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Allstar Performance

Allstar Performance Small Block Chevy Reduction Pulleys ALL31030 Crankshaft Pulley, V-Belt, 2-Groove, 4.75 in., Aluminum, Natural, Chevy, Block, Short Pump, Each

SKU: AAFALL31030

Crankshaft Pulleys
Allstar Performance Small Block Chevy Reduction Pulleys ALL31030 Crankshaft Pulley, V-Belt, 2-Groove, 4.75 in., Aluminum, Natural, Chevy, Block, Short Pump, Each

Allstar Performance

Allstar Performance Small Block Chevy Reduction Pulleys ALL31030 Crankshaft Pulley, V-Belt, 2-Groove, 4.75 in., Aluminum, Natural, Chevy, Block, Short Pump, Each

SKU: AAFALL31030

Crankshaft Pulleys
A$218.43
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

Get the right racing ratio with Allstar small block Chevy reduction pulleys. Stock pulleys do not provide the correct ratio for racing, where engine rpm is much different than it is for street applications. Allstar aluminum pulleys are specifically made for racing and are smaller in diameter. Enhance your acceleration capabilities with Allstar SBC reduction pulleys.

Additional Information

For 1 inch mandrel

Part Type

Crank Pulley 2 Groove 4.750in Dia

Data: v4.2 - Upd: 2026-09-27 12:13:20

Specifications

Product Attributes - Brand
Allstar Performance
Product Attributes - Manufacturer's Part Number
ALL31030
Product Attributes - Part Type
Crankshaft Pulleys
Product Attributes - Product Line
Allstar Performance Small Block Chevy Reduction Pulleys
Product Attributes - UPC
848238018998
Product Attributes - Pulley Style
V-belt
Product Attributes - Water Pump Style
Short
Product Attributes - Crankshaft Pulley Bolt Hole Quantity
Three
Product Attributes - Groove Quantity
2
Product Attributes - Underdrive
Yes
Product Attributes - Underdrive Percentage
30 percent
Product Attributes - Overdrive
No
Product Attributes - Hardware Included
No
Product Attributes - Outside Diameter (in.)
4.750
Product Attributes - Crankshaft Nose Cover Included
No
Product Attributes - Pulley Material
Aluminum
Product Attributes - Pulley Finish
Natural
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Crankshaft pulley will work with either ALL31040 or ALL31050 water pump pulley without spacers.

Reference Information

Brand Name/s Allstar Performance
StreetFX SKU aafALL31030
SFX Item ID 4769678
Supplier Item Code 4769678
Manufacturer SKU ALL31030
Manufacturer UPC 848238018998
Alternative References 2-Groove

Compatibility

Application Data
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1955
    Ending Year1957
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.3L/265
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1957
    Ending Year1967
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.6L/283
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1962
    Ending Year1969
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.4L/327
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1967
    Ending Year1969
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.9L/302
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1967
    Ending Year1987
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1968
    Ending Year1973
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/307
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1970
    Ending Year1980
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size6.6L/400
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1976
    Ending Year1987
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1979
    Ending Year1982
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.4L/267

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