Chevy V20 Alternators

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Chevy V20

Products

-20%

Powermaster |

#255678021

Powermaster 678021 Street Alternator, 140 Amps, V-belt, 12V

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Polished

$243.99

/each

$307.50

-21%

Powermaster |

#255378021362

Powermaster 378021-362 Street Alternator, 140 Amps, V-belt, 12V

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$264.99

/each

$337.50

-20%

Powermaster |

#255378028362

Powermaster 378028-362 XS Volt Alternator, 140 Amps, V-belt

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$291.99

/each

$367.50

-21%

Powermaster |

#255374021

Powermaster 374021 Street Alternator, 140 Amps, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$264.99

/each

$337.50

-20%

Powermaster |

#25547402

Powermaster 47402 Street Alternator, 140A, Serpentine, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Natural

$221.99

/each

$277.50

Alternator Bracket Install on a 454 Big Block Chevy

Kevin W. walks through each step of installing a new alternator bracket on a 454 Big Block Chevy.

Alternator vs Generator Pros & Cons | Conversion Tips for Your Car

If you're considering upgrading your classic car's charging system with an generator to alternator conversion, here are some helpful tips.

Ford Alternator Buying Guide

Brief review of the different types of Ford alternators and regulators available through Speedway Motors.

GM Alternator Identification

Learn about GM alternator identification in our guide. We cover GM 3 wire alternators, 1 wire alternators, and externally regulated so you know what to choose.

Water Pump Options for the Chevy Crate Engine

In this Tech Tip, a customer asked for some recommendations on water pumps for his 1934 Chevy Coupe build.

Upgrading the Cooling System for a Small Block Chevy

Learn how to successfully upgrade the cooling system for a 400 small block Chevy. Read tips for installing a water pump and auxiliary coolant lines using fittings and fuel hoses.

Transmission Replacement on a 55 Chevy

Learn how Zach replaces a transmission and breakaway converter in his 55 Chevy, with some helpful tips along the way.

How To Set Up Multiple Carburetors on a Vintage Engine

There's a right and wrong way to run a two-barrel carburetor on your vintage engine. Check out this guide about how to select the correct carburetor for your Flathead or vintage engine.

-20%

Powermaster |

#255474021

Powermaster 474021 Street Alternator, 140 Amps, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Natural

$221.99

/each

$277.50

-21%

Powermaster |

#255674021

Powermaster 674021 Street Alternator, 140 Amps, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Polished

$264.99

/each

$337.50

-21%

Powermaster |

#25567402

Powermaster 67402 Street Alternator, 140A, Serpentine, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Polished

$264.99

/each

$337.50

-22%

Powermaster |

#255574021

Powermaster 574021 Street Alternator, 140 Amps, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Powder Coated

$236.99

/each

$307.50

-20%

Powermaster |

#25557402

Powermaster 57402 Street Alternator, 140A, Serpentine, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Powder Coated

$243.99

/each

$307.50

-23%

Powermaster |

#2558012

Powermaster 8012 Race Alternator, 105 Amps, Serpentine, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

105 amp

Alternator Finish:

Natural

$204.99

/each

$268.75

-24%

Powermaster |

#2558018

Powermaster 8018 XS Volt Alternator, 105 Amps, Serpentine, GM

One Wire Alternator:

Yes

Alternator Amperage:

105 amp

Alternator Finish:

Natural

$224.99

/each

$297.50

-24%

Powermaster |

#255378021

Powermaster 378021 Street Alternator, 140 Amps, V-belt, 12V

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$230.99

/each

$307.50

-23%

Powermaster |

#255178021

Powermaster 178021 Street Alternator, 105 Amps, V-belt, 12V

One Wire Alternator:

Yes

Alternator Amperage:

105 amp

Alternator Finish:

Chrome

$210.99

/each

$277.50

-21%

Powermaster |

#255384831

Powermaster 384831 GM CS130D Alternator, 165A, 6-Groove, Chrome

One Wire Alternator:

Yes

Alternator Amperage:

165 amp

Alternator Finish:

Chrome

$290.99

/each

$372.50

Proform |

#586141147

Proform 141-147 Slant-Edge Alternator, GM 10SI, 100 Amp, Black

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$269.95

/each

-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

-20%

Powermaster |

#2557462104

Powermaster 7462-104 Race Alternator, 90A, 12V 1 Wire Regulator

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Natural

$255.99

/each

$322.50

-22%

Powermaster |

#2558182

Powermaster 8182 Race Alternator, 75 Amps, V-belt, 12V

One Wire Alternator:

Yes

Alternator Amperage:

75 amp

Alternator Finish:

Powder Coated

$303.99

/each

$392.50

-22%

Tuff Stuff |

#7457068BU6G

Tuff Stuff 7068BBULL6G Alternator, 100 AMP, Smooth Back, 1 Wire

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$195.99

/each

$252.95

-18%

Powermaster |

#25528462114

Powermaster 28462-114 Race Alternator, 90A, 12V 1 Wire Regulator

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Polished

$330.99

/each

$407.50

-22%

Powermaster |

#25528462

Powermaster 28462 Race Alternator, 90 Amp, 12V 1 Wire Regulator

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Polished

$315.99

/each

$407.50

-20%

Powermaster |

#25528468114

Powermaster 28468-114 Race Alternator, 90A, XS Volt 1 Wire Reg

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Polished

$358.99

/each

$448.75

-22%

Powermaster |

#25528472114

Powermaster 28472-114 Race Alternator, 100A, 12V 1 Wire Regulator

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$315.99

/each

$407.50

-20%

Powermaster |

#2558016

Powermaster 8016 Race Alternator, 105 Amps, Serpentine, 16V

One Wire Alternator:

