BluePrint Engines GM 350 C.I.D. 390 HP Long Block Crate Engines

BluePrint Engines GM 350 C.I.D. 390 HP Long Block crate engines deliver 390 hp and 410 lbs.-ft. of torque. They feature aluminum heads, hydraulic roller cam, cast iron crankshaft, hypereutectic pistons, and a compression ratio of 9.2:1. Additional specifications include: * BLOCK: NEW BluePrint Cast Iron Block Manufactured and Machined in the USA 4-Bolt Main 4.000 in. Bore 1-Piece Rear Main Seal Mech fuel pump provision: Yes Passenger Side Dipstick Drilled and tapped for clutch linkage * ROTATING ASSEMBLY: Cast Iron Crankshaft 3.480 in. Stroke Forged 5.700 in. connecting rods Hypereutectic pistons Internal Front/ External Rear engine balance * CYLINDER HEADS: BluePrint Aluminum Cylinder Heads 64cc chamber 2.02 in. intake/1.60 in. exhaust valves 195cc intake/75cc exhaust runners * CAM SPECS: Cam Type: Roller .495 Intake .502 Exhaust 220 Intake / 224 Exhaust duration @ .050 - 114 degree lobe separation * IGNITION TIMING: 32 Degrees Total at 3,500 rpm * ALSO INCLUDES: Valve covers Oil pan Timing cover Dyno test results shipped with engine 30 month / 50,000 mile warranty Show Less