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Speedway 1:1 Pulley Combo, Small Block Chevy Short Pump

SAME DAY SHIPPING! Order within the next 13 hours 28 minutes and receive same day shipping

Specs
Material Type:
Aluminum
Sold in Quantity:
Set
Finish:
Natural
Shaft Diameter:
.75
Overall Diameter:
5.50
Belt Width:
.38
Groove Count:
2
Bushing Length:
.38
Bushing Diameter:
.63
Notes
Includes bushing to mount on 3/4" or 5/8" pump.
Speedway 1:1 Pulley Combo, Small Block Chevy Short Pump
Speedway 1:1 Pulley Combo, Small Block Chevy Short Pump
Speedway 1:1 Pulley Combo, Small Block Chevy Short Pump
Speedway 1:1 Pulley Combo, Small Block Chevy Short Pump

Click image to enlarge

Details

Reviews

Q & A

What's in the Box

Kit includes a cast aluminum double groove water pump pulley and double groove crank pulley, and a matched pair of heavy duty belts. Has a 1:1 water pump/crankshaft speed ratio.

Fits Small Block Chevy V8 with '55-'68 short-style water pump with either a 5/8" or 3/4" shaft.

Note: The lower crank pulleys in our combo kits are manufactured thicker than normal stock pulleys.  This requires longer 3/8" bolts to be purchased separately.  Allen head type bolts recommended.

Get the correct pulleys for your application by learning which water pump you have as explained in our tech article. SBC - Short vs Long Water Pump

Specs


Customer Reviews

Rated 4.3 out of 5 by 3 reviewers.
RATING BREAKDOWN
3 reviews
5 Stars
2
4 Stars
0
3 Stars
1
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

Johnnyb
Verified Purchaser
Scranton, pa

Great product

June 15, 2015
Belts fit perfect, pulleys lined up great. Also great price! Will buy again!
Pros:
  • Excellent Fitment
Yes, I recommend this product.
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Was this review helpful? 0 0

00ssnorcal

Belts are not sized correctly

May 19, 2013
Belts walk / slip @ or above 6800 rpm my be better in non race application
No, I would not recommend this product.
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Merchant Response:

Please note that our last inventory of these kits included the wrong length V-belt. The mistake has now been corrected and we can ensure that these kits now include the correct length belts. We sincerely apologize for any inconvenience this may have caused and will gladly replace your old belts if needed.
speed racer
Verified Purchaser
Floresville, Texas

I will use this again no problem

August 27, 2010
easy and simple to install, Looks good does the job on cooling
Pros:
  • Pulleys look great
  • Belts nice and tight
  • Fit Perfect
Yes, I recommend this product.
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Page 1 of 1

Product Q&A

3 questions : 3 answers

1 answers

What size are the belts?

sprint
Lubbock, TX, USA
January 12, 2015

What size are the belts?

Answers

January 13, 2015
EricM
The belts are 3/8" wide x 30 5/8" long.
1 answers

what is the outside diameter of these pulleys

flo1
Candler, NC 28715, USA
January 22, 2013

what is the outside diameter of these pulleys

Answers

January 22, 2013
Jason
These are 5.50" diameter pulleys
1 answers

What bolt length do you recommend for the lower pulley going through the pulley and balancer to crankshaft?

Z
July 14, 2015

What bolt length do you recommend for the lower pulley going through the pulley and balancer to crankshaft?

Answers

July 14, 2015
Eric
Expert
Our bolt kits 91015441 or 91015442 are recommended for the lower pulley. The bolts in those kits are 1" long.
Page 1 of 1

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Learn more about using different water pump accessories to best fit your application by reading our tech article.  SBC - Short vs Long Water Pump

Item Details

(2) 1/16" shims, (1) 1/8" shim
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Kit includes a cast aluminum double groove cast aluminum water pump pulley, crank pulley, and a matched pair of heavy duty belts. Slows water pump speed by 20% for increased horsepower.

  • Upper Pulley Grooves:  Two
  • Lower Pulley Grooves:  Two 
  • Upper Pulley Diameter:  6-5/8" O.D.
  • Lower Pulley Diameter:  5-7/16" O.D.
  • Upper Pulley Snout Hole:  5/8" O.D. (can be drilled out to 3/4")

Fits Small Block Chevy V8 with '55-'68 short-style water pump with 5/8" shaft.

Note: The lower crank pulleys in our combo kits are manufactured thicker than normal stock pulleys.  This requires longer 3/8" bolts to be purchased separately.  Allen head type bolts recommended. 

Get the correct pulleys for your application by learning which water pump you have as explained in our tech article. SBC - Short vs Long Water Pump.

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Replacement pairs of matched belts for Speedway small block Chevy cast aluminum pulleys for short water pump.

Water Pump ID Chart (GIF)

Item Details

Pair of Matched Belts, 3/8" x 30-5/8" length