Items You Need
Block:
- 4-bolt main block
- 1-piece rear main seal
- Passenger side dipstick
- Mechanical fuel pump provision
- Drilled and tapped for clutch linkage
- Brass freeze plugs
- Square and parallel decked
- Align honed main bearing bore
- Sonic tested cylinders for thickness
- Cylinders honed on a computer-controlled machine to within .0002 in. straightness and roundness
Rotating Assembly:
- New cast 3.750 in. stroke crankshaft
- Chevy OEM 5.700 in. rods with 150,000 PSI bolts
- Hypereutectic pistons; 9.0 to 1 Compression
- External front & external rear balance
Cylinder Heads:
- Blueprint Aluminum Cylinder Heads (p/n 138-H8002K)
- 195 cc Intake Runner Volume
- 75 cc Exhaust Runner Volume
- 2.020 in.Swirl Polished Intake Valves
- 1.600 in. Swirl Polished Exhaust Valves
- Hardened Retainers and 1.437 in. Diameter Dual Valve Springs
- Straight Spark Plug Configuration
- .750 in. reach gasket spark plug
Camshaft Specs:
- Hydraulic Roller
- Duration @ .050 in. Lift: 221 Intake / 226 Exhaust
- 110 degree LSA
- Lift: .528 in. Intake / .536 in. Exhaust
Dress Model Adds:
- Holley 750 cfm Manual Choke Vacuum Secondary Zinc Carburetor - 510-0-3310S
- HEI distributor
- Performance aluminum dual-plane satin intake manifold (Will not clear stock Corvette hood)
- Chrome valve covers
Note: Your BluePrint engine was dyno tested with the parts and specifications listed below. If you prefer to install a different part, your engine may not produce the horsepower recorded on your dyno sheet. Not for use in pollution controlled vehicles
- Fuel Delivery Type: Carbureted, 750cfm
- Spark Plug: Champion 792
- Spark Plug Gap: 0.045 in.
- Harmonic Balancer: 400 ci weighted, 8 in. diameter
- Flexplate/Flywheel: Late 350 Weighted (1987-Up)
- Fuel Recommendation: 87 Octane
- Stall Converter: 2000 RPM
- Timing: 10-16 degrees initial, 34 degrees total at 3500 RPM
- Firing Order: 1-8-4-3-6-5-7-2
Engine Break-In Procedure
Use or break-in oil or conventional (non-synthetic) multi-viscosity oil with zinc additive for the first 500 miles of operation. Avoid hard acceleration for sustained periods. Periodically change the engine speed while driving to help seat the rings. While the engine is running, be sure to check oil pressure and coolant temperature, and check for fluid leaks, such as oil, transmission fluid, fuel, and coolant/antifreeze. Also listen for any unusual sounds. Should you hear an unusual sound, shut the engine off, check for the source, and correct it.
Engines with flat tappet cams only - Start the engine and bring it to 2,000 RPM. Get the engine running smoothly. Then vary the engine speed from 1,800-2,200 RPM in a slow acceleration/deceleration cycle for 30 minutes. This is necessary to provide adequate oil splash and lifter rotation to properly mate each lifter to its lobe.
At 500 Miles change the engine oil and filter using conventional (non-synthetic) oil. After 6,000 miles, synthetic oils can be used in your engine. For flat tappet cam engines, continued use of oil with zinc or a zinc additive for the life of your engine is recommended.
Specifications:
I have a 94 GMC SLT edition and the engine is stock 4.3 V6 vortec and wondering would this fit in the engine bay and have it as a daily driver.(I hate this spider injector)
Will it fit a 1973 C3 Corvette L48?
Would this engine fit my 1977 Pontiac Phoenix
Will this engine work in my 1995 k 1500
I’m already set up with a small block 350 with efi sniper . Can the 383 be ran on the same application by simply changing the values
What kind of oil should I use? Where can I get a fuel pump rod and plate for a manual fuel pump?
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.