Turbo Spec Form
True North Turbos TNT476 76MM T4
When your stock turbo is the bottleneck standing between your build and its true potential, it is time to step up to a unit built for the task — not just sourced off a shelf.
Why the TNT476 76MM T4 Turbo Belongs on Your Build
The Most Popular Size in the Range
The 76 mm compressor wheel is the size most builds land on, and for good reason — it supports roughly 1,110 to 1,230 HP while still behaving on the street. It is equally at home on LS and small-block V8 swaps, 2JZ and RB inline-six builds, Barra sixes, street/strip cars, and diesel trucks that tow heavy or pull hard.
T4 Turbine Inlet Flange
The standard T4 flange fits the vast majority of performance manifolds, making this a natural upgrade path for gas and diesel platforms already running T4-flanged exhaust manifolds — no exotic adapters required.
Built to Order by a Canadian Manufacturer
Every TNT476 is built to order by Black Sheep Industries, a Canadian manufacturer with a reputation in the North American performance community for building turbos that are not generic rebrands. You are getting a purpose-built unit, not a warehouse find.
Skip the Border Headaches
Sourcing a turbo from a US supplier means exchange rates, brokerage fees, and the uncertainty of cross-border shipping. The TNT476 ships domestically at $1,874.50 CAD, so the price you see is the price you pay — no conversion surprises, no duty grey areas.
Designed for the Conditions You Actually Drive In
Harsh winter road salt, cold starts, and demanding duty cycles are part of life across North America. This turbo is engineered by a team that understands that environment because they operate in it.
Step up to a turbo that is built with intention — the TNT476 76MM T4 is ready to be the centrepiece of your next build.
Replaces / Cross-Reference
The TNT476 is a direct bolt-on replacement for S475 and S476 turbochargers and other 76mm S400-frame units. Built on the same 400 frame, it uses the mounting hardware you already have:
- Turbine inlet: T4 — fits your existing T4 manifold
- Turbine discharge: 4.62" (117mm) half marmon — same flange and clamp
- Compressor discharge: V-band, sized to your charge pipe
- Oil drain: 50.8mm (2.00") bolt centre, 12AN port — same drain
Full model mapping: S400 replacement cross-reference. Not sure on size? What size S400 turbo do I need?
FAQ
Is the TNT476 a direct replacement for an S476?
Yes. The TNT476 is built on the 400 frame, so it is a direct bolt-on replacement for S475 and S476 turbochargers. Your manifold, downpipe flange, clamp, compressor discharge and oil drain all carry over.
Is the TNT476 only for diesel builds?
No. The TNT4R line is universal. The 76mm frame is the most widely used size across gas V8 swaps, import six-cylinder builds, street/strip cars and diesel trucks alike.
What is the TNT476 76MM T4 turbo designed for?
The TNT476 is sized for builds targeting roughly 1,110 to 1,230 horsepower — enough airflow for serious power while remaining usable on the street.
What flange does the TNT476 use?
The TNT476 uses a standard T4 turbine inlet flange, making it a natural upgrade path for gas and diesel platforms already running T4-flanged exhaust manifolds.
Who builds the TNT476?
Every TNT476 is built to order by Black Sheep Industries, a Canadian manufacturer known for building purpose-built turbos that are not generic rebrands.
What is the listed price in Canada?
The TNT476 ships domestically at $1,874.50 CAD, helping avoid exchange-rate surprises, brokerage fees, and duty grey areas associated with cross-border sourcing.
Power ratings on this page are quoted in crank horsepower (HP). Figures previously published in wheel horsepower (WHP) have been restated using our in-house tested conversion — the hardware and its capability are unchanged.
BorgWarner and S400 are trademarks of BorgWarner Inc. Black Sheep Industries Inc. and True North Turbos are not affiliated with or endorsed by BorgWarner Inc. Model designations are used for identification and fitment reference only.