513G Gear Drive Camshaft - Generator Style for 1948-'69 Big Twins

513G Gear Drive Camshaft - Generator Style for 1948-'69 Big Twins

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These camshafts are for 1954–'84 big twins with either the Hydraulic Conversion kit or the Cylinder Head Replacement kit for panhead engines. They are also replacement parts for P-Series and SH-Series engines. Since these kits and engines include 1984–'99 style hydraulic lifters,the larger late style roller diameter requires that cams designed for 1984–'99 models must be used to achieve correct valve timing. When choosing a late style cam for this type of engine, be aware that, due to the approximate 1.5:1 rocker ratio of most aftermarket rocker arms for shovelheads, the total valve lift will be reduced by about 9% from the specified value. The specification chart shown here shows specs as used in a pan or shovel engine. These cams are available in

Fits:

  • 1954–'65 engines with S&S Head Update kit
  • 1966–'84 engines with Hydraulic Conversion kit
  • P-Series and SH-Series engines
  • Custom generator style engines with 1984–'99 style top end



Features and Benefits:

  • Quality construction – Made in-house by S&S Cycle in Viola, WI
  • Higher lift and increased valve timing for better performance
  • Quiet, dependable hydraulic valve train when used with S&S Hydraulic Conversion kits

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