Yes

Alternator Amperage:

105 amp

Alternator Finish:

Natural

$224.99

/each

$282.50

-25%

Powermaster |

#2558066

Powermaster 8066 Race Alternator, 100 Amps, 16V

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Powder Coated

$250.99

/each

$336.25

$132 Off

Powermaster |

#2558128

Powermaster 8128 Race Alternator, 115 Amps, 12V

One Wire Alternator:

Yes

Alternator Amperage:

115 amp

Alternator Finish:

Powder Coated

$382.99

/each

$515.00

-21%

Powermaster |

#255378608

Powermaster 378608 GM CS130 XS Alternator, 140A, Chrome, Right

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$264.99

/each

$337.50

-22%

Powermaster |

#2558116

Powermaster 8116 Race Alternator, 100 Amps, 16V

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Natural

$312.99

/each

$403.75

-19%

Powermaster |

#2558126

Powermaster 8126 Race Alternator, 115 Amps, 16V

One Wire Alternator:

Yes

Alternator Amperage:

115 amp

Alternator Finish:

Powder Coated

$402.99

/each

$500.00

$137 Off

Powermaster |

#2558148

Powermaster 8148 XS Volt Alternator, 150 Amps, Internal

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Powder Coated

$418.99

/each

$556.25

$102 Off

Powermaster |

#25548163

Powermaster 48163 Alternator, 200 Amp

One Wire Alternator:

Yes

Alternator Amperage:

200 amp

Alternator Finish:

Natural

$343.99

/each

$446.25

-22%

Powermaster |

#2558176

Powermaster 8176 Race Alternator, 55 Amps, V-belt, 16V

One Wire Alternator:

Yes

Alternator Amperage:

55 amp

Alternator Finish:

Natural

$218.99

/each

$282.50

-21%

Powermaster |

#255378618

Powermaster 378618 GM CS130 XS Alternator, 140A, Chrome, Left

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$264.99

/each

$337.50

-20%

Powermaster |

#25537297344

Powermaster 37297-344 Smooth Look Alternator, 140A, V-belt, 12V

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$243.99

/each

$308.75

-21%

Powermaster |

#255678608

Powermaster 678608 GM CS130 XS Alternator, 140A, Polished, Right

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Polished

$264.99

/each

$337.50

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Chevy V20 Alternators

Year

One Wire Alternator

Brand

Availability

Discounts

Engine Family

Price

Customer Rating

Products

Powermaster 678021 Street Alternator, 140 Amps, V-belt, 12V

Powermaster 378021-362 Street Alternator, 140 Amps, V-belt, 12V

Powermaster 378028-362 XS Volt Alternator, 140 Amps, V-belt

Powermaster 374021 Street Alternator, 140 Amps, V-belt, 12V, GM

Powermaster 47402 Street Alternator, 140A, Serpentine, 12V, GM

Related Articles

Powermaster 474021 Street Alternator, 140 Amps, V-belt, 12V, GM

Powermaster 674021 Street Alternator, 140 Amps, V-belt, 12V, GM

Powermaster 67402 Street Alternator, 140A, Serpentine, 12V, GM

Powermaster 574021 Street Alternator, 140 Amps, V-belt, 12V, GM

Powermaster 57402 Street Alternator, 140A, Serpentine, 12V, GM

Powermaster 8012 Race Alternator, 105 Amps, Serpentine, 12V, GM

Powermaster 8018 XS Volt Alternator, 105 Amps, Serpentine, GM

Powermaster 378021 Street Alternator, 140 Amps, V-belt, 12V

Powermaster 178021 Street Alternator, 105 Amps, V-belt, 12V

Powermaster 384831 GM CS130D Alternator, 165A, 6-Groove, Chrome

Proform 141-147 Slant-Edge Alternator, GM 10SI, 100 Amp, Black

Holley 197-304 Premium Alternator, 150A, Polished

Powermaster 7462-104 Race Alternator, 90A, 12V 1 Wire Regulator

Powermaster 8182 Race Alternator, 75 Amps, V-belt, 12V

Tuff Stuff 7068BBULL6G Alternator, 100 AMP, Smooth Back, 1 Wire

Powermaster 28462-114 Race Alternator, 90A, 12V 1 Wire Regulator

Powermaster 28462 Race Alternator, 90 Amp, 12V 1 Wire Regulator

Powermaster 28468-114 Race Alternator, 90A, XS Volt 1 Wire Reg

Powermaster 28472-114 Race Alternator, 100A, 12V 1 Wire Regulator

Powermaster 8016 Race Alternator, 105 Amps, Serpentine, 16V

Powermaster 8066 Race Alternator, 100 Amps, 16V

Powermaster 8128 Race Alternator, 115 Amps, 12V

Powermaster 378608 GM CS130 XS Alternator, 140A, Chrome, Right

Powermaster 8116 Race Alternator, 100 Amps, 16V

Powermaster 8126 Race Alternator, 115 Amps, 16V

Powermaster 8148 XS Volt Alternator, 150 Amps, Internal

Powermaster 48163 Alternator, 200 Amp

Powermaster 8176 Race Alternator, 55 Amps, V-belt, 16V

Powermaster 378618 GM CS130 XS Alternator, 140A, Chrome, Left

Powermaster 37297-344 Smooth Look Alternator, 140A, V-belt, 12V

Powermaster 678608 GM CS130 XS Alternator, 140A, Polished, Right

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