1978 GMC C25 Engine Parts

6,419 products fit your

1978 GMC C25

Add Engine

Show Direct Fit Parts

6,419 products

Sort By:

Clear All

Fitment

1978 GMC C25

Products

Weiand |

#4258122P

Weiand 8122P Street Warrior Intake Manifold 396-427ci, Peanut Port

Intake Manifold Type:

Dual Plane

Carburetor Flange Type:

Dual: Square and Spread Bore

RPM Range:

Idle-5,500

$549.95

/each

-6%

Weiand |

#4258122

Weiand 8122 Street Warrior Intake Manifold 396-427ci Engines

Intake Manifold Type:

Dual Plane

Carburetor Flange Type:

Dual: Square and Spread Bore

RPM Range:

Idle-5,500

$374.95

/each

$402.95

$121 Off

Powermaster |

#255578068

Powermaster 578068 XS Volt Alternator, 200 Amps, Serpentine, GM

One Wire Alternator:

Yes

Alternator Amperage:

200 amp

Alternator Finish:

Powder Coated

$383.99

/each

$505.00

$143 Off

Powermaster |

#255378068

Powermaster 378068 XS Volt Alternator, 200 Amps, Serpentine, GM

One Wire Alternator:

Yes

Alternator Amperage:

200 amp

Alternator Finish:

Chrome

$451.99

/each

$595.00

$115 Off

Powermaster |

#255478068

Powermaster 478068 XS Volt Alternator, 200 Amps, Serpentine, GM

One Wire Alternator:

Yes

Alternator Amperage:

200 amp

Alternator Finish:

Natural

$377.99

/each

$492.50

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.

Historic Indy Engines

To celebrate the upcoming 106th running of the Indianaplis 500, here's a look back at a few of the engines that have competed at the Brickyard over the years.

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.

1946 Ford Sedan Delivery Engine Detail

Speedway Motors Product Manager Jeff K. talks about how to really make your engine bay stand out from the crowd with just a little patience, and some Speedway products.

Chevy L79 327 Engine I History, Specs, & Build Ideas

The 1964 Corvette L79 327 is legendary, learn more about this storied engine and what you need to build a clone.

Engine Cylinder Numbers

55 Chevy Engine Build

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

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.

LS Engine Install and SEMA Show | 1968 C10 Build Episode 5

In this episode of our '68 C10 project, we hit a couple big milestones. The engine goes in and we hit our first car show. It may be just a rolling chassis, but we're mighty proud of how far we've come.

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.

-20%

Powermaster |

#25557806

Powermaster 57806 Street Alternator, 200A, Serpentine, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

200 amp

Alternator Finish:

Powder Coated

$380.99

/each

$476.25

$156 Off

Powermaster |

#25537806

Powermaster 37806 Street Alternator, 200A, Serpentine, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

200 amp

Alternator Finish:

Chrome

$408.99

/each

$565.00

-9%

Patriot Exhaust |

#447H8054B

Patriot Exhaust H8054-B Header, 73-87 Chevy Truck BBC, Blk, 1-3/4 Inch

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$430.46

/set

$473.51

Proform |

#58666512

Proform 66512 8"" Harmonic Balancer BB Chevy 454

$111.99

/each

Edelbrock |

#3252161

Edelbrock 2161 Intake Manifold, 65-90 BBC W/Oval Port Heads

Intake Manifold Type:

Dual Plane

RPM Range:

Idle-5,500

Material Type:

Aluminum

$387.95

/each

Edelbrock |

#3252062

Edelbrock 2062 Single-Quad Intake Manifold/Carburetor Kit, Chevy

Intake Manifold Type:

Dual Plane

Carburetor Quantity:

One

Carburetor Barrels:

4-Barrel

$1,016.95

/each

Hedman Hedders |

#41869897

Hedman Hedders 69897 67-91 GM Truck Headers, Silver

Header Tube Type:

Long Tube

Exhaust Port Shape:

Oval

Primary Tube Diameter:

1-5/8"

$689.99

/set

Hedman Hedders |

#41866097

Hedman Hedders 66097 67-91 Chevy Truck Headers, HTC

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$649.99

/set

Hedman Hedders |

#41869097

Hedman Hedders 69097 67-91 Chevy Truck Headers, Uncoated

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$431.99

/set

$156 Off

Powermaster |

#25567806

Powermaster 67806 Street Alternator, 200A, Serpentine, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

200 amp

Alternator Finish:

