BluePrint BP38321SP GM 383 Short Block Plus Crate Engine, Forged Crank

True Blue Power! BluePrints pro engine builders are enthusiasts just like you and it shows in the quality and performance of every engine they build. Each BluePrint crate engine is carefully dyno tested and ships with printed, proven results. If you’re looking serious horsepower at an affordable price, BluePrint Engines is the choice for you!GM 383 Short Block Plus Overview HP & Torque: 432 HP / 450 FT LBS Compression Ratio: 9.5:1 Forged Pistons Forged Crank Part #: BP38321SP Block4 Bolt main 4.00″ bore Passenger side dipstick Align honed main bearing bore Rotating AssemblyNew forged crankshaft, 3.75″ stroke Forged pistons, 18CC Dish Forged rods with 150,000 PSI bolts Hastings moly rings Melling high volume oil pump Hydraulic roller cam Heavy duty double roller timing set Harmonic balancer Cam SpecsCam Type: Roller, Lift with 1.6 rockers .528 Intake .536 Exhaust, 221 Intake / 226 Exhaust duration @ .050 – 110 degree lobe separation Ignition Timing34 degrees total (at 3500 RPM) Also IncludesOil pan and timing cover Brass freeze plugs Dyno tested – shipped with results NotesBore and stroke combination makes this crate engine a 377ci displacement Specifications Crate Engine Type: Short Block Engine Displacement: 383 cu. in. Horsepower: 432 horsepower Compression Ratio: 9.5:1 Torque: 450 ft./lbs. Camshaft Type: Hydraulic Roller Tappet Piston Material: Forged Aluminum Crankshaft Material: Forged Steel Camshaft Duration (.050 in): 221° intake / 226° exhaust Camshaft Lift (in): .528 intake / .536 exhaust Bore x Stroke (in): 4.000″ x 3.750″ Carburetor Included: No Intake Manifold Included: No Distributor Included: No Connecting Rod Material: Forged Steel Warranty: None Valve Covers Included: Yes Assembled: Yes Engine Balance: Internal/External Cylinder Heads Included: No Rear Main Seal Style: 1-piece Throttle Body Included: No Oil Pan Included: Yes Timing Cover Included: Yes Water Pump Included: No Harmonic Balancer Included: Yes Flexplate Included: No Flywheel Included: No Air Cleaner Included: No Spark Plugs Included: No Spark Plug Wires Included: No Computer Included: No Wiring Harness Included: No Camshaft Included: Yes Block: 4 bolt main MFG. Part #: BP38321SP Notes: Actual displacement 377 cubic inches. Horsepower numbers are with H8002K cylinder heads installed. Recommended oil for your BluePrint Crate Engine: 10W30, Non-Synthetic, Not for EGR Brand: BluePrint Engines Emissions Notice Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. In California, engine changes are legal when done in compliance with California bureau of automotive repairs (bar) engine change policy. For assistance, call bar referee at: (800) 622-7733. And see https://bar.Ca.Gov/consumer/smog_check_program/engine_changes. All customers must comply with federal epa mobile source enforcement memorandum no. 1a (and addendum) and all applicable state regulations when conducting engine changes. Improper installation and/or use of this part in California may subject the installer and/or owner to a $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and laws of all states for use of this engine change part on makes or models of vehicles that render them noncompliant with applicable state and/or federal emission laws with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine