BP3961CTC Small Block Crate Engine by BluePrint Engines 396 CI 491 HP GM Style Dressed Longblock with Carburetor Aluminum Heads Roller Cam

HP & Torque: 491 HP / 509 FT LBS
Compression Ratio: 10.4:1
Aluminum Heads
Hydraulic Roller Cam
Forged Crank
Forged Pistons

BLOCK:
New block
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
4-Bolt Main
4.000" Bored .040" Over
1-Piece Rear Main Seal
Mech fuel pump provision: Yes
Passenger Side Dipstick Drilled and tapped for clutch linkage

ROTATING ASSEMBLY:
New BluePrint Forged Crankshaft
3.875 " Stroke
Forged I-beam 6.000" connecting rods
Forged Pistons
Internal Front/ External Rear

CYLINDER HEADS:
BluePrint Aluminum Cylinder Heads - HP8103
64cc chamber
2.08" intake/1.60" exhaust valves
220cc intake/67cc exhaust runners

CAM SPECS:
Cam Type: Roller
.510 Intake .520 Exhaust
230 Intake / 236 Exhaust duration
@ .050, 110 ? lobe separation angle

IGNITION TIMING:
34 degrees total at 3500 RPM

ALSO INCLUDES:
New valve covers, oil pan and timing cover
Aluminum Intake Manifold
HEI distributor
750cfm Carburetor
Brass freeze plugs
Dyno test results shipped with engine

WARRANTY:
30 month / 50,000 mile

NOTES:
Not for use in pollution controlled vehicles.