1978 GMC G25 Engine Parts

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1978 GMC G25

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1978 GMC G25

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-6%

Holley |

#425197304

Holley 197-304 Premium Alternator, 150A, Polished

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Polished

$699.95

/each

$749.95

$113 Off

Holley Sniper |

#425550869

Holley Sniper 550-869 EFI Quadrajet, Classic Gold Finish

(1)

Injection Style:

Throttle Body

Injector Size:

100 lb/hr @ 58.5 PSI

Max Horsepower Rating:

500

$1,799.95

/kit

$1,912.95

-5%

Holley Sniper |

#425550870

Holley Sniper 550-870 Stealth 4150 EFI, Shiny

Injection Style:

Throttle Body

Injector Size:

100 lb/hr @ 58.5 PSI

Max Horsepower Rating:

650

$1,599.95

/kit

$1,687.95

-5%

Holley |

#425550903

Holley 550-903 Terminator X LS1/LS6 MPFI Kit

(2)

Ignition Type:

Factory GM

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$1,599.95

/each

$1,687.95

-5%

Holley |

#425550905

Holley 550-905 Terminator X LS2/LS3 MPFI Kit

Ignition Type:

Factory GM

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$1,599.95

/each

$1,687.95

Chris Ryan's 1978 Pontiac Trans Am

Chris Ryan's '78 Firebird is a loving tribute to that famous Trans Am from _Smokey & the Bandit_, but with style and performance that would have been nearly impossible when the Bandit was busy with Sheriff Justice.

Engine Cylinder Numbers

Assembly and Engine Start | 1968 C10 Build Episode 8

It's alive! Our 1968 C10 truck project is one step closer to our first drive. In this episode, our old truck finally comes to life with a cammed junkyard LS.

GM 10-Bolt Identification and Upgrades | 7.625, 7.5, 8.2, 8.5, 8.6

GM’s 10-bolt rear axle has been around since the 1960s, here’s how to determine if your junkyard find is worth taking home

Byron's 1975 Chevy Vega

It's not every day that you see a wild, IMSA inspired, 550 horsepower Vega. Byron Burnham went way outside the box with this one, and we love it.

Progress Update | 1968 C10 Build

We've come a long way on our '68 C10 project, but we still have a long way to go. Watch as Kevin and Joe discuss where we're at and where we're going.

Replacing a G-Body 7.5" Bolt Rear End

Learn about the power behind the G-body platform and the steps to upgrade a 7.5" bolt rear end to a 8.5" to withstand high horsepower. See how to change the differential fluid and install new gaskets.

-7%

Holley |

#425558104

Holley 558-104 Universal MPFI Main Harness

GTIN Code:

090127666746

$571.95

/each

$618.95

Powerbuilt |

#372647643

Powerbuilt 647643 Cooling System Pressure-Testing Pump Kit

GTIN Code:

028907526836

Sold in Quantity:

Kit

$129.99

/kit

K&N 56-1620 Air Filter Assembly, 1.75in Tall, Red, Round

K&N |

#465561620

K&N 56-1620 Air Filter Assembly, 1.75in Tall, Red, Round

Shape:

Round

Overall Diameter:

5.875"

Filter Material:

Cotton Gauze

$146.99

/each

Blue Straight AN10 Flare Adapter to 3/4 Inch Aluminum Pipe Fitting

Speedway Motors |

#472981613

Blue Straight AN10 Flare Adapter to 3/4 Inch Aluminum Pipe Fitting

(1)

Fitting End A:

-10 AN Male

Fitting End B:

3/4" NPT Male

Angle:

Straight

$16.99

/each

Vintage Air |

#725176022

Vintage Air 176022 Front Runner Drive System SBF Black/chrome

Groove Count:

Pulley Type:

Serpentine

Finish:

Black/Chrome

$3,031.99

/each

Vintage Air |

#725231360

Vintage Air 231360 Dual Fan Y Connector To 32111-sdf Fans

GTIN Code:

842829114113

$40.99

/each

K&N 62-1090 Crankcase Vent Air Filter, 1.5 in. Tall, 2 in. OD

K&N |

#465621090

K&N 62-1090 Crankcase Vent Air Filter, 1.5 in. Tall, 2 in. OD

(1)

GTIN Code:

