BluePrint Engines 383CI Stroker Crate Engine | Small Block GM Style | Shortblock Plus | Roller Cam



  • HP & Torque: 436 HP / 443 FT LBS
    Compression Ratio: 10.0:1
    Hypereutectic Pistons
    Cast Steel Crank
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SKU: BPEBP38318SP Categories: ,


  • 4 Bolt main
    4.00″ bore
    Passenger side dipstick
    Align honed main bearing boreCylinders honed on computer controlled machine to within .0002 straightness and roundnessCylinders are sonic tested for thickness

    Rotating Assembly:

    • New BluePrint Cast steel crankshaft
    • 3.75″ stroke
      Hypereutectic pistons, 12CC Dish
      New rods with 150,000 PSI bolts
      Hastings moly rings
      Melling high volume oil pump
      Hydraulic roller cam
      Heavy duty single roller timing set
      Harmonic balance

    Cam Specs w/ 1.6 Rocker Arm:

    • Cam Type: Roller
      .544 Intake .555 Exhaust
      230 Intake / 236 Exhaust duration
      @ .050, 110 ° lobe separation angle


    • This engine features a true 4 inch bore, which mathematically yields 377 CID with a 3.75 inch stroke,This engine requires a weighted 8″ harmonic balancer (included), and late 350ci weighted flexplate/flywheel.Please see Recommended Add On’s page for additional parts.The HP and Torque numbers derived from dyno testing with a 750cfm carb, and with H8002K cylinder heads installed.

      *A bronze distributor gear is NOT recommended on this engine


Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to