For those of you that feel the
need for speed on the open water, we offer the ultimate in performance — the Marine BluePrint. All Marine performance engines are completely balanced, blueprinted and dyno-tested just like the rest of the BluePrint line.

marine_title
marine_boat

Blueprint Marine Engines Lineup:

marine_engine_lineup

 


Blueprint PREMIUM SHORTBLOCKS FEATURE:

 


shortblock_engine

 


BLOCKS:

  • Hand-picked, seasoned 4-bolt main
  • 350 blocks bored .040 over
  • 454 blocks bored .060 over
  • Square and parallel decked
  • Align honed main bearing bore
  • Cylinders are sonic tested for thickness
  • Brass freeze plugs
  • Cylinders plateau honed to within .0002 -.0005 straightness and roundness


  • ROTATING ASSEMBLY:

  • Hastings moly rings
  • Balanced rotating assembly
  • Melling high volume oil pump
  • Heavy-duty double roller timing set


  • Note: Standard engine block color is midnight black. Custom painting (standard or match color) extra.



    CYLINDER HEADS:

  • Hardened retainers and keepers
  • Swirl polished intake valves
  • Swirl polished exhaust valves
  • Hardened push rods


  • - 91 Octane Gasoline recommended.
    - These engines not intended for automotive use.


    Engine Rotation Terminology:

    Engine rotation direction is determined by observing Flywheel rotation from the flywheel end of the engine looking forward to the pulley end of the engine.

    Note: Propeller rotation is not necessarily the same as engine rotation. Do not rely on propeller rotation in determining engine rotation.

    marine_engine_rotation

     

     

    Marine Drive Variations:


    Stern Drive


    Inboard


    V-Drive


    Jet Drive



    marine_stern_drive_rotation


    marine_inboard_drive_rotati


    marine_v_drive_rotation


    marine_jet_drive_rotation



    The engine is mounted inside the boat. The transmission/drive unit
    is outside, attached to the transom. The engine and drive unit are joined by a torque coupler and universal joint. Angling the drive steers the boat.

     


    The engine and transmission/drive unit are inside the boat. A drive shaft is connected at the rear of the transmission and is run out of the hull through a sealing unit. The propeller is connected directly to the drive shaft at the in-water end. A separate rudder steers the boat.

     


    Basically a modified inboard installation. The engine is mounted with the front (pulley end) facing stern (rear). The transmission faces the bow (front) and by the use of a universal joint on the end of the transmission, the drive shaft is directed stern-wards under the engine and through the hull. The propeller/rudder arrangement is the same as in a standard inboard installation.


    The engine is mounted inside the boat and attached to a high speed pump which draws in water through an intake grate, increases its velocity and forces it out through a directionally adjustable nozzle which is mounted outside the boat. Changing the direction of the nozzle steers the boat.