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-K2-6845-4065C
386 Small Block Mopar Hemi Gen III, FX 2618 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-K2-6845-4065C
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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

Upgrade your Mopar 392/6.4 Hemi with DSS FX Series -18cc Dish Top Forged Pistons, designed for strength and optimized performance. Perfect for high-compression and boosted applications, these pistons offer superior durability and precise fit.

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 precise compression, use a compression calculator.*
  • 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

Engineered for the demanding performance of Gen III Hemi engines, these forged pistons deliver exceptional reliability and precision. Ideal for both naturally aspirated and boosted setups.

prop-warning
Bore 4.065"
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