1978 GMC G25 Engine Parts

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1978 GMC G25

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1978 GMC G25

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-7%

Earls |

#425AT100194ERL

Earls AT100194ERL Fuel Pressure Gauge Adapter -6 Male to 3/8 Inch NPT

(1)

Fitting End A:

-6 AN Male

Fitting End B:

3/8" NPT Male

Fitting End C:

1/8" NPT Female

$26.87

/each

$29.07

K&N E-3504 Lifetime Performance Air Filter, 4in Tall, Oval

K&N |

#465E3504

K&N E-3504 Lifetime Performance Air Filter, 4in Tall, Oval

(2)

Material Type:

Cotton Gauze

Shape:

Oval

$104.99

/each

$229 Off

Holley |

#425550601N

Holley EFI 550-601N HP EFI ECU And Harness Kits

Ignition Type:

Universal

Injector Connector:

GM TPI

Sold in Quantity:

Kit

$2,999.95

/each

$3,228.95

$242 Off

Holley |

#425550602N

Holley 550-602N HP EFI ECU & Harness Kit, LS1/LS6, NTK O2

Ignition Type:

Factory GM

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

USB/CAN Tuning Cable

$3,099.95

/each

$3,341.95

-7%

Earls |

#425580603ERL

Earls 580603ERL -3 AN Flare Plug Fitting, Blue Anodized, Pair

Fitting End A:

-3 AN

Fitting Attachment 1:

Male AN

Material Type:

Aluminum

$7.40

/pair

$8.01

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%

Earls |

#425591932ERL

Earls 591932ERL Brake Adapter, 7/16 Inch-24, -3 AN, Zinc Plated Steel

(3)

Fitting End A:

-3 AN Male

Fitting End B:

7/16"-24 I.F. Male

Material Type:

Steel

$22.40

/each

$24.23

-7%

Earls |

#425600103ERL

Earls 600103ERL Speed-Seal Hose End, -3 AN, Steel

(1)

Fitting Hose Size:

-3 AN

Fitting End A:

-3 AN Female

Fitting End B:

-3 AN Hose

$14.88

/each

$16.10

-7%

Earls |

#425604503ERL

Earls 604503ERL Speed-Seal Hose End, -3 AN, 45 Degree, Adjustable

Fitting Hose Size:

-3 AN

Fitting End A:

-3 AN Female

Fitting End B:

-3 AN Hose

$46.57

/each

$50.38

-8%

Earls |

#425609093ERL

Earls 609093ERL Speed-Seal Hose End, -3 AN, 90 Degree, Adjustable

Fitting Hose Size:

-3 AN

Fitting End A:

-3 AN Female

Fitting End B:

-3 AN Hose

$87.95

/each

$95.95

-6%

Earls |

#425679110ERL

Earls 679110ERL 90 Degree -10 AN Tube Hose End

Fitting Hose Size:

-10 AN

Fitting End A:

-10 AN Female

Fitting End B:

-10 AN Hose

$49.95

/each

$53.67

Mobil 1 |

#324127372

Mobil 1 127372 Supercar Synthetic Motor Oil, 5W-50, Case/6

(5)

Oil Weight:

5W50

Oil Type:

Synthetic

ZDDP Enhanced:

$63.99

/each

Bob Drake Reproductions |

#91192736

Large Ford Script Hose Clamp

Style:

Worm Gear

Sold in Quantity:

Each

$4.99

/each

Spectre 47621 Extraflow Air Filter Assembly, 3in Tall, Black, Round

Spectre Performance |

#46547621

Spectre 47621 Extraflow Air Filter Assembly, 3in Tall, Black, Round

Shape:

Round

Overall Diameter:

14"

Filter Material:

Non-Woven Synthetic

$176.99

/each

Spectre 97499 Air Intake Tube, 4 in. OD, 16.094 in. Long

Spectre Performance |

#46597499

Spectre 97499 Air Intake Tube, 4 in. OD, 16.094 in. Long

Outside Diameter:

Finish:

Polished

Overall Length:

16.094"

$244.99

/each

-7%

Earls |

#425AT803110ERL

Earls AT803110ERL 30 Degree -10 AN Ano-Tuff Swivel Seal Hose End

Fitting Hose Size:

-10 AN

Fitting End A:

-10 AN Female

Fitting End B:

-10 AN Hose

$59.89

/each

$64.95

-8%

Earls |

#425AT803112ERL

Earls AT803112ERL 30 Degree -12 AN Ano-Tuff Swivel Seal Hose End

Fitting Hose Size:

-12 AN

Fitting End A:

