GM 396 Engine Specs (BP3961CTC)

bp3834ctc1_med

485 HP/500 ft/lbs
$5,995

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PART NUMBER: BP3961CTC

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 forged steel crankshaft
  • New forged pistons
  • Hastings Moly rings
  • Balanced rotating assembly
  • Melling high volume oil pump
  • Roller cam
  • Heavy duty timing set
  • Long slot, stamped steel rockers

CYLINDER HEADS:
  • New aluminum cylinder heads
  • 195cc Runner
  • 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
  • 10.4 to 1 compression
  • Valve covers, timing cover and oil pan
  • Brass freeze plugs
  • Dyno tested – and shipped with results

CRITICAL SPECS:

CAMSHAFT INSTALLATION:

.544 Intake / .554 Exhaust & 230 Intake / 236 Exhaust duration @ .050

HORSEPOWER: 485
TORQUE: 500
COMPRESSION RATIO: 10.4 to 1

IGNITION TIMING: 342degrees at 4000 RPM
additional notes (if any)