1977 GMC G25 Engine Parts

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1977 GMC G25

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1977 GMC G25

Products

-7%

Holley |

#42512823

Holley 12-823 Regulator Rebuild Kit

GTIN Code:

090127681763

$46.57

/each

$50.38

-7%

Holley |

#42512824

Holley 12-824 Regulator Rebuild Kit

GTIN Code:

090127681770

$49.95

/each

$53.72

-8%

Holley |

#42512827

Holley 12-827 Regulator Rebuild Kit

GTIN Code:

090127681800

$62.35

/each

$67.95

-7%

Holley |

#42512843

Holley 12-843 HP Billet Carbureted Fuel Pressure Regulator, Adjustable

Fuel Type:

Gasoline

Material Type:

Aluminum

$233.95

/each

$253.95

-7%

Holley |

#42512845

Holley 12-845 HP Billet Carbureted By-Pass Fuel Pressure Regulator

Regulator Style:

Bypass

Material Type:

Aluminum

$289.95

/each

$313.95

GM Rally Wheels

Choosing new wheels for a GMC Chevrolet truck. This project uses Speedway Motors GM Rally Wheels and new tires to enhance the appearance of the truck.

Corvette L76 327 Engine History, Specs, and Build Ideas

The 1964 Corvette L76 327 is legendary, learn more about this storied engine and what you need to build a clone.

1967 Firebird Engine Refurbish

Follow this restoration guide as Josh breathes new life back into his Pontiac engine.

55 Chevy Engine Build

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

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.

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.

Centering a 525 Steering Gear

Steve takes us along as he centers the 525 manual steering gear he is using for his Laguna.

Replacing GM Rear End Spherical Bushings

In this budget build, a GM rear end is upgraded in order to hold 400+ HP. See how spherical bushings are replaced in a used 8.5” GM 10 bolt rear end.

Seven Decades of Speedway Motors: Carson, Craig & Clay Smith | Episode 25

For this special anniversary episode we celebrate 70 years of Speedway Motors with Carson, Craig, and Clay Smith. As the sons of "Speedy" Bill and Joyce Smith, they were there for it all as the business and the family grew up together.

-8%

Weiand |

#4257221

Weiand 7221 Hilborn Style 2x4 Air Scoop, Polished Cast Aluminum

GTIN Code:

032474722102

$449.95

/each

$489.95

-7%

Earls |

#425178006ERL

Earls 178006ERL Stat-O-Seal, 3/8 Inch Diameter, Fits -3 AN Fitting

(3)

Fitting Size 1:

3/8"

AN Size:

-3 AN

Inside Diameter:

0.375"

$8.91

/pair

$9.64

-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 |

#425AT949096ERL

Earls AT949096ERL 90 Degree -6 AN Male to 5/8-18 Inch Swivel Adapter

(1)

Fitting End A:

-6 AN Male

Fitting End B:

5/8"-18 Male Inverted Flare

Angle:

90 degree

$39.90

/each

$43.17

-7%

Earls |

#425AT981408ERL

Earls AT981408ERL -8 AN ORB Plug O-Ring Seal Port Fitting

(2)

Fitting End A:

-8 AN O-ring

Fitting Attachment 1:

Male AN

Material Type:

Aluminum

$8.93

/each

$9.66

-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

-56%

Fragola |

#61770151

Fragola 495105-BL O-Ring -10AN Hose to -8AN Port Fitting

Fitting End A:

-10 AN Male

Fitting End B:

-8 AN Male o-ring

Angle:

Straight

$12.99

/each

$29.64

-43%

Fragola |

#61770161

Fragola 495106-BL O-Ring -10AN Hose to -10AN Port Fitting

(2)

Fitting End A:

-10 AN Male

Fitting End B:

-10 AN Male O-ring

Angle:

Straight

$15.99

/each

$28.22

Outerwears |

#564258

Outerwears 10-2589 4 Inch Air Cleaner Pre Filter for R2C

(4)

Air Filter Style:

Round

Overall Diameter:

15"

Sold in Quantity:

Each

$24.10

/each

-7%

Holley |

#425112114

Holley 112-114 Throttle Body Kit, 0-80670

GTIN Code:

090127662670

$233.95

/each

$253.95

-7%

Holley |

#425112120

Holley 112-120 Throttle Body Kit, 0-80528-1

GTIN Code:

090127662731

$281.95

/each

$305.95

-7%

Holley |

#425112122

Holley 112-122 Throttle Body Kit, 0-80496-1

GTIN Code:

090127662755

$304.95

/each

$330.95

Demon 1920 Rebuild kit for 625 Street Demon carburetors

Demon Carburetion |

#4251920

Demon 1920 Rebuild kit for 625 Street Demon carburetors

(2)

GTIN Code:

792898400306

$69.75

/each

-7%

Holley |

#4251217

Holley 121-7 Discharge nozzle screw, Hollow

GTIN Code:

090127619766

$20.90

/each

$22.61

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

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

Ideal Heavy Duty T-Bolt Clamp, 3-3/8 Inch Minimum Clamping Diameter

Ideal Clamps |

#917338

Ideal Heavy Duty T-Bolt Clamp, 3-3/8 Inch Minimum Clamping Diameter

Style:

T-Bolt

Material Type:

Steel

Color:

Natural

$11.49

/each

Ideal Heavy Duty T-Bolt Clamp, 3-1/2 Inch Minimum Clamping Diameter

Ideal Clamps |

#917350

Ideal Heavy Duty T-Bolt Clamp, 3-1/2 Inch Minimum Clamping Diameter

Style:

