This BluePrint Engines 383 cubic inch GM small block crate engine is a base dressed, carbureted build rated at 436 horsepower and 443 lb-ft of torque. It uses a cast iron 4-bolt main block with a 3.750 in stroke crankshaft, a hydraulic roller cam, and BluePrint aluminum heads, and it comes with a Holley Classic 750 CFM carburetor on a dual plane aluminum intake with an HEI distributor.
Specifications:
- Displacement: 383 c.i.
- 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, manufactured and machined in the USA, 4-bolt main, 1-piece rear main seal, mechanical fuel pump provision, passenger-side dipstick, drilled and tapped for clutch linkage
- Crankshaft: Cast, 3.750 in stroke
- Connecting rods: OEM type, 5.700 in, with 150,000 PSI bolts
- Pistons: Hypereutectic
- Cylinder heads: BluePrint performance aluminum H8002K, 64cc chamber, 2.02 in swirl polished intake valves, 1.60 in swirl polished exhaust valves, hardened retainers and springs, .500 raised port versus OEM
- Camshaft: Hydraulic roller, .544 in intake / .555 in exhaust lift, 230/236 duration at .050, 110 deg LSA
- Induction: Carbureted: Holley Classic 750 CFM carburetor on a dual plane aluminum intake
- Balance: Externally balanced front and rear
- Ignition timing: Initial 10-16 degrees, total 32-34 degrees at 3500 RPM
- Fuel: 91+ octane
- Part number: BP38318CTC1
What's Included: This is a base dressed, carbureted engine. BluePrint itemizes the following: Holley Classic 750 CFM carburetor (no BPP part number shown on the BluePrint page), dual plane satin aluminum intake manifold (BPP350VINT), BluePrint passenger side dipstick (BPP9420), BluePrint logo valve covers (BPP9518), HEI ready run distributor (BPP350RBK), high volume oil pump, painted oil pan, and timing cover.
Engine Platform: Built to the GM small block (SBC) platform. BluePrint notes that a true 4.000 in bore with a 3.750 in stroke mathematically yields 377 c.i., and that the installed aftermarket intake may not be compatible with OEM accessory brackets that use intake mounted bosses. BluePrint recommends electric fans producing 3000 cfm or more for engines 400 c.i. or less.
Compliance: BluePrint states 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 comes on the BP38318CTC1 base dressed engine?
BluePrint itemizes a Holley Classic 750 CFM carburetor, a dual plane satin aluminum intake manifold (BPP350VINT), a passenger side dipstick (BPP9420), BluePrint logo valve covers (BPP9518), an HEI ready run distributor (BPP350RBK), a high volume oil pump, a painted oil pan, and a timing cover.
How much power does it make?
It is rated at 436 horsepower and 443 lb-ft of torque.
What carburetor is on it?
A Holley Classic 750 CFM carburetor with a manual choke, on a dual plane aluminum intake. BluePrint does not show a BPP part number for the carburetor.
What octane does it require?
It is a 10.0:1 engine that BluePrint lists for 91+ octane fuel.
Does it include a water pump or harmonic balancer?
Neither is itemized for this base dressed variant. BluePrint lists a balancer (BPP400L) only as a related product, so plan to source those items separately.
