Product Summary

350, 6.25" Outside Diameter, 2.4375" Overall Thickness

  • S/B Chevy
  • Degreed from 10 degrees ATDC to 50 degrees BTDC
  • SFI 18.1 certified

Key Specs

MFG. Part #91015330
BrandSpeedway Motors

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Chrome plated steel balancer for S/B Chevy 350 c.i. V-8. Degreed from 10° ATDC to 50° BTDC. SFI serial number and timing marks are on the outer ring.

  • Forged from 1025 low carbon steel  
  • Injected with high viscosity silicone fluid
  • Rated to 12,500 RPM
  • SFI 18.1 certified

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.


MFG. Part #91015330
BrandSpeedway Motors
Outside Diameter6.25"
Overall Thickness2.4375"
SFI Rating18.1
Material TypeSteel
Sold in QuantityEach
Engine BalanceInternal
Degree MarkingsYes