GM 383 Engine Specs (BP3833CTC1)

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420 HP/450 ft/lbs
$4,895.00

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PART NUMBER: BP3833CTC1
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 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 double 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
A TON OF EXTRAS:
  • Aluminum intake manifold
  • Distributor
  • 750cfm carburetor
  • 9.5 to 1 compression
  • New chrome valve covers
  • Brass freeze plugs
  • Dyno tested – and shipped with results
CRITICAL SPECS:
CAM: .520 intake, .540 exhaust lift / 236 intake, 242 exhaust duration at .050
HORSEPOWER: 420 @ 5700 rpm
TORQUE: 450 @ 4400 rpm
COMP RATIO: 9.5 to 1  (requires 91 octane fuel)
IGNITION TIMING: 34 degrees total (at 4000 RPM)
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.