Blueprint Engines BP3961CT Small Block Chevy 396 ci. Stroker Base Engine Features:

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

Blueprint Engines BP3961CT Small Block Chevy 396 ci. Stroker Base Engine Specs:

• Block
  • New BluePrint Cast Iron Block
  • Align Honed Main Bearing Bore
  • Cylinders Honed on Computer-Controlled Machine to Within .0002 in. Straightness and Roundness
  • Cylinders are Sonic Tested for Thickness
  • 4-Bolt Main
  • 4 in. Bore
  • 1-Piece Rear Main Seal
  • Mechanical Fuel Pump Provision
  • Passenger Side Dipstick
  • Drilled and Tapped for Clutch Linkage
• Rotating Assembly
  • New BluePrint Forged Crankshaft
  • 3.875 in. Stroke
  • Forged I-beam 6 in. Connecting Rods
  • Forged Pistons
  • Internal Front/External Rear Balance
• Cylinder Heads
  • BluePrint Aluminum Cylinder Heads HP8103
  • 64 cc Chambers
  • 2.08 in. Intake/1.60 in. Exhaust Valves
  • 220 cc Intake/67 cc Exhaust Runners
• Cam Specs:
  • Hydraulic Roller
  • .544 Intake/.555 Exhaust
  • 230 Intake/236 Exhaust Duration @ .050 in.
  • 110 Degree Lobe Separation
• Ignition Timing:
  • 34 Degrees Total at 3500 RPM
• Tin Ware:
  • Valve Covers
  • Oil Pan
  • Timing Cover

Blueprint Engines BP3961CT Small Block Chevy 396 ci. Stroker Base Engine Notes:

• 93 octane or higher gasoline is recommended
• The performance aluminum cylinder heads on this engine feature a .500 in. raised port vs OEM
• A bronze distributor gear is NOT recommended

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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