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 cast iron 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
850cfm Carburetor

Dyno test results shipped with engine

WARRANTY:
30 month / 50,000 mile

NOTES:
Not for use in pollution controlled vehicles.