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Correct rod Part numbers, SB

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  • Correct rod Part numbers, SB

    hi, does anyone familiar with SB rod Part #s know what i should have here?

    I have just pulled down a 318, it was a late model replacement engine (cast 1984 and assembled 1993) and the rods are part # 3418645 (pressed pin and cast crank)

    The 1971 340 i have just pulled apart has the same part number rods but full floating pins as 340's do. It is a forged steel crank engine.

    I have another set of 340 rods (full floating) i bought off ebay, along with another set of 318 rods, they are all the same 3418645 part number.

    i thought that 340 had a heavier rod with a different part number? I know the 360 does.

    Anyone with a book that tells what the part numbers should be for which engine, or if they changed through the years?

    Thanks,

  • #2
    318s went to the heavier rods in '73.
    1971 Challenger - Autocross & Track Day Project
    2015 Dart GT 6spd - Daily Driver

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    • #3
      Thanks, although someone else said it was 74. What i do know for sure is that with Mopar, Nothing written is 100% gospel in reality when it comes to part numbers.

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      • #4
        For what it is worth the numbers that you are reading on the rod is not the part number. It is a casting number. The same casting is used for different applications with slight variance possible for teh diferent intended useage. Like the pressed pin/floating rods mentioned above used the same casting number rods but the part numbers are different.
        2 TIME (soon to be 3 time) 1000+ member EAGLES CLUB PRES.
        "PEOPLE HELPING PEOPLE"

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