BluePrint BP38318CTFV GM 383 Stroker 436HP Low Profile EFI Crate Engine

Description

Clear tight sports car hood lines with the BluePrint BP38318CTFV Crate Engine. Displacing 383 cubic inches, this small block Chevy stroker outputs 436 horsepower at 5500 RPM and 460 lb-ft torque at 4100 RPM. A specialized low profile intake manifold and compact throttle body EFI system allow Corvette and street rod owners to install stroker power beneath low hoods.

Cast iron four bolt main block architecture provides torsional stability across standard 4.000 inch cylinder bores and a 3.800 inch stroke. The reciprocating group combines a cast steel crankshaft, forged 5.700 inch connecting rods, and hypereutectic pistons yielding a 10.0:1 compression ratio. Wet sump capacity measures five quarts in a stamped steel oil pan, keeping overall dry weight pinned at 462 lbs.

Key Features of BluePrint BP38318CTFV

Buy BluePrint BP38318CTFV crate engine hardware to fit responsive electronic fuel injection beneath restricted hood envelopes. The low profile intake manifold pairs with a compact throttle body to maximize airflow without sheet metal modifications.

• Low profile dual plane intake manifold drops overall induction height for Corvette hood clearance.
• Electronic throttle body injection monitors air charge density in real time for optimal fuel mixture.
• High flow aluminum cylinder heads drop dead chassis weight while resisting hot combustion knock.
• Stroker 3.800 inch crankshaft generates 460 lb-ft torque for fierce low RPM vehicle launches.
• BluePrint BP38318CTFV valvetrain components feature hydraulic roller lifters stable past 6000 RPM.
• High energy ignition distributor outputs consistent voltage to keep spark plugs clean under load.
• Cast aluminum finned valve covers form an oil tight perimeter seal against cylinder head rails.

Dynamic Valvetrain Combustion Performance Profile

Dyno testing validates 436 brake horsepower at 5500 RPM and 460 lb-ft torque at 4100 RPM across a broad 2000 to 6000 RPM range. Cam duration spans 230 degrees intake and 236 degrees exhaust at 0.050 inch lift, with 0.544 inch intake and 0.555 inch exhaust lift. The engine draws 13 in-Hg idle vacuum at 850 RPM on 91 octane pump gas, while oil galleries maintain 50 to 65 PSI hot oil pressure.

Chassis Clearance Drivetrain Integration Specs

Low profile intake clearance drops straight into C2 and C3 Corvette engine bays without hood scoops. The external 400 balance crankshaft register bolts to weighted GM flexplates or flywheels and standard transmission bells. Compact cylinder heads clear steering shafts, while the rear sump pan avoids steering drag link contact on GM passenger cars.

Engine Break In Service Protocols

Pre prime the engine oiling channels with high zinc break in oil using an oil pump drive tool prior to startup. This stroker engine is not engineered for marine bilge setups, forced induction boost exceeding six PSI on stock ring end gaps, or unmetered nitrous oxide systems.

• Drain break in oil and replace the spin on lube filter after the first 500 operating miles.
• Perform regular motor oil changes every 3000 miles or six months with high zinc synthetic oil.
• Examine high pressure EFI fuel lines, electrical connections, and oxygen sensor fittings every 6000 street miles.

Factory Warranty Manifest Crate Contents

Protection includes a 30-Month / 50,000-Mile factory limited warranty guarding against defective components. The shipment crate contains the low profile long block, EFI throttle body, ECU wiring harness, handheld controller, distributor, spark plugs, spark wires, oil pan, valve covers, and an official dynamometer run sheet.