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Thread: breakin in the cam...?
          
   
   

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  1. #1
    kingkuda440's Avatar
    kingkuda440 is offline CHR Member Visit my Photo Gallery
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    Sep 2004
    Location
    Prescott
    Car Year, Make, Model: 1969 Plymouth Barracuda
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    9

    Question breakin in the cam...?

     



    i recently put a 340 built and put in my 69 cuda, do I need to run the engine @2000 rpm for 20 min to break in the cam, ive heard that you need to and i hear that you cant...please help. thanks.

  2. #2
    Tiny's Avatar
    Tiny is offline CHR Member Visit my Photo Gallery
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    Dec 2004
    Location
    Salem
    Car Year, Make, Model: 71 Chevy Nova & 73 Dart
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    13

    I run between 2000 and 2500 for 20 minutes, but I know others that do not break them in. I would advise breaking it in.
    71 Nova 355 TH350 8.5" 4.10s looking for LOW 13s

    73 Dart just getting started

    98 Cummins Ram, rattlin and smokin

    03 Yukon XL house on wheels

  3. #3
    Dano78's Avatar
    Dano78 is offline CHR Member Visit my Photo Gallery
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    Aug 2003
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    Vancouver
    Car Year, Make, Model: Fords.. All pre-'78
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    Definately break it in. Same for me 2200-2500 for 20 min. Just did a 318 cam swap last weekend. Put in SSI's (PAW) version of the factory 340 cam in his 318. I was hoping the cam would be lumpier then it was, but it sure runs out strong.
    Dan Ouellette
    '25 T C-Cab
    '47 Ford Coupe
    '53 Ford Crestline
    '53 Ford Mainline
    -And 8 more Fords and 2 Mopars

  4. #4
    canadianal's Avatar
    canadianal is offline CHR Member Visit my Photo Gallery
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    waldeck
    Car Year, Make, Model: 66 ford custom,27 t bucket
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    kind of off topic but i did one of those 340 318 cam swaps when i was younger same thing thought it would be a lumpy cam but it ran nice and strong . i then changed the heads to a milled 360 head bigger valves and at least a point in comp , then the little motor really picked up its feet.
    i also do breakins on cams but its not just for the cam after having the engine aparts its good to run it and look for leaks and time it etc.

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