T-Bolt

Material Type:

Steel

Color:

Natural

$11.49

/each

$210 Off

Holley |

#425550603

Holley 550-603 HP EFI ECU & Harness Kit, LS2/LS3/LS7, Bosch O2

Ignition Type:

Factory GM

Injector Connector:

USCAR (EV6)

Tuner Style:

USB/CAN Tuning Cable

$2,849.95

/each

$3,059.95

$187 Off

Holley |

#425550604

Holley 550-604 HP EFI ECU & Harness Kit, Universal, Bosch O2

Ignition Type:

Universal

Injector Connector:

Jetronic / Minitimer (EV1)

Sold in Quantity:

Kit

$2,749.95

/each

$2,936.95

-7%

Earls |

#425AT592903ERL

Earls AT592903ERL Aluminum -3 AN Flare Fitting Cap, Black, Pair

Material Type:

Aluminum

Sold in Quantity:

Pair

$11.90

/pair

$12.87

-7%

Earls |

#425AT592906ERL

Earls AT592906ERL Aluminum -6 AN Flare Fitting Cap, Black, Pair

(6)

Material Type:

Aluminum

Sold in Quantity:

Pair

$10.80

/pair

$11.68

$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

$210 Off

Holley |

#425550602

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

Ignition Type:

Factory GM

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

USB/CAN Tuning Cable

$2,849.95

/each

$3,059.95

-7%

Earls |

#425AT600136ERL

Earls AT600136ERL Straight -6 AN Nut -6 AN Hose Speed Seal Hose End

Fitting Hose Size:

-6 AN

Fitting End A:

-6 AN Female

Fitting End B:

-6 AN Hose

$33.84

/each

$36.61

$200 Off

Holley |

#425554114

Holley 554-114 Dominator EFI ECU

Ignition Type:

Universal

GTIN Code:

090127665794

Sold in Quantity:

Each

$2,499.95

/each

$2,699.95

-7%

Earls |

#425AT700111ERL

Earls AT700111ERL Super Stock Straight -10 AN Female to 5/8 Inch Barb

(1)

Fitting Hose Size:

-10 AN

Fitting End A:

-10 AN Female

Fitting End B:

-10 AN Hose

$14.59

/each

$15.78

$187 Off

Holley |

#425554119

Holley 554-119 Terminator EFI ECU

Transmission Control:

GTIN Code:

090127685556

Sold in Quantity:

Each

$2,349.95

/each

$2,536.95

-7%

Earls |

#425AT700145ERL

Earls AT700145ERL Super Stock Straight -4 AN Female to 1/4 Inch Barb

Fitting Hose Size:

-4 AN

Fitting End A:

-4 AN Female

Fitting End B:

-4 AN Hose

$10.60

/each

$11.46

-7%

Earls |

#425AT704611ERL

Earls AT704611ERL Super Stock 45 Degree -10 AN Female to 5/8 Inch Barb

Fitting Hose Size:

-10 AN

Fitting End A:

-10 AN Female

Fitting End B:

-10 AN Hose

$46.56

/each

$50.37

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1977 GMC G25 Engine Parts

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Transmission Family

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Products

Holley 12-823 Regulator Rebuild Kit

Holley 12-824 Regulator Rebuild Kit

Holley 12-827 Regulator Rebuild Kit

Holley 12-843 HP Billet Carbureted Fuel Pressure Regulator, Adjustable

Holley 12-845 HP Billet Carbureted By-Pass Fuel Pressure Regulator

Related Articles

Weiand 7221 Hilborn Style 2x4 Air Scoop, Polished Cast Aluminum

Earls 178006ERL Stat-O-Seal, 3/8 Inch Diameter, Fits -3 AN Fitting

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

Earls AT949096ERL 90 Degree -6 AN Male to 5/8-18 Inch Swivel Adapter

Earls AT981408ERL -8 AN ORB Plug O-Ring Seal Port Fitting

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

Fragola 495105-BL O-Ring -10AN Hose to -8AN Port Fitting

Fragola 495106-BL O-Ring -10AN Hose to -10AN Port Fitting

Outerwears 10-2589 4 Inch Air Cleaner Pre Filter for R2C

Holley 112-114 Throttle Body Kit, 0-80670

Holley 112-120 Throttle Body Kit, 0-80528-1

Holley 112-122 Throttle Body Kit, 0-80496-1

Demon 1920 Rebuild kit for 625 Street Demon carburetors

Holley 121-7 Discharge nozzle screw, Hollow

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

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

Ideal Heavy Duty T-Bolt Clamp, 3-3/8 Inch Minimum Clamping Diameter

Ideal Heavy Duty T-Bolt Clamp, 3-1/2 Inch Minimum Clamping Diameter

Holley 550-603 HP EFI ECU & Harness Kit, LS2/LS3/LS7, Bosch O2

Holley 550-604 HP EFI ECU & Harness Kit, Universal, Bosch O2

Earls AT592903ERL Aluminum -3 AN Flare Fitting Cap, Black, Pair

Earls AT592906ERL Aluminum -6 AN Flare Fitting Cap, Black, Pair

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

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

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

Earls AT600136ERL Straight -6 AN Nut -6 AN Hose Speed Seal Hose End

Holley 554-114 Dominator EFI ECU

Earls AT700111ERL Super Stock Straight -10 AN Female to 5/8 Inch Barb

Holley 554-119 Terminator EFI ECU

Earls AT700145ERL Super Stock Straight -4 AN Female to 1/4 Inch Barb

Earls AT704611ERL Super Stock 45 Degree -10 AN Female to 5/8 Inch Barb