-12 AN Female

Fitting End B:

-12 AN Hose

$76.09

/each

$82.95

-8%

Earls |

#425AT804616ERL

Earls AT804616ERL 45 Degree -16 AN Female to -16 AN Swivel Seal Hose

Fitting Hose Size:

-16 AN

Fitting End A:

-16 AN Female

Fitting End B:

-16 AN Hose

$87.95

/each

$95.95

-7%

Earls |

#425AT809008ERL

Earls AT809008ERL 90 Degree -8 AN Female to -8 AN Swivel Low Profile

Fitting Hose Size:

-8 AN

Fitting End A:

-8 AN Female

Fitting End B:

-8 AN Hose

$51.95

/each

$56.19

-7%

Earls |

#425AT809010ERL

Earls AT809010ERL 90 Degree -10 AN Female to -10 AN Swivel Low Profile

Fitting Hose Size:

-10 AN

Fitting End A:

-10 AN Female

Fitting End B:

-10 AN Hose

$59.89

/each

$64.95

$150 Off

Holley Sniper |

#425550510BPD

Holley Sniper 550-510-BPD 4-barrel Self-Tuning EFI Conversion Kit

Injection Style:

Throttle Body

Injector Size:

100 lb/hr @ 58.5 PSI

Max Horsepower Rating:

650

$2,099.95

/kit

$2,249.95

-25%

Vibrant |

#32110807

Vibrant Performance 10807 Y-Adapter Fitting

Fitting End A:

-8 N

Fitting End B:

-6 AN

Angle:

60 degree

$33.50

/each

$44.99

Bluegrass Performance |

#40200009

Bluegrass Performance Turbocharger Trim Ring, Stainless Steel

Sold in Quantity:

Each

Material Type:

Stainless Steel

Hardware Included:

Yes

$18.95

/each

-6%

Hooker Headers |

#4258540HKR

Hooker Headers 8540HKR GM LT Turbo Exhaust Manifolds, Natural

Finish:

Natural

Collector Diameter:

3 Inch

$699.95

/kit

$749.95

-7%

Earls |

#425925106ERL

Earls 925106ERL Blue Anodized -6 AN Tee, Female Swivel on Branch

Fitting End A:

-6 AN Female

Fitting End B:

-6 AN Male

Fitting End C:

-6 AN Male

$41.81

/each

$45.23

-5%

Earls |

#425960403ERL

Earls 960403ERL -3 AN Bulkhead Tee on Run, Zinc Plated Steel

(1)

AN Size:

-3 AN

Angle:

Tee

Fitting End A:

-3 AN Male

$49.95

/each

$52.76

-7%

Earls |

#425962304ERL

Earls 962304ERL 45 Degree -4 AN Male to 1/8 Inch NPT Elbow, Zinc

(2)

Fitting End A:

-4 AN Male

Fitting End B:

1/8" NPT Male

Angle:

45 degree

$10.42

/each

$11.27

Earls |

#425962404ERL

Earls 962404ERL -4 AN Male Tee, Zinc Plated Steel

Fitting End A:

-4 AN Male

Fitting End B:

-4 AN Male

Fitting End C:

-4 AN Male

$7.95

/each

-7%

Earls |

#425963303ERL

Earls 963303ERL 90 Degree -3 AN Bulkhead Union, Zinc Plated Steel

AN Size:

-3 AN

Angle:

90 degree

Fitting End A:

-3 AN Male

$14.88

/each

$16.10

-7%

Earls |

#425963403ERL

Earls 963403ERL -3 AN Bulkhead Tee, Zinc Plated Steel

AN Size:

-3 AN

Angle:

Tee

Fitting End A:

-3 AN Male

$14.88

/each

$16.10

-7%

Earls |

#425968804ERL

Earls 968804ERL Oil Pressure Adapter 4AN to 1/8 Inch NPT

Fitting End A:

-4 AN Male

Fitting End B:

1/8" NPT Male

Angle:

Straight

$20.89

/each

$22.60

-7%

Earls |

#425813ERL

Earls 813ERL Ultrapro Oil Cooler, 13 Row Extra-Wide, Black

Overall Width:

16"

Overall Height:

3.940"

Overall Thickness:

$355.95

/each

$385.95

Ideal Heavy Duty T-Bolt Clamp, 2-5/8 Inch Minimum Clamping Diameter

Ideal Clamps |

#917263

Ideal Heavy Duty T-Bolt Clamp, 2-5/8 Inch Minimum Clamping Diameter

Style:

T-Bolt

Material Type:

Steel

Color:

