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    Hilborn #57 Rotator Spool SMALL ENGINES & on GAS
    Hilborn #57 Rotator Spool SMALL ENGINES & on GAS   V8 on GAS unblown

    Thumbnail Filmstrip of Hilborn #57 Rotator Spool SMALL ENGINES & on GAS V8 on GAS unblown Images

      Purchase Hilborn #57 Rotator Spool SMALL ENGINES & on GAS V8 on GAS unblown

      SKU: AD-57
      Hilborn #57 Rotator Spool Small Engines , Gas, Methanol, 40 -300 cu in

      $69.00

       



      Factory Hilborn rotator spool   #57 

                                                                                                                              This fits all Hilborn barrel (metering) valves

                                                                                              #57 spool 
            .100" wide ramp       Great for GAS engines -   helps plug fouling 

                      For small engines like 1 cylinder and motorcycles - Alky or Gas ok. ( not for Big Harley engines -  use a #54 for alky or #56 for blown alky )                                                                                                                            

                                                                                                                                                        Non-turbo
        Non-blown

      These rotors are for the standard Hilborn metering valve. O-ring included. Choose from:
      A - #57 Small motor on GAS 40-100 cu in  or methanol for 1 cyl engines  up to 350 cu in on GAS 
      B - #54 Medium to large motor GAS or ALCOHOL  
      C - #61 or 58   Medium to large motor, moderate to 30%  percentages of NITRO. Slot width:
      A = .100"
      B = .187"
      C = .312"



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