426 Hemi Stroker Kit for 6.4 SRT - Displacement Increase to 7 Liters with High Compression Ratio

Conversion kit to increase the displacement of the 6.4 SRT engine.
The displacement is increased to 7 liters (426 cubic inches), high compression for naturally aspirated engines.

• Forged crankshaft from Molnar, 4,050 stroke
• Forged 6.125 connecting rods from Molnar Technologies
• Coated premium bearings optional
• Mahle M142 forged piston
  • Cabin size 4.090 (optional oversize 4.095 or 4.100)
  • Coated ring bars
  • Coated piston shirts
  • Piston pin made from H13 tool steel
  • Upper ring offset downwards for additional strength
  • Additional cross-section on the ring web between the first and second compression ring for additional strength
  • Increased volume of the storage groove between the first and second ring for additional strength (reduces pressure peaks that cause web fractures)
  • Additional valve recesses for adaptation to larger cam profiles
  • Premium piston rings (impact clearance must be adjusted)
  • Valve pockets for up to 2,200 inlet valves and 1,650 outlet valves

Compaction:

11.3:1 with original cylinder heads and original cylinder head gaskets
11.0:1 with 0.040 Cometic cylinder-head gaskets
10.8:1 with 0.054 Cometic cylinder-head gaskets

Fits: