1954 Firestone 7.5 connecting rod part number and NOS rings needed

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  • March 2, 2021 at 3:05 pm #232714
    gschnelzer
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      US Member - 2 Years

      I’m working on this Firestone and discovered that the connecting rod is stamped part number 3735-1853. The Firestone service manual part number lists it as 3335-1852. Doing some research, I did not see this part number used on the 7.5’s, but did find a reference in this forum that it applies to a 1957 3.6HP Firestone. Does anyone know if this is the correct rod for this motor? To my knowledge this motor has never been opened up.

      I am also interested in locating NOS rings for this motor – part number 3335-1877.

      1954-Firestone-7.5-crankcase

      March 2, 2021 at 5:35 pm #232724
      frankr
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        US Member - 1 Year (includes $3 online payment fee)

        I say go by the part number in the book. -1852 is the number for a connecting rod ASSEMBLY with cap, bearings, screws ect. The -1853 number stamped on the part is an unfinished casting number

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