DSS 5.7 Small Block Mopar Hemi Gen III FX Series -12cc Dish Top Gen III Hemi Forged Piston Set 3.947

DSS RACING DSS Racing
SKU #DSS-K1-6723-3947
350 Small Block Mopar Hemi Gen III, FX 4032 Alloy, Comp Height: 1.21, -12cc Dish 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-9.43, 74cc-8.62, 85cc-7.83
SKU DSS-K1-6723-3947
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DSS 5.7 Small Block Mopar Hemi Gen III FX Series -12cc Dish Top Gen III Hemi Forged Piston Set 3.947

The DSS 5.7 Small Block Mopar Hemi Gen III FX Series -12cc Dish Top Forged Piston Set is designed to maximize performance and durability for your Mopar engine. These high-quality pistons offer enhanced strength and are built to withstand the extreme demands of high-performance applications.

Piston Specifications

  • Piston Top: -12cc Dish Top Gen III Hemi
  • Approximate Compression Ratios:
    • 65cc Chamber: 9.43 to 1
    • 74cc Chamber: 8.62 to 1
    • 85cc Chamber: 7.83 to 1
    *For accurate compression ratio, use the compression calculator for precise adjustments.*
  • Engine Compatibility: Mopar Small Block Hemi Gen III
  • Engine Size: 5.7L

Technical Details

  • 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

Designed specifically for the Mopar Small Block Hemi Gen III engines, this piston set is engineered to offer maximum durability, precision, and performance in your high-performance build. Ideal for those looking to push their engine to the limit with reliable and efficient power delivery.

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Bore 3.947"
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