Polished

$408.99

/each

$565.00

New Product

Enginetech |

#17300318

Enginetech ES774 BBC 454/402 Camshaft, 1970-1993

$187.84

/each

-9%

PerTronix |

#447808412

PerTronix 808412 Flame-Thrower Spark Plug Wires, 8 Cyl, GM HEI, Red

(1)

Conductor Style:

Spiral Core

Diameter:

Cap Terminal Style:

HEI / Male

$81.25

/set

$89.38

-9%

PerTronix |

#447808210

PerTronix 808210 Flame-Thrower Spark Plug Wires, 8 Cyl, GM HEI, Black

Conductor Style:

Spiral Core

Diameter:

Cap Terminal Style:

HEI / Male

$81.25

/set

$89.38

Rebate

Flowtech 11510FLT Long Tube Header, 1.5 Inch Tube Size

Flowtech Exhaust |

#42511510FLT

Flowtech 11510FLT Long Tube Header, 1.5 Inch Tube Size

(15)

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$268.95

/set

$299.95

-9%

PerTronix |

#447808311

PerTronix 808311 Flame-Thrower Spark Plug Wires, 8 Cyl, GM HEI, Blue

(1)

Conductor Style:

Spiral Core

Diameter:

Cap Terminal Style:

HEI / Male

$81.25

/set

$89.38

ICT BILLET |

#82655103

ICT BILLET 5510-KIT003EM LS Swap Engine Mount Kit, 73-87 GM Truck

Sold in Quantity:

Set

$260.00

/set

-9%

Doug's Headers |

#447D300YB

Doug's Headers D300Y-B Tri-Y Header, 1-5/8 In, 73-87 Chevy Truck, Blk

Header Tube Type:

Tri-Y

Exhaust Port Shape:

Oval

Flange Style:

Standard

$776.35

/set

$853.99

Tuff Stuff |

#91033013

Tuff Stuff 7127D 1 Wire Alternator, 100 AMP, V Groove Pulley

(17)

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Natural

$194.99

/each

-9%

Holley |

#42530220BK

Holley 302-20BK GM Gen V LT Swap Oil Pan, Black, Turbo Oil/PVC

GTIN Code:

090127140772

$574.95

/each

$633.95

-18%

Powermaster |

#25527127

Powermaster 27127 Street Alternator, 70 Amps, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

70 amp

Alternator Finish:

Polished

$183.99

/each

$225.00

Edelbrock |

#3259726

Edelbrock 9726 Valve Stem Seal, Ford FE, Set of 16

Machine Work Required:

Yes

Sold in Quantity:

Set

$75.95

/set

-18%

Powermaster |

#25547806

Powermaster 47806 Street Alternator, 200A, Serpentine, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

200 amp

Alternator Finish:

Natural

$362.99

/each

$446.25

Holley |

#42524184

Holley 241-84 BB Chevy M/T Valve Covers, Polished, Cast Aluminum

Valve Cover Height:

Stock

Valve Cover Mounting Style:

Perimeter Bolt

Material Type:

Aluminum

$224.95

/pair

-7%

Holley |

#42524185

Holley 241-85 BB Chevy M/T Valve Covers, Satin Black, Cast Aluminum

Valve Cover Height:

Stock

Valve Cover Mounting Style:

Perimeter Bolt

Material Type:

Aluminum

$311.95

/pair

$337.95

-6%

Holley |

#4253005

Holley 300-5 Carburetor Intake Manifold 396ci-502ci

Intake Manifold Type:

Single Plane

Carburetor Flange Type:

4-Barrel Square Bore

RPM Range:

4,500-8,500

$449.95

/each

$481.95

COMP Cams |

#282014188

COMP Cams 01-418-8 Xtreme Energy Hyd. Roller Camshaft, Chevy B/B

Camshaft Type:

Hydraulic Roller Tappet

RPM Range:

2200-5800

Intake Duration (.050" Lift):

230

$577.95

/each

COMP Cams |

#282014218

COMP Cams 01-421-8 Xtreme Energy Hyd. Roller Camshaft, Chevy 454

Camshaft Type:

Hydraulic Roller Tappet

RPM Range:

2500-6000

Intake Duration (.050" Lift):

236

$577.95

/each

Edelbrock |

#3252264

Edelbrock 2264 Rollin' Thunder Hydraulic Roller Cam, Chevy 454

Camshaft Type:

Hydraulic Roller Tappet

RPM Range:

1500-6500

Intake Duration (.050" Lift):

