GM Small Block Compatible 396 c.i. Engine – 491 Horsepower – Base Dressed – Carbureted

Description:

• Horsepower & Torque: 491 Horsepower / 509 ft. lbs. Torque
• Compression Ratio: 10.4:1
• BluePrint Engines Aluminum Heads
• BluePrint Engines Hydraulic Roller Cam
• BluePrint Engines Forged Crank
• BluePrint Engines Forged Pistons

Block:

• BluePrint Engines High Strength Cast Iron Block
• Manufactured and Machined in the USA!
• Cylinders are Sonic Tested for Thickness
• Drilled and Tapped for Clutch Linkage
• Align Honed Main Bearing Bore
• Mech Fuel Pump Provision: Yes
• Passenger Side Dipstick
• 1-Piece Rear Main Seal
• 4-Bolt Main
• 4.000″ Bore
• Cylinders Honed on Computer-Controlled Machine to Within .0002 Straightness and Roundness

Rotating Assembly:

• 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:

• Hydraulic 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:

• Holley 850cfm Double Pumper Carburetor – BPP04781S
• Aluminum Intake Manifold – BPP350VINT
• HEI Ready Run Distributor – BPP350RBK
• Valve Covers – BPP9518
• Dipstick – BPP9420
• Timing Cover
• Oil Pan

Notes: 

• Not for use in pollution-controlled vehicles.
• 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.