

Aluminum

Finish:

Black

A/C Pulley Included:

Yes

$549.95

/each

$590.95

-8%

Holley |

#42513477S

Holley 134-77S Aluminum Secondary Fuel Bowl Kit, Shiny Finish

GTIN Code:

090127665312

$111.95

/each

$121.95

-6%

Holley |

#425199105

Holley 199-105 SD508 Sanden Style Style A/C Compressor, Polished

Material Type:

Aluminum

Finish:

Polished

A/C Pulley Included:

Yes

$649.95

/each

$691.95

Showing 1 - 108 of 579 results

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Holley 1978 GMC K25 Parts

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Price

Customer Rating

Products

Holley 120-4140 4150 Drop Base Air Cleaner, 4 Inch Red Filter

Holley 120-4530 4500 Drop Base Air Cleaner, 3 Inch Red Filter

Holley 120-4630 4500 Drop Base Air Cleaner, Black, 3 Inch Filter

Holley 120-4660 4500 Drop Base Air Cleaner, Black, 6 Inch Filter

Holley 20-181 Premium Mid-Mount Race Accessory System

Holley 550-1630 Terminator X Max Early LT, Trans Control DBW

Holley 558-466 Weatherpak to GT (SS) MAP Adapter Harness

Holley 12-171 In-Tank Retrofit Fuel Module w/Return, 450 LPH

Holley 12-172 In-Tank Retrofit Fuel Module Returnless, 450 LPH

Holley 26-139 Accelerator Pump Cover, 30cc w/ Lever and Screws

Holley 34-7BK Black Needle & Seat Adjusting Nut & Lock Screw Kit

Holley 26-41 Umbrella Check Valve

Holley 26-68 Carburetor Main Jet Removal Tool

Holley 12-824 Regulator Rebuild Kit

Holley 20-41 Ford Transmission Kickdown Extension

Holley 12-827 Regulator Rebuild Kit

Holley 20-284 Billet Aluminum Throttle Return Spring Bracket

Holley 12-820 Fuel Pump Check Valve Kit

Holley 12-823 Regulator Rebuild Kit

Holley 703-49 Marine Carb Renew Kits

Holley 12-149 Fuel Cell EFI Pump Module Assy. VR Series, 12 Bolt

Holley 12-1500 VR1 Series Brushless Fuel Pump W/Controller

Holley 12-147 Fuel Cell EFI Pump Module Assembly

Holley 26-612 Analog Style GPS Speedometer, 160 MPH Black 3-3/8"

Holley 26-614 Analog Style Fuel Level Gauge, Black, 2-1/16 Inch

Holley 12-753 Fuel Pump Relay Kit, 30 Amp

Holley 20-200BK Premium Mid-Mount Complete Accessory System, LT

Holley 20-200P Premium Mid-Mount Complete Accessory System, LT

Holley 19-174 Remote Mount Vent Valve For EFI Tanks, 5/16 Inch

Holley 12-757 Ultra HP Mechanical Fuel Pump Replacement Gasket Kit

Holley 12-800 80 GPH HP In-line Fuel Pump

Holley 534-234 Fuel Rail Package, EFI, Hi-Ram 351W

Holley 534-298 X Stealth 4150 Secondary Throttle Body, Polished

Holley 199-103 SD508 Sanden Style Style A/C Compressor, Black

Holley 134-77S Aluminum Secondary Fuel Bowl Kit, Shiny Finish

Holley 199-105 SD508 Sanden Style Style A/C Compressor, Polished