Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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America's Oldest Speed Shop ®


Powermaster 8-881 Snug Mount 100 AMP Alternator Kit

SAME DAY SHIPPING! Most orders ship within 24 hours.

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Powermaster 8-881 Snug Mount 100 AMP Alternator Kit

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Q & A

What's in the Box

Mounts alternator on Iower driver's side. Fits S/B Chevy short water pump. Includes alternator, brackets, bolts, spacers, pulley and belt. Maintains 14.9 volts. From crankshaft centerline to outer edge of alternator is 12.3". 


  •  -Alternator
  •  -Alternator Pulley
  •  -Pulley-Crank Kit
  •  -Belt
  •  -Alternator Mounting Bracket


Powermaster's warranty is one year from the date of purchase on all
street rod components, and 90 days for any component use for an off road or race application.  

Powermaster will provide all warranty service and technical support
regarding warranty claims and inquiries directly to the purchaser to
resolve any warranty claims or necessary technical support for warranty
resolution.  Speedway Motors is not able to service, warranty, or
replace any unit that has a warranty consideration.  As such, the
component or components are to be returned to Powermaster and not to
Speedway Motors.  

All customers service inquiries pertaining to warranty and defect claims
are to be directed to Powermaster and not to Speedway Motors:

Powermaster Customer & Tech Support

Phone: (630) 957-4019


Any Powermaster product that is returned directly to Speedway Motors
that is not in a new condition, and that is being returned for warranty
replacement or refund consideration will be immediately forwarded on to
Powermaster from Speedway Motors on behalf of the purchaser with no
further action taken until received by Powermaster.  Powermaster will
then will provide both the purchaser and Speedway Motors with final
resolution as to the warranty claim.

You may also be interested in:

Powermaster 8-801 SB Chevy 50 Amp Mini Alternator Kit w/Serp-Belt
(Part #91068120)

Powermaster provides all the electrical punch you need, while saving weight and space. One-wire unit for small block Chevys using short water pumps. Mounts on either side of engine. Cranks out 14.7 volts and 53 amps. Kit includes mini alternator, brackets, bolts, spacers, drive pulley and belt.

  • True 1-wire hookup with set voltage of 14.7
  • High output to weight ratio
  • Low drag, high speed bearings
  • Black heat dispersant coating

NOTE: Mini alternators are NOT IMCA approved for Hobby Stock or Sport Mod Divisions.

Small Block Chevy Mini Alternator Dimensions (Link)

Powermaster 8-17926 Snug-Fit Chrome Alternator, 100 Amp
(Part #91068126)

This 100 amp PowerMaster 1-wire alternator mounts on the lower left front of your Small Block Chevy. This is a simple one-wire hook-up and includes the bracket and hardware, and pulley.

100 Amp Alternator Installation Instructions (PDF)

XS Power D925 12 Volt Deep Cycle AGM Battery, 6.5 x 7 x 5 Inch
(Part #913D925)

XS Power AGM batteries can save you weight and put the power where it is needed. These top shelf deep cycle batteries are loaded with features, but are still ultra compact which makes them easy to install in tight places.

  • 6.5" L x 7" W  x 5" H
  • Low height fits in compact battery trays and under seats
  • Great for race cars and street rods with limited space
  • 3 year manufacturers warranty