1978 GMC G25 Engine Parts

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1978 GMC G25

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1978 GMC G25

Products

-16%

Speedhut |

#140092102R

Speedhut R2-OP2-REV 2-1/16" Oil Pressure Gauge 0-60 psi w/Warning

Gauge Diameter:

2-1/16"

Shape:

Round

Gauge Series:

Analog

$195.97

/each

$235.17

-16%

Speedhut |

#140092107R

Speedhut R2-OP7-REV 2-1/16" Oil Pressure Gauge 0-150 w/Warning

Gauge Diameter:

2-1/16"

Shape:

Round

Gauge Series:

Analog

$195.97

/each

$235.17

-16%

Speedhut |

#140092111L

Speedhut L2-OP1-LEG 2-1/16" Oil Pressure Gauge 0-30 psi

Gauge Diameter:

2-1/16"

Shape:

Round

Gauge Series:

Analog

$183.94

/each

$220.73

-16%

Speedhut |

#140092113A

Speedhut L2-OP3-ATQ 2-1/16" Oil Pressure Gauge 0-100 PSI, Antique

Gauge Diameter:

2-1/16"

Shape:

Round

Gauge Series:

Analog

$183.94

/each

$220.73

-16%

Speedhut |

#140092117L

Speedhut L2-OP7-LEG 2-1/16" Oil Pressure Gauge 0-150 psi

Gauge Diameter:

2-1/16"

Shape:

Round

Gauge Series:

Analog

$183.94

/each

$220.73

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.

-16%

Speedhut |

#140092501R

Speedhut R25-OP1-REV 2-5/8" Oil Pressure Gauge 0-30 psi w/Warning

Gauge Diameter:

2-5/8"

Shape:

Round

Gauge Series:

Analog

$210.20

/each

$252.24

-16%

Speedhut |

#140092502R

Speedhut R25-OP2-REV 2-5/8" Oil Pressure Gauge 0-60 psi w/Warning

Gauge Diameter:

2-5/8"

Shape:

Round

Gauge Series:

Analog

$210.20

/each

$252.24

-16%

Speedhut |

#140092504R

Speedhut R25-OP4-REV 2-5/8" Oil Pressure Gauge 0-7.0 w/Warning

Gauge Diameter:

2-5/8"

Shape:

Round

Gauge Series:

Analog

$210.20

/each

$252.24

-16%

Speedhut |

#140092114A

Speedhut L2-OP4-ATQ 2-1/16" Oil Pressure Gauge, 0-150 PSI

Gauge Diameter:

2-1/16"

Shape:

Round

Gauge Series:

Analog

$183.94

/each

$220.73

-16%

Speedhut |

#140092114L

Speedhut L2-OP4-LEG 2-1/16" Oil Pressure Gauge 0-7.0 bar

Gauge Diameter:

2-1/16"

Shape:

Round

Gauge Series:

Analog

$183.94

/each

$220.73

-16%

Speedhut |

#140092116L

Speedhut L2-OP6-LEG 2-1/16" Oil Pressure Gauge 0-100 90 Degree

Gauge Diameter:

2-1/16"

Shape:

Round

Gauge Series:

Analog

$183.94

/each

$220.73

FiTech |

#52179101

FiTech 79101 LS Kit W/ 70001 Plus Inline Fuel Pump And Coil Pack

Injection Style:

Multi-port

Injector Size:

36 lbs./hr.

Max Horsepower Rating:

500

$2,347.99

/kit

-7%

Earls |

#425AT818010ERL

Earls AT818010ERL 180 Degree -10 AN Female to -10 AN Swivel Seal Hose

Fitting Hose Size:

-10 AN

Fitting End A:

-10 AN Female

Fitting End B:

-10 AN Hose

$59.89

/each

$64.95

Holley |

#425300630BK

Holley 300-630BK LS Lo-Ram 105mm Throttle Body Adapter, Black

Bore Size:

105 mm

Color:

Black

$519.95

/each

-8%

Earls |

#425400ERL

Earls 400ERL UltraPro Oil Cooler Mounting Brackets, Wide Coolers

GTIN Code:

090127039977

$93.75

/each

$101.95

-7%

Earls |

#425609004ERL

Earls 609004ERL Speed-Seal Hose End, -4 AN, 90 Degree, Adjustable

Fitting Hose Size:

-4 AN

Fitting End A:

-4 AN Female

Fitting End B:

-4 AN Hose

$46.55

/each

$50.36

-7%

Earls |

#425989545ERL

Earls 989545ERL -3 AN to 10mm x 1.0 IFF Tubing Adapter, Zinc Plated

Fitting End A:

-3 AN Male

Fitting End B:

10MM X 1.0 I.F. Female

Material Type:

Steel

$11.93

/each

$12.90

$200 Off

Holley |

#4255501011

Holley 550-1011 Terminator X Max Stealth 4150 EFI wTrans Control

Injection Style:

Throttle Body

Injector Size:

100 lb/hr @ 58.5 PSI

Max Horsepower Rating:

650

$2,499.95

/each

$2,699.95

-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

$175 Off

Holley Sniper |

#425550842

Holley Sniper 550-842 EFI Stealth 4500, Black Ceramic Finish

Injection Style:

Throttle Body

Injector Size:

100 lb/hr @ 58.5 PSI

Max Horsepower Rating:

350

$2,299.95

/kit

$2,474.95

-7%

Earls |

#425AT809006ERL

Earls AT809006ERL 90 Degree -6 AN Female to -6 AN Swivel Low Profile

Fitting Hose Size:

-6 AN

Fitting End A:

-6 AN Female

Fitting End B:

-6 AN Hose

$51.95

/each

$56.19

-53%

Fragola |

#62020221

Fragola 209004-BL Series 8000 Push-Lite Hose End, 90 Deg, -4 AN

Fitting Hose Size:

-4 AN

Fitting End A:

-4 AN Female

Fitting End B:

-4 AN Hose

$15.99

/each

$34.15

-16%

PRW 4120453 Valve Cover Oil Filler Cap, Universal, Billet

PRW Power |

#5754120453

PRW 4120453 Valve Cover Oil Filler Cap, Universal, Billet

(2)

Attachment Style:

Twist-in

Style:

Plain

Shape:

Round

$27.47

/each

$32.96

45 Degree Socketless Push-On Hose End, Nickel, -6 AN

Speedway Motors |

#6201522

45 Degree Socketless Push-On Hose End, Nickel, -6 AN

Fitting Hose Size:

-6 AN

Fitting End A:

-6 AN Female

Fitting End B:

-6 AN Hose

$18.99

/each

-20%

Remflex Gaskets |

#63918010

Remflex Gaskets 18-010 Turbo "Tial" 38MM Wastegate Gasket

Sold in Quantity:

Set

GTIN Code:

878891002676

$15.11

/each

$18.89

Anodized Aluminum -10 AN Flare Plug Fitting, Blue

Speedway Motors |

#6176021

Anodized Aluminum -10 AN Flare Plug Fitting, Blue

Fitting End A:

-10 AN

Fitting Attachment 1:

Male AN

Material Type:

Aluminum

$5.99

/each

-75%

Aeroquip |

#6171513

Aeroquip FCE1513 Nickel Straight Push-On Hose Socketless Fitting -8 AN

Fitting Hose Size:

-8 AN

Fitting End A:

-8 AN Female

Fitting End B:

-8 AN Hose

$16.99

/each

$69.84

-20%

Vibrant |

#32116901

Vibrant 16901 Manual Boost Controller

Sold in Quantity:

Each

Adjustable:

Yes

$107.99

/each

$135.99

Lokar |

#491XED5011

Lokar XED-5011 Midnight Series Flex. Engine Dipstick, Big Block Ford

Color:

Black

Sold in Quantity:

Each

$113.95

/each

P-Ayr 3126 Plastic Foam Ardun OHV Mock Up Head/Valve Covers

P-Ayr Products |

#91087311

P-Ayr 3126 Plastic Foam Ardun OHV Mock Up Head/Valve Covers

(1)

$400.99

/set

Fuel Injection Enterprises |

#500205XB

Fuel Injection Enterprises 205XB Small 205M Mallory Cap, Black

Cap Type:

HEI / Male

Sold in Quantity:

Each

$69.97

/each

Vapor Trapper |

#43900003

Shop48 Vapor Trapper Billet Charcoal Canister (Canister Only)

