Mitsubishi 3000GT

What are the best performance parts for a Mitsubishi 3000GT? The 3000GT — and its Dodge Stealth twin — is a 1990s grand tourer that rewards careful maintenance and well-chosen upgrades, from engine bearings and head gaskets to brakes and suspension. With parts from King Engine Bearings, PowerStop, South Bend Clutch, and more, you can keep a 6G74 or twin-turbo VR-4 healthy or push it further — check your year and model before ordering.

These cars are now well into classic territory, which makes the wear parts the most important ones: rod and main bearings for the 6G74 V6, head gaskets that seal high-mileage blocks, and brake components that restore stopping power the factory systems have long since lost. Beyond maintenance, the 3000GT responds well to the same upgrade paths as any performance platform — better brake pads and rotors, firmer suspension, freer-flowing intake and exhaust, and fuel system support for modified power levels.

King Engine Bearings is the name engine builders reach for when a bottom end needs to survive — their performance rod bearing sets for the 6G74 in this collection come in standard and undersizes (0.25 through 1.0) so a reground crank can be brought back to spec. PowerStop specializes in brake upgrades for daily drivers and enthusiasts alike, and their Z23 Evolution Sport brake kits for the 3000GT pair drilled and slotted rotors with performance pads for stronger, more fade-resistant stopping. South Bend Clutch builds clutches that hold modified power without the drivability penalties of a full race setup — important on a heavy GT car that still sees street miles. Cometic is known for multi-layer steel head gaskets that seal reliably on forced-induction and high-compression builds, and Fuel Injector Clinic supplies flow-matched injectors for owners adding power beyond what the stock fuel system can feed.

Shop by category with our King Engine Bearings, Big Brake Kits, and Connecting Rods collections, plus fellow Mitsubishi platforms like Mitsubishi. Start with the King 6G74 rod bearing set for a bottom-end refresh or the PowerStop Z23 brake kit for stronger stopping — and see our guide to the Top 5 Brake Systems for Sports Cars.

Will these parts fit both the 3000GT and the Dodge Stealth?

Yes — the 3000GT and Dodge Stealth share platforms and most mechanical components, so engine parts like the King rod bearings listed here fit both. Always check your year and model, since trim-level differences exist.

What size bearings do I need for my 6G74?

It depends on whether your crankshaft is standard or has been reground — measure with a micrometer or plastigauge, then order the matching standard or undersize set. When in doubt, have your machine shop spec it.

Are drilled and slotted rotors worth it on a street 3000GT?

They improve bite and heat shedding over worn factory rotors, and kits like PowerStop's Z23 bundle them with matched pads so the whole system works together. They are a maintenance upgrade first, a performance upgrade second.

Do I need bigger injectors for a bolt-on 3000GT?

For a stock or lightly modified car, the factory injectors are usually fine. Upgraded injectors from brands like Fuel Injector Clinic become necessary when you add forced-induction upgrades or a tune that pushes fuel demand past stock capacity.