GM 383 Dressed Engine • Aluminum Heads • Roller Cam

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HP & Torque: 430 HP / 450 FT LBS
Compression Ratio: 10.0:1
Aluminum Heads
Roller Cam
Cast Steel Crank
Part #: BP38313CTC1


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 heavy-duty 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 Head Part# H8002K
For complete head specs, click here

Cam Specs:

Cam Type: Roller
.528 Intake
.536 Exhaust 
221 Intake / 226 Exhaust duration
@.050 - 110 degree lobe separation

Ignition Timing:

34 degrees at 3500 RPM

Also Includes:

Valve covers, oil pan and timing cover
Aluminum Intake Manifold
HEI distributor
750cfm Carburetor
Brass freeze plugs
Dyno tested – and shipped with results


30 month / 50,000 mile


Not for use in pollution controlled vehicles.

What harmonic balancer should I use for my 383?

The harmonic balancer that we recommend for our BP38313CTC1 is a 400 ci weighted, 8" diameter. Part number BPP400

What flexplate / flywheel should I use for my 383?

The flexplate / flywheel that we recommend for our BP38313CTC1 is a late 350 Weighted (1 pc Rear Main Seal, Externally balanced)

For our 383 Crate engines we recommend the additional parts:

Spark Plug: Champion 792

Spark Plug Gap: .045"

Stall Converter: 2000-2400 rpm


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