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:

• Holley Sniper 550-511
• Valve Covers Black Chevrolet Logo
• Oil Pan
• Timing Cover
• Aluminum Intake Manifold
• HEI Distributor