Natural

$10.49

/each

-7%

Earls |

#425AT921112ERL

Earls AT921112ERL 90 Degree -12 AN Male to -12 AN Female Swivel

Fitting End A:

-12 AN Male

Fitting End B:

-12 AN Female

Angle:

90 degree

$59.89

/each

$64.95

Earls |

#425AT922104ERL

Earls AT922104ERL 90 Degree -4 AN Male to 1/8 Inch NPT Male Swivel

Fitting End A:

-4 AN Male

Fitting End B:

1/8" NPT Male

Angle:

90 degree

$41.81

/each

-28%

Powermaster |

#910181

Powermaster 181 Aluminum V-Belt Alternator Pulley, 2.80 Inch Diameter

Material Type:

Aluminum

Sold in Quantity:

Each

$33.99

/each

$47.50

Ideal Heavy Duty T-Bolt Clamp, 2-1/8 Inch Minimum Clamping Diameter

Ideal Clamps |

#917213

Ideal Heavy Duty T-Bolt Clamp, 2-1/8 Inch Minimum Clamping Diameter

(1)

Style:

T-Bolt

Material Type:

Steel

Color:

Natural

$6.99

/each

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1978 GMC G25 Engine Parts

Subcategory

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Brand

Transmission Family

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Price

Customer Rating

Products

Earls AT100194ERL Fuel Pressure Gauge Adapter -6 Male to 3/8 Inch NPT

K&N E-3504 Lifetime Performance Air Filter, 4in Tall, Oval

Holley EFI 550-601N HP EFI ECU And Harness Kits

Holley 550-602N HP EFI ECU & Harness Kit, LS1/LS6, NTK O2

Earls 580603ERL -3 AN Flare Plug Fitting, Blue Anodized, Pair

Related Articles

Earls 591932ERL Brake Adapter, 7/16 Inch-24, -3 AN, Zinc Plated Steel

Earls 600103ERL Speed-Seal Hose End, -3 AN, Steel

Earls 604503ERL Speed-Seal Hose End, -3 AN, 45 Degree, Adjustable

Earls 609093ERL Speed-Seal Hose End, -3 AN, 90 Degree, Adjustable

Earls 679110ERL 90 Degree -10 AN Tube Hose End

Mobil 1 127372 Supercar Synthetic Motor Oil, 5W-50, Case/6

Large Ford Script Hose Clamp

Spectre 47621 Extraflow Air Filter Assembly, 3in Tall, Black, Round

Spectre 97499 Air Intake Tube, 4 in. OD, 16.094 in. Long

Earls AT803110ERL 30 Degree -10 AN Ano-Tuff Swivel Seal Hose End

Earls AT803112ERL 30 Degree -12 AN Ano-Tuff Swivel Seal Hose End

Earls AT804616ERL 45 Degree -16 AN Female to -16 AN Swivel Seal Hose

Earls AT809008ERL 90 Degree -8 AN Female to -8 AN Swivel Low Profile

Earls AT809010ERL 90 Degree -10 AN Female to -10 AN Swivel Low Profile

Holley Sniper 550-510-BPD 4-barrel Self-Tuning EFI Conversion Kit

Vibrant Performance 10807 Y-Adapter Fitting

Bluegrass Performance Turbocharger Trim Ring, Stainless Steel

Hooker Headers 8540HKR GM LT Turbo Exhaust Manifolds, Natural

Earls 925106ERL Blue Anodized -6 AN Tee, Female Swivel on Branch

Earls 960403ERL -3 AN Bulkhead Tee on Run, Zinc Plated Steel

Earls 962304ERL 45 Degree -4 AN Male to 1/8 Inch NPT Elbow, Zinc

Earls 962404ERL -4 AN Male Tee, Zinc Plated Steel

Earls 963303ERL 90 Degree -3 AN Bulkhead Union, Zinc Plated Steel

Earls 963403ERL -3 AN Bulkhead Tee, Zinc Plated Steel

Earls 968804ERL Oil Pressure Adapter 4AN to 1/8 Inch NPT

Earls 813ERL Ultrapro Oil Cooler, 13 Row Extra-Wide, Black

Ideal Heavy Duty T-Bolt Clamp, 2-5/8 Inch Minimum Clamping Diameter

Earls AT921112ERL 90 Degree -12 AN Male to -12 AN Female Swivel

Earls AT922104ERL 90 Degree -4 AN Male to 1/8 Inch NPT Male Swivel

Powermaster 181 Aluminum V-Belt Alternator Pulley, 2.80 Inch Diameter

Ideal Heavy Duty T-Bolt Clamp, 2-1/8 Inch Minimum Clamping Diameter