Sold in Quantity:

Each

$319.99

/kit

-7%

Holley |

#425120152

Holley 120-152 Round Black Finned Air Cleaner, Paper Filter, 14 x 3

Shape:

Round

Overall Diameter:

14"

Filter Material:

White paper

$233.95

/each

$253.95

-7%

Holley |

#42512848

Holley 12-848 Dominator Billet EFI By-Pass Fuel Pressure Regulator

(4)

Fuel Type:

Gasoline

Material Type:

Aluminum

$289.95

/each

$313.95

-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

Spyder 14" Drag Race and Pavement, Oval Track Air Filter

Spyder Filters |

#5922400

Spyder 14" Drag Race and Pavement, Oval Track Air Filter

Overall Diameter:

14"

Sold in Quantity:

Each

$66.95

/each

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1978 GMC G25 Engine Parts

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Transmission Family

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Products

Speedhut R2-OP2-REV 2-1/16" Oil Pressure Gauge 0-60 psi w/Warning

Speedhut R2-OP7-REV 2-1/16" Oil Pressure Gauge 0-150 w/Warning

Speedhut L2-OP1-LEG 2-1/16" Oil Pressure Gauge 0-30 psi

Speedhut L2-OP3-ATQ 2-1/16" Oil Pressure Gauge 0-100 PSI, Antique

Speedhut L2-OP7-LEG 2-1/16" Oil Pressure Gauge 0-150 psi

Related Articles

Speedhut R25-OP1-REV 2-5/8" Oil Pressure Gauge 0-30 psi w/Warning

Speedhut R25-OP2-REV 2-5/8" Oil Pressure Gauge 0-60 psi w/Warning

Speedhut R25-OP4-REV 2-5/8" Oil Pressure Gauge 0-7.0 w/Warning

Speedhut L2-OP4-ATQ 2-1/16" Oil Pressure Gauge, 0-150 PSI

Speedhut L2-OP4-LEG 2-1/16" Oil Pressure Gauge 0-7.0 bar

Speedhut L2-OP6-LEG 2-1/16" Oil Pressure Gauge 0-100 90 Degree

FiTech 79101 LS Kit W/ 70001 Plus Inline Fuel Pump And Coil Pack

Earls AT818010ERL 180 Degree -10 AN Female to -10 AN Swivel Seal Hose

Holley 300-630BK LS Lo-Ram 105mm Throttle Body Adapter, Black

Earls 400ERL UltraPro Oil Cooler Mounting Brackets, Wide Coolers

Earls 609004ERL Speed-Seal Hose End, -4 AN, 90 Degree, Adjustable

Earls 989545ERL -3 AN to 10mm x 1.0 IFF Tubing Adapter, Zinc Plated

Holley 550-1011 Terminator X Max Stealth 4150 EFI wTrans Control

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

Holley Sniper 550-842 EFI Stealth 4500, Black Ceramic Finish

Earls AT809006ERL 90 Degree -6 AN Female to -6 AN Swivel Low Profile

Fragola 209004-BL Series 8000 Push-Lite Hose End, 90 Deg, -4 AN

PRW 4120453 Valve Cover Oil Filler Cap, Universal, Billet

45 Degree Socketless Push-On Hose End, Nickel, -6 AN

Remflex Gaskets 18-010 Turbo "Tial" 38MM Wastegate Gasket

Anodized Aluminum -10 AN Flare Plug Fitting, Blue

Aeroquip FCE1513 Nickel Straight Push-On Hose Socketless Fitting -8 AN

Vibrant 16901 Manual Boost Controller

Lokar XED-5011 Midnight Series Flex. Engine Dipstick, Big Block Ford

P-Ayr 3126 Plastic Foam Ardun OHV Mock Up Head/Valve Covers

Fuel Injection Enterprises 205XB Small 205M Mallory Cap, Black

Shop48 Vapor Trapper Billet Charcoal Canister (Canister Only)

Holley 120-152 Round Black Finned Air Cleaner, Paper Filter, 14 x 3

Holley 12-848 Dominator Billet EFI By-Pass Fuel Pressure Regulator

Holley 197-304 Premium Alternator, 150A, Polished

Spyder 14" Drag Race and Pavement, Oval Track Air Filter