BluePrint Engines B383KTKX SBC 383/436HP with TKX, Carbureted

This combo gives BluePrint's carbureted, 436-horsepower 383 a 5-speed TKX manual instead of an automatic, so the street-tuned stroker gets a clutch pedal. A 10.0:1 compression ratio yields 443 lb-ft of torque, fed by a Holley 750 CFM carburetor atop a dual-plane intake.

What it is built for

The camshaft and heads here match BluePrint's other street-tuned 383 builds, aimed at stronger mid-range and top-end pull rather than low-speed towing torque, but delivered through a carburetor and a manual gearbox rather than EFI or an automatic.

What to check before ordering

BluePrint fits a McLeod Super Street Pro single-disc clutch to this build. A hydraulic throwout bearing, bellhousing, and billet flywheel complete the package, geared with a close-ratio lower gear set for building rpm quickly. Check your tunnel, linkage, and pedal clearance for a five-speed conversion before ordering. This engine is intended for engine changes, not drop-in factory replacement, so California buyers should check their swap against the Bureau of Automotive Repairs policy.

Common questions

Is the compression ratio different from the EFI version? No, both run 10.0:1.

What carburetor is used? A 750 CFM Holley.

Is a transmission controller needed? No, the TKX is a mechanical manual gearbox with no electronic control module.

Does ignition come from a distributor? Yes, BluePrint includes one with the long block.