This is a BluePrint Engines 383 cubic inch GM small block Power Adder crate engine, built as a long block, rated at 415 horsepower and 430 lb-ft of torque. It is a forced-induction oriented build using a forged steel dual-keyway crankshaft, forged I-beam rods, forged pistons, and BluePrint aluminum cylinder heads at a lower 8.9:1 compression ratio, and it is supplied without induction or accessories. Every BluePrint crate engine is dyno tested and ships with a dyno printout.
Specifications:
- Displacement: 383 c.i. (BluePrint designation)
- Horsepower: 415 HP
- Torque: 430 lb-ft
- Bore: 4.000 in
- Stroke: 3.750 in
- Compression ratio: 8.9:1
- Block: High-strength cast iron, 4-bolt main, 1-piece rear main seal, mechanical fuel pump provision, drilled and tapped for clutch linkage, passenger-side dipstick
- Crankshaft: Forged steel, 3.750 in stroke, dual keyway
- Connecting rods: Forged I-beam 5.700 in
- Pistons: Forged (4032)
- Cylinder heads: BluePrint aluminum H8002K, 64cc chamber, 2.02 in intake / 1.60 in exhaust valves, 195cc intake / 75cc exhaust runners
- Camshaft: Hydraulic roller, .536 in intake / .555 in exhaust lift, 224/236 duration at .050, 113 deg lobe separation
- Configuration: Long block, Power Adder engine (no induction)
- Balance: Internally balanced front, externally balanced rear
- Fuel: 87+ octane
- Part number: BP38317CT1
What's Included: Long block assembly with BluePrint aluminum heads and hydraulic roller cam, built with a dual keyway crank and a passenger-side dipstick. Also includes BluePrint logo valve covers (BPP9518), dipstick (BPP9420), harmonic balancer, timing cover, oil pump, and oil pan. Carburetor or EFI, intake, ignition, and front accessories are not included on the long block.
Engine Platform: Built to the GM small block (SBC) platform as a Power Adder engine, intended for nitrous, supercharger, or turbo applications. BluePrint notes this engine is not for EGR.
Prop 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information visit www.P65Warnings.ca.gov.
FAQ
What is included with the BP38317CT1 long block?
It is a long block: the assembled block, forged rotating assembly, aluminum cylinder heads, and hydraulic roller cam, plus valve covers, dipstick, harmonic balancer, timing cover, oil pump, and oil pan. It does not include an intake, carburetor or EFI, distributor, or accessories.
What is a Power Adder engine?
BluePrint builds this 383 for power-adder use, meaning nitrous, supercharger, or turbo. It uses a forged crankshaft, forged I-beam rods, forged pistons, and 8.9:1 compression to suit boosted combinations.
How much power does this 383 make?
It is rated at 415 horsepower and 430 lb-ft of torque, and each engine ships with a dyno printout of its tested results.
What fuel does it require?
BluePrint lists 87 octane or higher for this 8.9:1 engine.
Is it internally or externally balanced?
It is internally balanced at the front and externally balanced at the rear, so match the flywheel or flex plate accordingly.
