GM 355 "Vortec" Engine Specs (BP3550CTC1)

BP3830CTC1_med

385 HP/405 ft/lbs
$4,195.00

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PART NUMBER: BP3550CTC1
BLOCK:
  • 4-Bolt Main 1-piece rear seal block w/Passenger side dipstick 
  • 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:
  • Premium cast steel crankshaft
  • Chevy heavy beam rods
  • Keith Black Hypereutetic pistons
  • Hastings Moly rings
  • Balanced rotating assembly
  • Melling high volume oil pump
  • Flat tappet hydraulic lifter camshaft
  • Heavy duty double roller timing set
CYLINDER HEADS:
  • Cast iron "Vortec" cylinder heads
  • 1.25 diameter valve springs
  • Hardened retainers and springs
  • 2.02 swirl polished intake valves
  • 1.60 swirl polished exhaust valves
  • 1.5 long slot, stamped steel rockers
  • Hardened push rods
A TON OF EXTRAS:
  • Aluminum intake manifold
  • 600 cfm carburetor
  • HEI distributor
  • Harmonic balancer
  • Fuel pump
  • Water pump
  • BluePrint plug wires
  • Spark plugs
  • 9.5 to 1 compression
  • Chrome valve covers
  • Brass freeze plugs
  • Dyno tested – and shipped with results
CRITICAL SPECS:
CAM: .480 Int / .486 Exh & 224 Int / 230 Exh duration @ .050 - 112 degree lobe sep.
HORSEPOWER: 385 @ 5500
TORQUE: 405 @ 4100
COMP. RATIO: 9.5 to 1
IGNITION TIMING: 34 Degree Total (at 4000 RPM)
WARRANTY: 30 month/ 50,000 mile
NOTES:

Blueprint Engines recommends 91 Octane for this engine and a 1800-2200 RPM stall converter.

This engine requires a late 350 weighted flexplate/flywheel.