BluePrint Engines B383FKTKX SBC 383 with TKX, EFI, Pol. Pulley

BluePrint pairs the same 436-horsepower, fuel-injected 383 small-block with a 5-speed TKX manual in this combo, giving a street-tuned stroker direct gear control instead of an automatic. Its 10.0:1 compression ratio produces the same 443 lb-ft of torque found in BluePrint's automatic street 383, with the Holley Sniper 2 EFI system and polished accessory drive carried over.

What it is built for

This is the manual-transmission option for someone who wants the higher-lift, street-tuned camshaft and EFI tuning used in BluePrint's street 383 but prefers shifting it themselves. The long block includes the same aluminum heads, dual-plane intake, and EFI fuel system as the automatic street version.

What to check before ordering

The clutch is a McLeod Super Street Pro single-disc unit. A hydraulic throwout bearing, bellhousing, and billet flywheel round out the swap, along with a 2.87:1 low first gear for getting underway. Make sure your pedal box, linkage, and tunnel clearance suit a five-speed conversion before ordering. Installing this as an engine change in California falls under the Bureau of Automotive Repairs engine-change policy, so plan the paperwork accordingly.

Common questions

Does it include a flywheel? Yes, a billet flywheel sized for the TKX clutch, since this is a manual rather than automatic application.

What gear ratios does the TKX use? 2.87:1 low gear through an overdrive top gear, suited to street driving.

Is fuel delivery carbureted? No, this version uses the Holley Sniper 2 EFI system, not a carburetor.