Alternators is internally regulated, Works as either a 1 or 3 wire operation, Features a natural finish for stock appearing applications, Positions alternator above intake, between passenger side valve and water outlet, For Small Block Chevy using short water pump
GM 12SI 100 Amp Plain Alternator and SBC Upper Bracket Speedway Motors
GM 12SI 100 Amp Plain Alternator and SBC Upper Bracket
Sku # 9101382
Mfr. Part # 9101382
Condition
New
Brand
Speedway Motors
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Kit
Details
Info

Alternator

Powermaster's most popular GM alternator fits most models, 1965-'85 with straight mount 6.61 inch bolt spacing.

  • Works as 1 or 3 wire operation
  • Internally regulated
  • Pulley included, single groove
  • V-belt style
  • 100 amp with 70 amps at idle, and 90 amps at cruising speed
  • Natural finish for stock appearing applications

(Link)

See the difference between the popluar alternators we offer by reading our tech article, (Link) and learn how to correctly install your new 1-wire alternator by reading our tech article, (Link).

Bracket
Positions alternator just above the intake, between passenger side valve cover and water outlet. Designed to mount GM "Delco" alternators on S/B Chevy V8 using '55-'68 short style water pumps.
Charts

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Specs
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Kit
Belt Type
V-Belt
One Wire Alternator
Yes
Regulator Included
Yes
Belt Width
0.375
Alternator Bracket Finish
Natural
Alternator Pulley Included
Yes
Alternator Brackets Included
Yes
Voltage Required
12-Volt
Alternator Amperage
100 amp
Alternator Finish
Natural
Alternator Case Style
GM 12SI
Regulator Style
Internal
Alternator Bracket Material
Steel
MFG. Part #
9101382
Tech Support
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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.