ROSS 99809 Forged Piston Set Stealth 93MM

( Brand: Ross ), ( Manufacturer Part Number: 99809 ), ( Type: Piston ), ( Items Included: Piston Rings ), ( Piston Diameter: 93mm )

Review ROSS Forged Piston Set 93mm Mitsubishi And Dodge Stealth fits 3000GT

The **Ross 99809 Forged Piston Set (93mm) for Mitsubishi 3000GT and Dodge Stealth** is a high-performance, precision-engineered component designed to elevate the power, reliability, and longevity of your naturally aspirated or mild turbocharged 6G72 or 6G73 V6 engine. Crafted from **7075-T6 aluminum**, a material renowned for its exceptional strength-to-weight ratio, these pistons are not only lighter than traditional cast pistons but also significantly more resistant to warping and thermal stress, making them ideal for high-revving applications where durability and performance are critical. The **93mm bore** dimension ensures a perfect fit for the stock Mitsubishi 3000GT and Dodge Stealth engines, allowing for a slight increase in displacement when paired with oversized rings or a larger bore kit, while maintaining compatibility with stock crankshafts and connecting rods. Each piston is **forged with precision**, featuring a **dished crown design** optimized for efficient combustion and reduced piston-to-valve clearance, which is particularly beneficial for engines running higher compression ratios or forced induction. The **welded ring carrier** construction provides superior strength and stability, reducing the risk of ring rotation or breakage under heavy loads, while the **honed ring lands** ensure a smooth, consistent seal with the cylinder walls, minimizing oil consumption and maximizing compression efficiency. Whether you're chasing more horsepower through a turbocharged setup, a supercharger, or simply pushing the limits of your naturally aspirated engine, these pistons deliver the structural integrity and performance gains needed to handle the increased stress. Backed by Ross Engineering s reputation for quality and reliability, this piston set is a trusted choice for enthusiasts and professional tuners looking to enhance their engine s power output without compromising on durability. Perfect for both street and track applications, the **Ross 99809 Forged Piston Set** is a premium upgrade that transforms your engine into a more robust and high-revving powerhouse.

### **Pros and Cons of buying a Ross 99809 Forged Piston Set (93mm, Mitsubishi 3000GT / Dodge Stealth)**

1. **Enhanced Performance** The 93mm forged pistons increase displacement from the stock 3.0L to approximately 3.2L 3.3L, improving horsepower and torque. This is particularly beneficial for naturally aspirated applications, offering noticeable power gains without requiring major engine modifications.

2. **Durability and Strength** Forged pistons are significantly stronger than cast pistons, reducing the risk of catastrophic failure under high stress. They can handle higher compression ratios and more aggressive camshafts, making them ideal for forced induction builds (turbo/supercharger) or high-RPM applications.

3. **Compatibility** Designed specifically for the Mitsubishi 3.0L 6G72 engine (used in the 3000GT and Dodge Stealth), these pistons fit stock crankshafts and rods, requiring minimal additional modifications. The 93mm stroke is a popular upgrade for this engine family, balancing power gains with reliability.

4. **Aftermarket Support** The 6G72 engine has a strong aftermarket presence, meaning you ll find supporting parts like rings, bearings, and gaskets readily available. This makes the build process smoother and reduces the risk of sourcing hard-to-find components.

5. **Potential for Future Mods** Upgrading to forged pistons now can future-proof your engine for bigger camshafts, higher compression, or forced induction. Many owners use this as a stepping stone to more aggressive builds later.

6. **Better Heat Dissipation** Forged pistons conduct heat more efficiently than cast pistons, which can help prevent overheating in high-performance applications.

7. **Reduced Risk of Rod Bending** Since forged pistons are more uniform in weight distribution, they reduce the stress on connecting rods, lowering the chance of rod failure under heavy loads.

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1. **Cost** Forged pistons are significantly more expensive than cast alternatives. A full set (including rings, bearings, and gaskets) can cost several hundred dollars, which may be a substantial investment for a naturally aspirated build.

2. **Engine Modifications Required** While the pistons fit stock components, you ll need to address other parts of the engine to safely run them:

- **Rod Bolts:** Stock rod bolts may not be sufficient for higher power levels; aftermarket bolts (e.g., ARP or EBC) are recommended.

- **Crankshaft:** Some owners opt for a balanced or upgraded crankshaft to handle the increased stress.

- **Rod Bearings:** High-performance bearings (e.g., Clevite or JE) are advised to support the extra load.

- **Valvetrain:** If pushing for more power, you may need upgraded valvesprings, retainers, and possibly a stronger camshaft.

3. **Potential for Overbuilding** If your primary goal is mild power gains (e.g., 20 30 HP) without forced induction, the cost of forged pistons may not be justified. A simpler upgrade like a performance camshaft or intake manifold could achieve similar results at a fraction of the cost.

4. **Learning Curve** Installing forged pistons requires precision, especially when breaking in the engine. Improper installation (e.g., incorrect gap settings, improper lubrication) can lead to premature wear or failure.

5. **Breaking-In Process** Forged pistons require a careful break-in procedure to ensure proper oil adhesion and minimize wear. This involves controlled RPM limits, avoiding full throttle for the first 100 200 miles, and using high-quality oil.

6. **Limited Stock Compatibility** While the pistons fit stock components, you ll likely need to upgrade other parts (e.g., oil pump, timing chain) to safely handle the increased power. This adds to the overall cost and complexity of the build.

7. **Potential for Voiding Warranty** If your vehicle is still under manufacturer warranty, installing aftermarket forged pistons may void coverage, especially if the engine is modified beyond stock specifications.

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The Ross 99809 forged piston set is an excellent choice for owners of the Mitsubishi 3000GT or Dodge Stealth looking to significantly increase power while maintaining reliability. The 93mm upgrade offers a substantial boost in displacement and performance, making it ideal for both naturally aspirated and forced induction builds. However, the cost and additional modifications required mean it s best suited for those planning a more aggressive engine project rather than a simple tune-up.

If your goal is **moderate power gains (e.g., 10 20 HP) without major modifications**, a forged piston set may be overkill. In that case, focusing on simpler upgrades like a performance camshaft, intake, or exhaust could be more cost-effective. But if you re committed to **serious power increases, durability, and future-proofing your engine**, the Ross forged pistons are a strong investment.

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- You re planning a **forced induction (turbo/supercharger) build** or a **high-RPM naturally aspirated setup**.

- You want to **increase displacement significantly** (3.2L 3.3L) for noticeable power gains.

- You re prepared to **budget for supporting modifications** (rod bolts, bearings, valvetrain, etc.).

- You want **long-term reliability** and plan to push the engine hard in the future.

- You re only looking for **mild power improvements** (under 20 HP) and can achieve them with simpler, cheaper mods.

- You re **not comfortable with engine modifications** or the break-in process.

- Your budget is limited, and you d rather allocate funds to other performance upgrades (e.g., intake, exhaust, ECU tuning).

- You re unsure about the **long-term commitment** to maintaining a modified engine.

**Final Verdict:** For the right project, the Ross 99809 forged pistons are a **high-quality, performance-enhancing upgrade** that pays off in durability and power. However, they re not a "quick fix" and require careful planning and execution. If you re serious about maximizing your 6G72 engine s potential, they re a worthwhile investment.

Details:

93mm Ross Racing forged aluminum pistons for the Mitsubishi 3000GT and Dodge Stealth. These are setup for 8.3:1 compression ratio. They include new Total Seal piston ring set, wrist pins, and pin locks. These pistons also fit a 6G74 engine block as well the 6G72.

part #: 99809 price

• $750.00

specifications pistonringro:

• for models: 3000gt
• for makes: Mitsubishi, Dodge
• brand: Ross
• mpn: 99809
• type: Piston
• items included: Piston Rings
• piston diameter: 93mm

seller pistonringro:

• # reviews: 422
• rating: 100.0%
• city: Mill Spring, North Carolina

returns pistonringro:

• policy: No Returns

general pistonringro:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Pistons Rings

shipping pistonringro:

• service: UPS Ground, USPS Ground Advantage
• transit: 3-9 Days
• carrier: UPS, USPS
• type: Fixed
• class: Standard
• cost: $0.00

offer pistonringro:

• sold: 0
• started: May 5, 2026
• options: Ship-to-home
• availability: In Stock
• quantity: 1

payments pistonringro:

• wallet: Paypal
• other
• credit card: Visa

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