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What Are the Basic Specifications for the Discontinued BluePrint BP3837CTC 383 Small Block Chevy Engine?

 What Engine Is This? This engine is a 383 cubic inch Small Block Chevrolet stroker based on a late-model roller block configuration. Key features include:
  • 383 cubic inch displacement
  • Hydraulic roller camshaft
  • 4-bolt main block
  • One-piece rear main seal
  • Carbureted induction system
  • Forged rotating assembly
  • Aluminum cylinder heads
  • External rear balance configuration
  • Passenger-side dipstick
What Are the Bore and Stroke Specifications? The engine uses the traditional 383 stroker combination:
  • Bore: 4.040 inches
  • Stroke: 3.750 inches
  • Displacement: 383 cubic inches
The engine was built using a .040-inch overbore configuration only. What Type of Block Does It Use? The engine is built around a:
  • Late-model Chevrolet roller block
  • 4-bolt main configuration
  • One-piece rear main seal design
  • Mechanical fuel pump provisions
  • Passenger-side dipstick arrangement
The block was machined for hydraulic roller camshaft operation. What Type of Rotating Assembly Does It Use? The rotating assembly consists of:
  • Forged steel crankshaft
  • Forged steel connecting rods
  • Forged aluminum pistons
This combination was designed for increased durability compared to cast rotating assemblies. What Cylinder Heads Are Used? The engine utilizes:
  • Aluminum performance cylinder heads
  • Performance-oriented combustion chamber design
  • Screw-in rocker studs
  • Guide plates
  • Hydraulic roller valvetrain compatibility
What Camshaft and Valvetrain Does It Use? The engine is equipped with a:
  • Hydraulic roller camshaft
  • Hydraulic roller lifters
  • 1.6:1 roller rocker arms
  • Hardened pushrods
  • Guide plate valvetrain system
The hydraulic roller design provides:
  • Improved durability
  • Reduced valvetrain friction
  • Increased performance potential
  • Minimal maintenance requirements
What Fuel and Ignition System Does It Use? The engine was supplied with:
  • Four-barrel carburetor
  • Dual-plane aluminum intake manifold
  • Performance distributor
  • Electronic ignition system
  • Performance spark plug wire set
What Cooling System Components Are Included? The engine was originally equipped with:
  • Long-style water pump
  • Standard rotation water pump
  • V-belt accessory drive configuration
  • Water pump and cooling system components installed
What Balance Configuration Does It Use? This is an important service item. The engine uses:
  • Neutral-balance front damper
  • External balance at the rear
  • Weighted flywheel or flexplate required
Do not install a neutral-balance rear flywheel or flexplate on this engine. What Are the Basic Assembly Specifications?
Specification Value
Displacement 383 CID
Bore 4.040"
Stroke 3.750"
Main Caps 4-Bolt
Rear Main Seal One-Piece
Cam Type Hydraulic Roller
Cylinder Heads Aluminum
Fuel System Carbureted
Balance External Rear Balance
Water Pump Rotation Standard Rotation
Rocker Ratio 1.6:1