This is a BluePrint Engines 383 cubic inch GM small block crate engine, built as a long block, rated at 436 horsepower and 443 lb-ft of torque. It combines a cast iron block, cast crankshaft, OEM-type rods, hypereutectic pistons, a hydraulic roller cam, and BluePrint aluminum cylinder heads at 10.0:1 compression, and is supplied without induction or accessories so the buyer can choose a fuel system. Every BluePrint crate engine is dyno tested and ships with a dyno printout.
Specifications:
- Displacement: 383 c.i. (BluePrint designation)
- Horsepower: 436 HP
- Torque: 443 lb-ft
- Bore: 4.000 in
- Stroke: 3.750 in
- Compression ratio: 10.0:1
- 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: Cast, 3.750 in stroke
- Connecting rods: OEM-type 5.700 in with 150,000 PSI bolts
- Pistons: Hypereutectic, dish, 12cc
- Cylinder heads: BluePrint aluminum H8002K, 64cc chamber, 2.02 in intake / 1.60 in exhaust valves, 195cc intake / 75cc exhaust runners
- Camshaft: Hydraulic roller, .544 in intake / .555 in exhaust lift, 230/236 duration at .050, 110 deg LSA
- Configuration: Long block (no induction)
- Balance: Externally balanced front and rear
- Fuel: 91+ octane
- Part number: BP38318CT1
What's Included: Long block assembly with BluePrint aluminum heads and hydraulic roller cam. Also includes BluePrint logo valve covers (BPP9518), dipstick (BPP9420), high-volume oil pump, timing cover, and oil pan. A harmonic balancer is not part of the included list, and 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. 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 BP38318CT1 long block?
It is a long block: the assembled block, rotating assembly, aluminum cylinder heads, and hydraulic roller cam, plus valve covers, dipstick, a high-volume oil pump, timing cover, and oil pan. It does not include a harmonic balancer, intake, carburetor or EFI, distributor, or accessories.
How much power does this 383 make?
BluePrint rates the 383 at 436 horsepower and 443 lb-ft of torque, and each engine ships with a dyno printout. BluePrint notes that horsepower and torque vary with the fuel system installed.
What fuel does it require?
BluePrint lists 91 octane or higher for this 10.0:1 compression engine.
Is it internally or externally balanced?
It is externally balanced at both the front and the rear, so it needs a matching externally balanced harmonic balancer and flywheel or flex plate.
What does BluePrint list as accessories for this 383?
BluePrint's accessory list for this engine includes harmonic balancer BPP400L, break-in oil BPP710, 10W-30 oil BPP10W30, and a Holley 750 CFM carburetor BPP080508S, among other parts.
