BP3961CTF BluePrint Engines 396 c.i SB Dressed Longblock w/ EFI BluePrint Engines 396 c.i. Small Block GM style engine - dressed longblock w/ EFI. incl. 30 month / 50,000 warranty & Dyno Part #: BP3961CTF.

Description:

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

Block:

• BluePrint Engines High Strength Cast Iron Block
• Manufactured and Machined in the USA!
• 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" Bore
• 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
• Internally Balanced Front - Externally Balanced 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
• .544 Intake / .555 Exhaust Lift
• 230 Intake / 236 Exhaust Duration
• @.050-110 Degree Lobe Separation 

Ignition Timing:

• 34 Degrees Total at 3500 RPM

Also Includes:

• Aluminum Intake Manifold
• Distributor
• Holley Sniper 2 EFI System
• Valve Covers
• Oil Pan
• Timing Cover

Notes:

• Not for use in pollution-controlled vehicles.
• Engine package does not include fuel pump.
• Engine is configured to run in fuel only mode.
• The Aftermarket intake manifold installed on this engine may not be compatible with OEM accessory brackets that use intake mounted bosses.
• This engine features a true 4-inch bore, which mathematically yields 389 CID with a 3.875-inch stroke.
• 93 octane or higher is recommended for this engine.
• The performance aluminum cylinder heads on this engine feature a .500 raised port vs OEM.