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Blueprint Engines Small Block Chevy Marine 383ci / 405HP / 450TQ

Blueprint Engines
Blueprint Engines Small Block Chevy Marine 383ci / 405HP / 450TQ

Product images may differ from actual product appearance.

Blueprint Engines are a great choice for drivable and reliable high performance engines. All rotating assemblies are balanced within 2 grams on a computerized balancer. Blueprint Engines are dyno tested and include dyno sheets. Best of all they feature a 1 year/Unlimited hours warranty (pleasure craft only).

Available as a
  • Base Engine Assembly - Basic engine with intake manifold and valve covers
  • Dress Engine Assembly - Complete engine including induction, ignition, fuel pump and other accessories

  • 4-bolt main block
  • Passenger side dipstick
  • Square and parallel decked
  • Align honed main bearing bore
  • Cylinders are sonic tested for thickness
  • Cylinders honed on a computer controlled machine to within .0002'' straightness and roundness

    Rotating Assembly:
  • 3.75'' stroke cast crankshaft (1 piece rear main seal)
  • 5.7'' heavy beam rods with 150,000psi bolts
  • Keith Black hypereutectic pistons
  • Hastings Moly rings
  • Clevite bearings
  • Externally balanced rotating assembly
  • Melling high volume oil pump
  • Heavy duty double roller timing set

    Cylinder Heads:
  • GM Vortec cast iron heads
  • Hardened retainers and 1.25'' diameter valve springs
  • 2.02'' swirl polished intake valves
  • 1.60'' swirl polished exhaust valves
  • Hardened pushrods
  • Long slot rockers with positive-locking adjuster nuts

    Camshaft Specs:
  • Comp Cams Hydraulic Roller
  • Duration @ .050'' Lift: 224 Intake / 230 Exhaust
  • Lift: .503'' Intake / .510'' Exhaust
  • Lobe Separation: 112°

    Other Features:
  • Brezenski cast iron marine intake
  • Signature Series polished aluminum valve covers
  • Chrome timing cover
  • New 6-quart rubber coated oil pan
  • Brass freeze plugs
  • 9.5:1 compression

    Dress Model Adds:
  • Edelbrock 750 cfm Electric Choke Marine Carburetor - 350-1410
  • Stainless steel fuel line and filter
  • Cast iron circulating pump
  • Edelbrock fuel pump
  • Professional Products Balancer
  • Distributor
  • Coil
  • MSD spark plug wires

    Horsepower: 405
    Torque: 450

    Note: All Blueprint Chevy 383 engines include a balance plate and require the use of a neutral balance flywheel/flexplate.

    Your BluePrint engine was dyno tested with the parts and specifications listed below. If you prefer to install a different part, your engine may not produce the horsepower recorded on your dyno sheet.

  • Part Number: MBP3830CT
  • Fuel Delivery Type: Carbureted
  • Spark Plug: AC 41-993
  • Spark Plug Gap: .045"
  • Harmonic Balancer: 400ci Weighted
  • Flexplate/Flywheel: Late 350 Weighted
  • Stall Converter: N/A
  • Intake Manifold: Marine, cast iron
  • Fuel Recommendation: 91 Octane
  • Timing (Initial/Total Advance): Initial timing - 10-16° and Total timing 32-34°
  • Firing Order: 1,8,4,3,6,5,7,2

  • 1 Product
    Dress Engine
    Blueprint Engines MBP3830CTC - Blueprint Engines Small Block Chevy Marine 383ci / 405HP / 450TQ
    Small Block Chevy 383ci Dress Marine Engine
  • 405HP/450TQ
  • $189
    Order Today Ships 05/11/16

    1 Product