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GM 383 Dressed 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 #: BP3830CTC1

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
Chevy heavy beam rods
Hypereutetic pistons
Hastings Moly rings
Balanced rotating assembly
Melling high volume oil pump
Flat tappet hydraulic lifter camshaft
Heavy duty double roller timing set

Cylinder Heads:
Vortec cast iron cylinder 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
750 cfm carburetor
HEI Distributor
Harmonic balancer
Fuel pump
Water pump
BluePrint plug wires
Spark plugs
Chrome steel valve covers
Brass freeze plugs
Dyno test results shipped with engine

Factory Backed Warranty:
30 month / 50,000 mile

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

BluePrint Engines recommends a 2000- 2400 rpm stall converter.

Engine does not come with fuel line to carburettor as pictured (phone us to clarify)

Not for use in pollution controlled vehicles.

Freight can be arranged no problem but we need to know your location so we can give you a accurate freight quote.


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Shipping options

  • To be arranged
  • Seller allows pick-ups
  • Seller location: Christchurch City, Canterbury, NZ

Payment options

  • Other options
    Cash, NZ bank deposit