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Results 1 to 9 of 9
  1. #1

    Exclamation Chris craft engine swap, 305k to 327k is it possible?? Or other options

    Hello boaters, I have a catalina 251 1979 it has a 305k engine, but the original engine had a crack in the block, i was wondering if a 327k engine would fit in the engine bay which originally held the 305k maybe new mounts???? please help

  2. #2
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    3,199

    Default Re: Chris craft engine swap, 305k to 327k is it possible?? Or other options

    The block will bolt right in. FYI A lot of the Chris Crafts had Counter rotating engines in them.
    Chris
    Dockside Marine Services
    Jersey Shore.
    Let the insanity begin.

  3. #3

    Default Re: Chris craft engine swap, 305k to 327k is it possible?? Or other options

    Quote Originally Posted by Docksidemarineservices View Post
    The block will bolt right in. FYI A lot of the Chris Crafts had Counter rotating engines in them.
    so it would fit than? just to be clear, the 327 is counter rotation

  4. #4

    Default Re: Chris craft engine swap, 305k to 327k is it possible?? Or other options

    also another question arose, would the transmission of the 305k fit the 327k??

  5. #5
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    3,199

    Default Re: Chris craft engine swap, 305k to 327k is it possible?? Or other options

    The blocks are the same. You have to check to see if your original engine is counter rotation.
    Chris
    Dockside Marine Services
    Jersey Shore.
    Let the insanity begin.

  6. #6
    Join Date
    Sep 2008
    Location
    Medfield, MA, US
    Posts
    17

    Default Re: Chris craft engine swap, 305k to 327k is it possible?? Or other options

    Quote Originally Posted by Docksidemarineservices View Post
    The blocks are the same. You have to check to see if your original engine is counter rotation.
    Just to be clear, when you say "counter rotation," are you referring to a right-hand turning or left-hand turning engine? Thanks.

  7. #7
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    3,199

    Default Re: Chris craft engine swap, 305k to 327k is it possible?? Or other options

    Yes. Looking at the flywheel (back of the engine) CCW is standard rotation. CW is right hand or reverse rotation. With the year of his Chris Craft his engine should not be flywheel forward and may be a Reverse rotation engine.
    Chris
    Dockside Marine Services
    Jersey Shore.
    Let the insanity begin.

  8. #8
    Join Date
    Mar 2009
    Location
    Portland, Oregon,
    Posts
    7,314

    Default Re: Chris craft engine swap, 305k to 327k is it possible?? Or other options

    Standard LH Rotation is same as automotive.





    BTW, you can very likely build a SBC Marine 5.7L more cost effectively than you will be able to build a 327.


    .
    Last edited by RicardoMarine; 03-26-2012 at 09:10 AM.
    Rick ... aka Ricardo
    Portland, Oregon
    28' SDN F/B w/ twin Volvo Penta 5.7L DP's

  9. #9
    Join Date
    Apr 2011
    Location
    Detroit River" Ford Yatch Club"
    Posts
    29

    Default Re: Chris craft engine swap, 305k to 327k is it possible?? Or other options

    The 5.7L is the way to go. I had a 1969 w/ 327Q . Not much more top end but was defiantly better on fuel. The engine won't work as hard. Everything was a direct easy swap didn't have to modify a thing. I bought brand new
    "Pro-Formance Marine" engines.






    BTW, you can very likely build a SBC Marine 5.7L more cost effectively than you will be able to build a 327.


    .[/QUOTE]
    "Going slow like a pro"

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