BluePrint BP38318MPFIK S/B Chevy 383 Dressed Crate Engine

Instead of a carburetor or throttle-body EFI, this 383 runs BluePrint's self-learning multi-port fuel injection with its own ECU, wired with three connections for the main battery, switched 12-volt ignition, and fuel pump, while still making the familiar 436 horsepower and 443 pound-feet, with compression unchanged at 10.0:1.

Ignition and fueling

The ECU controls both ignition timing and fuel delivery and is calibrated specifically for this engine rather than relying on a generic self-learning tune the way some aftermarket systems do. A polished chrome air cleaner, a distributor, a harmonic balancer, and a single-plane machined aluminum intake are installed, along with polished chrome valve covers and a satin aluminum water pump. A polished front drive handles the alternator, the air-conditioning compressor, the steering pump, and the water pump together.

Bottom end and heads

The cast iron block here is high-strength, with four-bolt mains and a one-piece seal at the rear; clutch-linkage holes are already drilled and tapped at the factory. Inside, a cast steel crankshaft and hypereutectic pistons are externally balanced front and rear, under aluminum heads with 64cc chambers and 2.020-inch intake, 1.600-inch exhaust valves. Spark plugs and wires are included. Coverage runs for 30 months or 50,000 miles, and California installers should work through the Bureau of Automotive Repairs' policy for this kind of swap rather than treating it as a direct replacement.