024844015075

$20.99

/each

K&N 62-1100 Crankcase Vent Air Filter, 1.5 in. Tall, 2 in. OD

K&N |

#465621100

K&N 62-1100 Crankcase Vent Air Filter, 1.5 in. Tall, 2 in. OD

Sold in Quantity:

Each

Material Type:

Steel

$20.99

/each

Vintage Air |

#725176019

Vintage Air 176019 Front Runner Drive System SBF Brht/Chro

Groove Count:

Pulley Type:

Serpentine

Finish:

Polished

$3,005.99

/each

Proform |

#586141152

Proform 141-152 Slant-Edge Alternator, GM 10SI, 100 Amp, Black

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Matte

$269.95

/each

FAST 301445 GPS Module for use w/Touch Screen Dash

FAST Fuel Air Spark Technology |

#282301445

FAST 301445 GPS Module for use w/Touch Screen Dash

GTIN Code:

036584187226

$495.95

/each

FAST Fuel Air Spark Technology |

#282307019

FAST 307019 75-AMP Relay, Each

GTIN Code:

036584101536

$72.95

/each

FAST 30397-8 Precision-Flow LS3/L99/L76/LS7-Type 39lb/hr Injectors, 8

FAST Fuel Air Spark Technology |

#282303978

FAST 30397-8 Precision-Flow LS3/L99/L76/LS7-Type 39lb/hr Injectors, 8

Fuel Injector O-Rings Included:

Yes

Injector Plug Style:

USCAR/EV6/EV14

$400.95

/set

FAST 307053 GM Sensor Kit - 1 Bar MAP/14.5 PSI

FAST Fuel Air Spark Technology |

#282307053

FAST 307053 GM Sensor Kit - 1 Bar MAP/14.5 PSI

TPS Sensor Included:

Yes

Sold in Quantity:

Kit

$145.95

/each

FAST 307062 Single Pressure Sensor Kit, 0-100 PSI

FAST Fuel Air Spark Technology |

#282307062

FAST 307062 Single Pressure Sensor Kit, 0-100 PSI

GTIN Code:

036584129394

$188.95

/each

FAST 30572-8 Precision-Flow LS2-Type 57 lb/hr Injectors, Set of 8

FAST Fuel Air Spark Technology |

#282305728

FAST 30572-8 Precision-Flow LS2-Type 57 lb/hr Injectors, Set of 8

Fuel Injector O-Rings Included:

Yes

Injector Plug Style:

USCAR/EV6/EV14

$547.95

/set

Edelbrock |

#325174021

Edelbrock 174021 Fuel Pressure Regulator, EFI, 35-90psi., Red,

Regulator Style:

Return

Material Type:

Aluminum

$249.95

/each

Edelbrock |

#325174022

Edelbrock 174022 Fuel Pressure Regulator, EFI, 35-90psi., Blue

Regulator Style:

Return

Material Type:

Aluminum

$249.95

/each

Edelbrock |

#325174041

Edelbrock 174041 Fuel Pressure Regulator, Red Anodized, -6 AN

Regulator Style:

Return

Sold in Quantity:

Kit

$199.95

/each

Edelbrock |

#325174043

Edelbrock 174043 Fuel Pressure Regulator, Black Anodized

Inlet Attachment:

Female Threads

Sold in Quantity:

Kit

$199.95

/each

Mobil 1 |

#324122326

Mobil 1 122326 Advanced Full Synthetic, 10W-30, 5 Qt, Case Of 3

(1)

Oil Weight:

10W30

Oil Type:

Synthetic

ZDDP Enhanced:

$145.99

/box

Mobil 1 |

#324124184

Mobil 1 124184 Fuel Economy Motor Oil, 0W-20, 6 Quarts

Oil Weight:

0W20

Oil Type:

Synthetic

ZDDP Enhanced:

$57.99

/box

Mobil 1 |

#324124322

Mobil 1 124322 Advanced Fuel Economy Oil, 0W-16, 5 Qt, Case Of 3

Oil Weight:

0W16

Oil Type:

Synthetic

ZDDP Enhanced:

$145.99

/box

Edelbrock |

#325174131

Edelbrock 174131 Fuel Pressure Regulator, Red Anodized

Inlet Attachment:

Female Threads

Sold in Quantity:

Each

$174.95

/each

Edelbrock |

#325174132

Edelbrock 174132 Fuel Pressure Regulator, Blue Anodized

Regulator Style:

Return

Sold in Quantity:

