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  1. #1
    Bronze Member
    Join Date
    May 2009
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    77

    Default B2320/b2620

    This is a question for the diesel mechanics on the forum. The b2320 is rated at 23 hp/17hp pto while the b2620 has 26hp/19hp pto. Both tractors use the same engine. What differences would produce more hp in the b2620?? Would it be larger injectors? Different injector pump?

    I know, say with diesel trucks, much can be done to dramatically increase hp and fuel economy, etc

    Do tractors such as described above respond to "tuning" mods in the same way??

  2. #2
    Platinum Member kcender's Avatar
    Join Date
    Mar 2010
    Posts
    684
    Location
    Nova Scotia
    Tractor
    B2620 GR2120

    Default Re: B2320/b2620

    I can't answer your question but according to the kubota website the two tractor engines have different model numbers.The 2620 is a D1105 while the 2320 is a D1005,which is the same engine model number for the BX2660 and BX2670.

  3. #3
    Bronze Member
    Join Date
    May 2009
    Posts
    77

    Default

    Kcender. Agree with your engine model comment but if you drill deeper the block and head part numbers are the same

  4. #4
    Bronze Member
    Join Date
    Nov 2012
    Posts
    84
    Location
    CA
    Tractor
    several

    Default Re: B2320/b2620

    Quote Originally Posted by GSmith4965 View Post
    Kcender. Agree with your engine model comment but if you drill deeper the block and head part numbers are the same
    The B2620 has a larger displacement than the B2320, so it must be a longer stroke engine with a different crankshaft, connecting rods, and possibly pistons.

  5. #5
    Silver Member Mac25's Avatar
    Join Date
    Jun 2011
    Posts
    147
    Location
    Danville, IN
    Tractor
    Kubota B2320 HST with LA 364 FEL

    Default

    Quote Originally Posted by rider0 View Post

    The B2620 has a larger displacement than the B2320, so it must be a longer stroke engine with a different crankshaft, connecting rods, and possibly pistons.
    I agree, bore and stroke is the easiest. Probably just the stroke in this case.

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