Product Summary

Chevy Small Block V8, 1.6 Rock Arm Ratio

    Key Specs

    MFG. Part #57533353
    BrandSpeedway Motors

    Need To Know

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    Speedway Motors 57533353 Details

    Any top quality engine you look at will have shaft type rocker arms on it, whether its NASCAR, NHRA or Bonneville racing. The reason is they are the strongest, most reliable rocker arm money can buy. 

    These include fully machined aluminum rockers, premium centerless ground shafts and needle bearings, alloy fasteners and tool steel lash adjusters.

    For S/B Chevy with 23-degree valve aftermarket heads. 

    Item Details

    1.6 Rocker Ratio


    STOP!! If your cylinder head is not listed below, DO NOT attempt to install this system!!


    • Chevrolet OEM - Early Model Head with Standard Pivot and Standard Offset, Vortec, Fast Burn, Late Model Bowtie, LT1/LT4
    • AFR - 165cc-225cc with Standard Stud Spacing
    • All Pro Cylinder Heads - 200, #200, SP Head, Street Strip & 305-23
    • Brodix - -8, -10, -11, Track 1, FB 1000
    • Dart - Iron Eagle/ Sportsman II
    • Edelbrock - Victor Jr./E-Tec.
    • GM Performance Parts - 23° Aluminum
    • Profiler - 23° Small Block Chevy, P/N 176
    • Pro Topline - 23° Small Block Chevy
    • RHS - 23° Pro Action
    • Trick Flow - 23° Small Block Chevy: Super 23 SBC
    • World Products - SR/Sportsman II


    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.

    Speedway Motors 57533353 Specifications

    MFG. Part #57533353
    BrandSpeedway Motors
    Rock Arm Ratio1.6
    Sold in QuantitySet