What is a 383 Stroker?

by | Jul 5, 2019

We often get asked the question, “What is a 383 Stroker?”  We’re going to make things easy with a short and sweet explanation to help clear the confusion!
A Chevy 350 can be modified into what is called a 383 stroker by a particular process.  This process involves:
  • Installing an over-sized 400 crankshaft into the engine
  • Machining the internal parts for clearance purposes
  • Extra balancing and blueprinting and so on
These changes make the pistons travel up and down the cylinder further creating a longer “stroke” and increasing the engine displacement without changing the block.  The displacement increases from 5.7 ;oters (350 cubic inches) to 6.27 liters (383 cubic inches).
This longer stroke creates more torque and power, especially in low RPM’s and is the best option for daily street driving for someone who wants a little more fun.  This engine is also useful for those who truck owners who tow heavy items on a frequent basis, especially when towing uphill!

Have any other questions about a 383 stroke engines?  No problem!  Feel free to submit a comment below or email us at sales@westcoastengines.com.


  1. Jesus grajeda

    Hello my name is jesse, im interested on a new block for my 94 suburban. Would you recommend a 383 stroker for daily and road trips ?

    • West Coast Engines

      Absolutely! Check out our “Work Horse” 383 stroker TBI engine on our website. That would fit your vehicle. And if you have any further questions email us at sales@westcoastengines.com

  2. Danniel Amyx

    Can a four bolt block be used?
    If so, Would a 350 four bolt be preferable to a standard block?

    • West Coast Engines

      We prefer the newer roller blocks. 4 or 2 bolt depends on power and what the engine will be used for. We have an article about this, check our our tech articles.

    • David King

      Looking for a stroker motor for a 1984 step side Ford pickup, horsepower, radical sounding.

      • West Coast Engines

        Cool! Hit up our sales team.

  3. Bill

    Are the strokes engines internally or externally balanced?

    • West Coast Engines

      Externally balanced


Submit a Comment

Your email address will not be published. Required fields are marked *