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GM 383 Base Engine • Cast Iron Vortec Heads • Roller Cam
$3,829
HP & Torque: 420 HP / 440 FT LBS
Compression Ratio: 9.5:1
Cast Iron Heads
Roller Cam
Cast Steel Crank
Part #: BP3833CT1

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
Hypereutetic pistons
Chevy heavy beam rods with 150,000 psi bolts
Hastings Moly rings
Balanced rotating assembly
Melling high volume oil pump
Roller camshaft
Roller tip rockers
Heavy duty 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
Hardened push rods

Cam Specs:

Cam Type: Roller
.510 Intake .520 Exhaust
230 Intake / 236 Exhaust duration
@ .050

110* Lobe separation angle

Ignition Timing:

34 degrees total (at 3500 RPM)

Also Includes:

Aluminum intake manifold
New chrome valve covers
Brass freeze plugs
Dyno tested – and shipped with results

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.

*A bronze distributor gear is NOT recommended on this engine

Not for use in pollution controlled vehicles.

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