400TA-310 Horsepower
Turbocharged Marine Diesel Engine

The 400TA rated at 310BHP is the preferred choice for replacing gasoline power. The engine size nicely replaces its big block gasoline counterparts. The attractive engine price combined with diesel fuel economy makes the 400TA the choice of the informed consumer.


Model: 400TA-310
Engine Type: Four Cycle
Number of Cylinders: Eight
Bore and Stroke: 4.06″ x 3.82″
Displacement: 400cu.in. (6.554cc)
Fuel Pump: Stanadyne-Mechanical
Brake Horsepower: 310BHP at 3600 rpm
Peak Torque: 469 ft. lbs. at 2800 rpm
Dimensions (approx.):

Overall length: 37″
Transom to engine: 41.2″
Width: 29.25″
Height: 30.62″
Weight (dry): 1020 lbs.

10 thoughts on “400TA-310

  1. PenAdmin

    Bruce – I would check to make sure the engines are not running hot, stock they come with 160 degree thermostats (full open at 185 degrees) and water alarms set to go off at 210 degrees. Oil pressure should be between 35 and 50 psi during normal operating periods, alarms are set to go off at or below 10 psi. Also make sure that they are not smoking, black smoke is a sign of fuel delivery issues which can be as simple as a timing adjustment or it could be a sign of bad injectors or a worn out injection pump. If when the engines are wormed up they start hard or will not immediately restart this could also be a sign of a worn out injection pump.
    Now that being said I should also point that we have many customers with thousands of hours on there engines with no major problems. We have one customer that I know of with over 16,000 hour on his twins form the mid 80’s. We do still produce these engines and all the parts are available either through this website or by phone directly to us here in Michigan.

  2. Bruce Girton

    I am looking at buying a boat with twin 310 hp Peninsular engines (400TA). Would appreciate any information as to anything to check for in regards to issues or problems with these type of engines and are parts still readily available? I think they are original (1991) to the boat, if that is possible? Or were they produced after this time? Thanks for any information you can provide.

  3. PenAdmin

    Alejandro – Yes the 310hp Peninsular 400TA will fit in place of the 270hp engines you currently have, the size of the engines is the same. The bellhousings are the same on both engines so your drives will also bolt up. We will contact you with current pricing thanks for your inquiry.

  4. Alejandro Mota

    Hello, i would like to change my original peninsular diesel engines 270HP the beast, in a Regal 3220 commodore year 1998, for a new pair with 310hp aprox. the engines uses a thompson V-Drive. I need to know if the new engines fits in the vessel and if its compatible with the V-drive and also the price. if you have someone who can write me in spanish better because im writing from venezuela thank you.


  5. Bert DeVries

    Vasilatos –

    We do ship to Greece, In fact, Mikas Vitoratos at GV motorsports in Athens is a Peninsular authorized dealer .
    His number there is 30-210-9657-110. We encourage you to contact him to place your order.

    The cost to ship this engine to Greece depends on how you want it shipped. There is a huge difference in cost between
    shipping via ocean or by air.

    If you let us know which way you’d like it shipped, we’ll work with Mikas to get the engine to you.

    Thanks for your inquiry.


  6. Vasilatos Stylianos

    I would like to ask you if you can sent it to Greece.Please tell me the full cost of this engine and also the shipping cost to Greece.
    Thanks a lot for your time!

  7. PenAdmin

    Cengiz –
    We do have an engine with the hp you require however in most cases when you change from a gas engine to a diesel engine you will also need to change the drive. This is because of the reduction ratio and the engine rpm, let me explain. A diesel engine has a lower operating and max rpm than a gas engine so that with a gas engine you may be cruising along at 4500 rpm with a 1 to 1 ratio, to make this easy, so your propeller speed would be 4500 rpm. Now if you powered the same drive with a diesel engine at max rpm you would only be turning the propeller at 3800 rpm thus causing you to loose top end speed. Not to mention the difference in torque between the two engines which requires a stronger drive. Now with this being said depending on the reduction ratio of your drive, the King Cobra drive is one of the few that will hold up to torque of the diesel engine so your drive may work with one of our diesel engines.

  8. cengiz

    Dear Sir ,

    I have a bayline ciera 2655 1989 year boat.
    it has OMC cobra king gas engine.
    I am looking for to buy and diesel engine
    which is suitable for my existing drive.
    power should be 260- 310 hp.
    Dou you have an this type of engine

  9. PenAdmin

    Thanks for the inquiry.

    I have to tell you that we had to correct this page on the web site. While Bravo stern drives are available with any Peninsular engine, this engine does not come bundled with the stern drive as we were suggesting on this page. I’ve corrected that and you need to know that the pricing is for the engine only and the stern drive is not included in this price.

    That said, the price for the 400TA-310 engine starts at $15,500 and can increase depending on what options you want included to add. For the most accurate pricing, you’ll want to call and talk to Matt. You can reach us at (616) 530-1298 or via Skype from outside the USA. (Skype calls are by appointment. Schedule via bert@PeninsularDiesel.com)


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