248

$550.95

/each

COMP Cams |

#282CL014058

COMP Cams CL01-405-8 Xtreme Energy Hyd. Roller Camshaft Kit,Chevy 7.4L

Camshaft Type:

Hydraulic Roller Tappet

Intake Duration (.050" Lift):

200

Exhaust Duration (.050" Lift):

206

$857.95

/each

Edelbrock |

#3252897

Edelbrock 2897 Super Victor Intake Manifold, Chevy 454/632

Intake Manifold Type:

Single Plane

Carburetor Flange Type:

4-Barrel Dominator

RPM Range:

3,500-8,000

$719.95

/each

COMP Cams |

#282CL116714

COMP Cams CL11-671-4 Nostalgia Plus Solid Camshaft Kit, Chevy B/B

Camshaft Type:

Solid Flat Tappet

Intake Duration (.050" Lift):

239

Exhaust Duration (.050" Lift):

246

$456.95

/each

Showing 1 - 288 of 6,419 results

Shop Feedback:

Did you find what you are looking for?

1978 GMC C25 Engine Parts

Subcategory

Part

Brand

Transmission Family

Availability

Engine Family

Discounts

Price

Customer Rating

Products

Weiand 8122P Street Warrior Intake Manifold 396-427ci, Peanut Port

Weiand 8122 Street Warrior Intake Manifold 396-427ci Engines

Powermaster 578068 XS Volt Alternator, 200 Amps, Serpentine, GM

Powermaster 378068 XS Volt Alternator, 200 Amps, Serpentine, GM

Powermaster 478068 XS Volt Alternator, 200 Amps, Serpentine, GM

Related Articles

Powermaster 57806 Street Alternator, 200A, Serpentine, 12V, GM

Powermaster 37806 Street Alternator, 200A, Serpentine, 12V, GM

Patriot Exhaust H8054-B Header, 73-87 Chevy Truck BBC, Blk, 1-3/4 Inch

Proform 66512 8"" Harmonic Balancer BB Chevy 454

Edelbrock 2161 Intake Manifold, 65-90 BBC W/Oval Port Heads

Edelbrock 2062 Single-Quad Intake Manifold/Carburetor Kit, Chevy

Hedman Hedders 69897 67-91 GM Truck Headers, Silver

Hedman Hedders 66097 67-91 Chevy Truck Headers, HTC

Hedman Hedders 69097 67-91 Chevy Truck Headers, Uncoated

Powermaster 67806 Street Alternator, 200A, Serpentine, 12V, GM

Enginetech ES774 BBC 454/402 Camshaft, 1970-1993

PerTronix 808412 Flame-Thrower Spark Plug Wires, 8 Cyl, GM HEI, Red

PerTronix 808210 Flame-Thrower Spark Plug Wires, 8 Cyl, GM HEI, Black

Flowtech 11510FLT Long Tube Header, 1.5 Inch Tube Size

PerTronix 808311 Flame-Thrower Spark Plug Wires, 8 Cyl, GM HEI, Blue

ICT BILLET 5510-KIT003EM LS Swap Engine Mount Kit, 73-87 GM Truck

Doug's Headers D300Y-B Tri-Y Header, 1-5/8 In, 73-87 Chevy Truck, Blk

Tuff Stuff 7127D 1 Wire Alternator, 100 AMP, V Groove Pulley

Holley 302-20BK GM Gen V LT Swap Oil Pan, Black, Turbo Oil/PVC

Powermaster 27127 Street Alternator, 70 Amps, V-belt, 12V, GM

Edelbrock 9726 Valve Stem Seal, Ford FE, Set of 16

Powermaster 47806 Street Alternator, 200A, Serpentine, 12V, GM

Holley 241-84 BB Chevy M/T Valve Covers, Polished, Cast Aluminum

Holley 241-85 BB Chevy M/T Valve Covers, Satin Black, Cast Aluminum

Holley 300-5 Carburetor Intake Manifold 396ci-502ci

COMP Cams 01-418-8 Xtreme Energy Hyd. Roller Camshaft, Chevy B/B

COMP Cams 01-421-8 Xtreme Energy Hyd. Roller Camshaft, Chevy 454

Edelbrock 2264 Rollin' Thunder Hydraulic Roller Cam, Chevy 454

COMP Cams CL01-405-8 Xtreme Energy Hyd. Roller Camshaft Kit,Chevy 7.4L

Edelbrock 2897 Super Victor Intake Manifold, Chevy 454/632

COMP Cams CL11-671-4 Nostalgia Plus Solid Camshaft Kit, Chevy B/B