Each

$174.95

/each

Edelbrock |

#325178010

Edelbrock 178010 EFI Fuel Pressure Regulator Rebuild Kit

Sold in Quantity:

Kit

GTIN Code:

087133932583

$50.95

/each

Edelbrock |

#325648010

Edelbrock 648010 Power Steering Adapter, -6 AN To 1/2-20

(1)

Fitting End A:

-6 AN Male

Fitting End B:

1/2" - 20 Male O-ring

Angle:

Straight

$16.95

/each

-7%

Flowmaster |

#378615001

Flowmaster 615001 Performance Air Intake Filter Refresh Kit

GTIN Code:

700042036134

$42.41

/kit

$45.88

-7%

Holley |

#425554203

Holley EFI 554-203 Boosted Sensor Kit - MAP, IAT, Temp, Pressure

MAP Sensor Included:

Yes

Sold in Quantity:

Kit

$531.95

/kit

$575.95

-7%

Holley |

#425534234

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

GTIN Code:

090127029206

$305.95

/kit

$331.95

$209 Off

Holley |

#425534302

Holley 534-302 Terminator X Stealth 4500 Throttle Body, Black

Throttle Body Style:

Throttle Body Injection (TBI)

Sold in Quantity:

Each

$2,499.95

/each

$2,708.95

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1978 GMC G25 Engine Parts

Subcategory

Part

Brand

Transmission Family

Availability

Engine Family

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Price

Customer Rating

Products

Holley 197-304 Premium Alternator, 150A, Polished

Holley Sniper 550-869 EFI Quadrajet, Classic Gold Finish

Holley Sniper 550-870 Stealth 4150 EFI, Shiny

Holley 550-903 Terminator X LS1/LS6 MPFI Kit

Holley 550-905 Terminator X LS2/LS3 MPFI Kit

Related Articles

Holley 558-104 Universal MPFI Main Harness

Powerbuilt 647643 Cooling System Pressure-Testing Pump Kit

K&N 56-1620 Air Filter Assembly, 1.75in Tall, Red, Round

Blue Straight AN10 Flare Adapter to 3/4 Inch Aluminum Pipe Fitting

Vintage Air 176022 Front Runner Drive System SBF Black/chrome

Vintage Air 231360 Dual Fan Y Connector To 32111-sdf Fans

K&N 62-1090 Crankcase Vent Air Filter, 1.5 in. Tall, 2 in. OD

K&N 62-1100 Crankcase Vent Air Filter, 1.5 in. Tall, 2 in. OD

Vintage Air 176019 Front Runner Drive System SBF Brht/Chro

Proform 141-152 Slant-Edge Alternator, GM 10SI, 100 Amp, Black

FAST 301445 GPS Module for use w/Touch Screen Dash

FAST 307019 75-AMP Relay, Each

FAST 30397-8 Precision-Flow LS3/L99/L76/LS7-Type 39lb/hr Injectors, 8

FAST 307053 GM Sensor Kit - 1 Bar MAP/14.5 PSI

FAST 307062 Single Pressure Sensor Kit, 0-100 PSI

FAST 30572-8 Precision-Flow LS2-Type 57 lb/hr Injectors, Set of 8

Edelbrock 174021 Fuel Pressure Regulator, EFI, 35-90psi., Red,

Edelbrock 174022 Fuel Pressure Regulator, EFI, 35-90psi., Blue

Edelbrock 174041 Fuel Pressure Regulator, Red Anodized, -6 AN

Edelbrock 174043 Fuel Pressure Regulator, Black Anodized

Mobil 1 122326 Advanced Full Synthetic, 10W-30, 5 Qt, Case Of 3

Mobil 1 124184 Fuel Economy Motor Oil, 0W-20, 6 Quarts

Mobil 1 124322 Advanced Fuel Economy Oil, 0W-16, 5 Qt, Case Of 3

Edelbrock 174131 Fuel Pressure Regulator, Red Anodized

Edelbrock 174132 Fuel Pressure Regulator, Blue Anodized

Edelbrock 178010 EFI Fuel Pressure Regulator Rebuild Kit

Edelbrock 648010 Power Steering Adapter, -6 AN To 1/2-20

Flowmaster 615001 Performance Air Intake Filter Refresh Kit

Holley EFI 554-203 Boosted Sensor Kit - MAP, IAT, Temp, Pressure

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

Holley 534-302 Terminator X Stealth 4500 Throttle Body, Black