Product Summary

Oldsmobile V8, AMC V8, Ford Small Block V8, Steel

  • 4340 heat treated steel
  • Features a longer slot to eliminate stud bind issues
  • Includes nuts and balls
  • 3/8" rocker stud
  • Non rail type to be used with pushrod guide plates

Key Specs

MFG. Part #57583201
BrandSpeedway Motors
Material TypeSteel

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If your class or budget does not allow aluminum or stainless roller rocker arms, check out these rockers. Made from 4340 heat treated steel and feature a longer slot to eliminate stud bind issues. Includes 16 rocker arms, nuts and balls. 

Rockers accommodate a 5/16" pushrod.

Item Details

S/B Ford - 1.6 Ratio - 3/8" Stud

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 #57583201
BrandSpeedway Motors
Material TypeSteel
Rocker Arm StyleRoller Tip
Rocker Arm Ratio1.6
Stud Size0.375"
Stud Diameter0.375"
Rocker Arm Nut StylePolylock
Sold in QuantitySet
NotesScre-in studs and guide plates required.