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GM 383 Base Engine • Aluminum Heads • Flat Tappet Cam
$3,729
HP & Torque: 420 HP / 450 FT LBS
Compression Ratio: 10.0:1
Aluminum Heads
Hypereutectic Pistons
Flat Tappet Cam
Cast Steel Crank
Part #: BP3834CT1

Block:

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
Flat top hypereutectic pistons
Chevy heavy beam rods with 150,000 psi bolts
Hastings Moly rings
Balanced rotating assembly
Melling high volume oil pump
Hydraulic flat tappet camshaft
Heavy duty double roller timing set

Cylinder Heads:

BluePrint Performance aluminum
Hardened retainers and springs
2.02 swirl polished intake valves
1.60 swirl polished exhaust valves
BP Aluminum Part# H8002K
For complete head specs, click here

Cam Specs:

Flat   tappet, .480 Intake / .486 Exhaust & 229 Intake / 230 Exhaust duration @   .050

Ignition Timing:

34 degrees total at 3500 RPM

Also Includes:

New chrome valve covers
Brass freeze plugs
Dyno test results shipped with engine

Warranty:

30 month / 50,000 mile

Notes:

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

BluePrint Engines recommends a 2000- 2400 rpm stall converter.

Recommended spark plugs are Champion 792 with .045" gap

Not for use in pollution controlled vehicles.

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