BluePrint BP3830CT1 GM 383 Base Engine, Vortec Heads, Flat Tappet Cam

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  • Regular price $4,174.00

350 Chevy Small Block V8, 383 Chevy Small Block V8, 383 cu. in. Engine Displacement
**$175 Shipping Included in Price


True Blue Power! BluePrints pro engine builders are enthusiasts just like you and it shows in the quality and performance of every engine they build. Each BluePrint crate engine is carefully dyno tested and ships with printed, proven results. If you’re looking serious horsepower at an affordable price, BluePrint Engines is the choice for you!

GM 383 Base Engine - Cast Iron Vortec Heads - Flat Tappet Cam


  • HP & Torque: 405 HP / 440 FT LBS
  • Compression Ratio: 9.5:1
  • Cast Iron Heads
  • Flat Tappet Cam
  • Cast Steel Crank
  • Part #: BP3830CT1


  • 4 bolt main 1pc rear seal block w/Passenger side dipstick only
  • Square and parallel decked
  • Align honed main bearing bore
  • Cylinders honed on computer controlled machine to within .0002 straightness and roundness
  • Cylinders are sonic tested for thickness

Rotating Assembly

  • New cast steel crankshaft
  • Hypereutetic pistons
  • Chevy heavy beam rods with 150,000 psi bolts
  • Hastings Moly rings
  • Balanced rotating assembly
  • Melling high volume oil pump
  • Flat tappet hydraulic lifter camshaft
  • Heavy duty double roller timing set

Cylinder Heads

  • Cast iron Vortec heads
  • 1.25 diameter valve springs
  • Hardened retainers and springs
  • 2.02 swirl polished intake valves
  • 1.60 swirl polished exhaust valves
  • 1.5 long slot, stamped steel rockers
  • Hardened push rods

Cam Specs

  • Cam Type: Flat Tappet
  • .487 Intake .503 Exhaust
  • 234 Intake / 244 Exhaust duration
  • @ .050 - 112 degree lobe separation

Ignition Timing

  • 34 Degrees Total at 3500 RPM

Also Includes

  • Aluminum intake manifold
  • New chrome valve covers
  • Brass freeze plugs
  • Dyno test results shipped with engine


This engine requires a 400ci weighted harmonic balancer, and late 350ci weighted flexplate/flywheel.BluePrint Engines recommends a 2000- 2400 rpm stall converter. Not for use in pollution controlled vehicles.

This engine requires a 400ci weighted harmonic balancer, and late 350ci weighted flexplate/flywheel.

Zinc Additive Required For Flat Tappet Application, Recommended Oil For Your BluePrint Crate Engine: 10W30, Non-Synthetic. Not For EGR

Some parts are not legal for use in California or other states with similar laws/regulations