DSS 392/ 6.4 Small Block Mopar Hemi Gen III FX Series -18cc Dish Top Gen III Hemi Forged Piston Set 4.065

DSS RACING DSS Racing
SKU #DSS-K1-6845-4065C
386 Small Block Mopar Hemi Gen III, FX 4032 Alloy, Comp Height: 1.21, -18cc Dish Top, PIN: .927, Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.72, ROD: 6.2, Includes matching DSS Racing ring set, Appox Comp Ratio: 65cc-9.65, 74cc-8.87, 85cc-8.1
SKU DSS-K1-6845-4065C
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DSS 392/ 6.4 Small Block Mopar Hemi Gen III FX Series -18cc Dish Top Gen III Hemi Forged Piston Set 4.065"

The DSS 392/ 6.4 Small Block Mopar Hemi Gen III FX Series forged piston set features a -18cc dish top design for enhanced performance in the Gen III Hemi engine. With a 4.065-inch bore size and durable construction, these pistons are ideal for high-performance builds requiring precise compression control and robust strength.

Piston Specifications

  • Piston Top: -18cc Dish Top Gen III Hemi
  • Approximate Compression Ratios:
    • 65cc Chamber: 9.65 to 1
    • 74cc Chamber: 8.87 to 1
    • 85cc Chamber: 8.1 to 1
    *For accurate compression ratio, use the compression calculator below.*
  • Engine Brand: Mopar
  • Engine Family: Small Block Mopar Hemi Gen III
  • Engine Size: 392 - 6.4

Technical Details

  • Cylinder Bore Size: 4.065 in (103.170 mm)
  • Ring Groove Width: 1.2/1.2/3MM
  • Compression Height: 1.210"
  • Pin Diameter: 0.927"
  • Connecting Rod Length: 6.200"
  • Crankshaft Stroke: 3.720"
  • Cylinder Head: Gen III Hemi
  • TDC Assembly Height: 9.270" (Zero Deck Height)

Performance & Compatibility

This piston set is designed to optimize performance for the Mopar Small Block Hemi Gen III engines, offering precision engineering for high power output and reliability. It’s ideal for custom builds and high-performance applications requiring enhanced compression and strength.

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Bore 4.065"
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