422 Hellcat Stroker Kit - Displacement Increase to 6.9 Litres
Conversion kit to increase the displacement of the 6.2 litre Hellcat engine in Dodge Challenger, Charger and Durago Hellcat as well as Jeep Trackhawk and RAM TRX.
The displacement is increased to 6.9 litres (422 cubic inches).
- Forged crankshaft from Molnar Technologies, 4,000 stroke
- Forged 6,200 connecting rods from Molnar Technologies
- Coated premium bearings optional
- Mahle 2618 Forged piston
- Piston bore 4.090 (optional oversize 4.095 or 4.100)
- Coated ring lands
- Coated skirts
- Piston pin made of H13 tool steel, DLC (Diamond-Like Coated)
- Upper ring moved downwards for extra strength
- Additional cross section added to ring land between first and second compression ring for added strength
- Increased volume of accumulator groove between first and second ring for added strength (reduce pressure spikes that cause land failures)
- Addition of valve reliefs to accommodate larger cam profiles
- File fit premium rings included
Fits:
| Make | Model | Engine | Year |
| Dodge | Charger | 6.2 Hellcat | 2015 – 2023 |
| Dodge | Challenger | 6.2 Hellcat | 2015 – 2023 |
| Dodge | Durango | 6.2 Hellcat | 2021 – 2023 |
| Jeep | Grand Cherokee | 6.2 Trackhawk | 2018 – 2021 |
| RAM | 1500 | TRX | 2021 – 2023 |
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