DSS 5.7 Small Block Mopar Hemi Gen III FX Series -1.5cc Flat Top Gen III Hemi Forged Piston Set 3.947

DSS RACING DSS Racing
SKU #DSS-K1-6720-3947
350 Small Block Mopar Hemi Gen III, FX 4032 Alloy, Comp Height: 1.21, -1.5cc Flat Top, PIN: .945, Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.578, ROD: 6.243, Includes matching DSS Racing ring set, Appox Comp Ratio: 65cc-10.55, 74cc-9.53, 85cc-8.54
SKU DSS-K1-6720-3947
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DSS 5.7 Small Block Mopar Hemi Gen III FX Series -1.5cc Flat Top Gen III Hemi Forged Piston Set 3.947"

Designed for high-performance builds, this DSS 5.7 Small Block Mopar Hemi Gen III FX Series Forged Piston Set offers exceptional durability and precision. With a -1.5cc flat top design, these pistons are engineered for both street and track use, providing excellent performance and reliability for your Gen III Mopar Hemi engine.

Piston Top Approximate Compression Ratio

  • -1.5cc Flat Top Gen III Hemi
    • 65cc Chamber: 10.55 to 1
    • 74cc Chamber: 9.53 to 1
    • 85cc Chamber: 8.54 to 1
    *For accurate compression ratio information, use the calculator below.*

Engine Specifications

  • Engine Brand: Mopar
  • Engine Family: Small Block Mopar Hemi Gen III
  • Engine Size: 5.7L
  • Cylinder Bore Size: 3.947 in (100.175 mm)
  • Ring Groove Width: 1.2/1.2/3MM
  • Compression Height: 1.210"
  • Pin Diameter: 0.945"
  • Connecting Rod Length: 6.243"
  • Crankshaft Stroke: 3.578"
  • Cylinder Head: Gen III Hemi
  • TDC Assembly Height: 9.242" (Zero Deck Height)

Performance & Compatibility

This piston set is designed to optimize your engine's performance with a focus on strength and durability. The -1.5cc flat top design enhances compression ratios for more efficient combustion, making it a great choice for both street and race applications.

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