EJ20 Crankshaft and EJ25 Crankshaft

Molnar Technologies Subaru Crankshaft

We have an assortment of Subaru EJ20 and EJ25 crankshaft models to choose from and new parts are constantly under development for addition to the Molnar Technologies line of premium Subaru lightweight billet crankshaft offerings. We have a selection of different length stock and EJ20 and EJ25 stroker crank part numbers available for these popular high performance Subaru engines. The available stroke lengths are the stock EJ20 75mm stroke, stock EJ25 79mm  which can also be used as a EJ20 stroker crank and also an 83mm stroke crankshaft that can be used in either the EJ20 or EJ25. This gives you several options for building a stock or longer stroke version EJ20 or EJ25 stroker engine.

EJ25 crankshaft

Molnar Technologies superior 4340 steel Subaru crankshafts are extremely strong, precision machined high performance parts and are ideal for use in high performance street cars and trucks, engine swap project,  and oval, road racing, rally racing, drifting and other competition vehicles. A wide variety of displacement sizes can be built using these cranks as the foundation for a Subaru EJ20 or EJ25 stroker kit. These Subaru crankshaft models are an excellent choice for use in building a high output, dependable EJ20 or EJ25 engine powered vehicle.

Check out the many premium features included with each Molnar Subaru crankshaft and order today to get started on your next engine project. Check out our selection of Molnar connecting rods also and get a set of rods that will be the perfect match for your new stock stroke or EJ20 or EJ25 stroker crankshaft.

Molnar Subaru EJ20 and EJ25 Crankshaft Features

  • 4340 billet steel
  • Nitrided main and rod journal surfaces for superior wear resistance
  • Multi stage heat treatment
  • Precision machined to extremely tight tolerances
  • Material properties are monitored closely to insure optimum performance
  • Counterweight placement designed for improved crankshaft performance
  • .125" radius on both the connecting rod and main journals for increased strength
  • Precision ground and micro-polished journals
  • Chamfered oil holes for improved oiling
  • Indexed for correct stroke
  • Work with position 3 or position 5 thrust. They can be used in either thrust location engine block


Molnar EJ20 / EJ25 Stroker Crank Specs

All Molnar Technologies Subaru crankshafts are designed and machined to work with position 3 or position 5 thrust. They can be used in either thrust location engine block

  • Stroke Crankshaft stroke length
  • Desc Additional information about specific applications
  • Pin Crank rod pin / rod journal diameter
  • Main Main journal size
Part # and Price Stroke Desc Pin Main


$1792.43 $1548.66
75mm EJ20 crankshaft, stock stroke stock stock


$1792.43 $1548.66

EJ20 Stroker crank

EJ25 crankshaft, stock stroke

stock stock


$1792.43 $1548.66
83mm EJ20 and EJ25 stroker crank stock stock


If you do not find the 4340 billet steel lightweight crankshaft you need, please contact us for assistance. New models are constantly in development so we may have Subaru crankshafts available that have not been added to this website yet.

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