Click for Crusader parts and manuals!
Results 1 to 3 of 3
  1. #1

    Default HELP... Crusader Serial# lookup......

    My buddy just bought an oldie but goodie with what he was told had 454 Crusaders in her...

    A mechanic comes out and claims the serial number is coming back as 350 CUBIC INCH motors... Not sure if he's confusing HP with CI??

    Serial numbers are: 55130 and 55131 (1985 era)

    Are these 454 ci or are they 350 ci ??
    "The tide waits for no man"

  2. #2
    Join Date
    Mar 2009
    Portland, Oregon,

    Default Re: HELP... Crusader Serial# lookup......

    It would be helpful if you would post a few photos of these Engines.

    The 350 is a small block.... the 454 is a big block.
    The valve covers and/or exhaust manifolds will give you the best clues.

    SBC valve covers in 1985 will use 4 perimeter bolts...... 2 on the upper side, and 2 on the lower side.
    The two center exhaust ports will be right near each other.

    BBC valve covers in 1985 will use 7 perimeter bolts.... 3 on the upper side, and 4 on the lower side.
    The exhaust ports will look evenly spaced.


    Rick ... aka Ricardo..... AQ series Volvo Penta repair
    Portland, Oregon
    28' SDN F/B w/ twin Volvo Penta 5.7L DP drives

    "Intellectual growth should commence at birth and cease only at death." Albert Einstein

    Please... no PMs! Post your questions on the forum.

  3. #3
    Join Date
    Sep 2008
    Maryland - USA

    Default Re: HELP... Crusader Serial# lookup......

    The serial numbers won't tell you which model you have unless you have access to the old Thermo-Electron records...

    In addition to what Rick provided above, the decals on the valve covers can help, assuming they are original.

Similar Threads

  1. Searching for engine manual- 454 crusader serial no 099700
    By Windsong in forum Crusader Marine Engine Forum
    Replies: 1
    Last Post: 04-26-2018, 03:10 PM
  2. Tomos serial number lookup?
    By labougie in forum Tomos Outboards
    Replies: 0
    Last Post: 12-27-2014, 03:26 PM
  3. honda serial number lookup please
    By hondabob in forum Honda Outboard Forum
    Replies: 1
    Last Post: 10-22-2014, 12:05 PM
  4. Lookup Nissan model year with serial number
    By jc_uf_itk in forum Nissan Tohatsu Outboard Archive
    Replies: 1
    Last Post: 01-03-2009, 10:20 AM
  5. Early Crusader Serial number list
    By andrew in forum Crusader Marine Archive
    Replies: 2
    Last Post: 10-07-2007, 10:32 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts