DSS E Series Forged Pistons Flat, 4.000 in. Bore Ford


  • Forged from Wear Resistant 4032 Alloy
  • Substantially Stronger than Hypereutectic Type Cast Pistons
  • Fully Machined Piston Crown
  • Light Weight Design
  • Precision CNC Finished Pin Bores
  • Heavy-duty Piston Pins.
  • Full-Floating or Press fit.
  • Double True Arc Pin Locks Provide Redundancy
  • Forged Oil Drain-Back Window’s
  • Forged side reliefs.
  • Fully CNC Machined Top with Double valve notches.
  • Diamond-turned Skirts.
  • Forged and Machined in Saint Charles Illinois USA!
  • Boost and NOS Ready! (Mild Levels)




SKU: 8750-4000 Categories: , ,


Piston Rings Included: No
Bore (in.): 4.000 in.
Bore (mm): 101.600mm
Stroke: 3.500 in.
Engine Stroke Type: Stock
Rod Length: 5.956 in.
Piston Style: Flat top, with two valve reliefs
Piston Material: Forged aluminum
Compression Height (in.): 1.770 in.
Piston Head Volume (cc): +3.00cc
Wrist Pin Style: Press-fit or floating
Wrist Pin Retainers Included: Yes
Wrist Pin Included: Yes
Pin Diameter (in.): 0.912 in.
Piston Ring Thickness: 5/64 in. x 5/64 in. x 3/16 in.
File Fit: No
Gapless: No
Quantity: Sold as a set of 8.

D.S.S. E Series Forged Pistons

D.S.S. E Series forged pistons are fully forged and machined from a 4032 alloy material with precision-honed piston pin bores and include heavy-duty piston pins. The pistons are full-floating or press-fit compatible and use double true arc pin locks, forged oil drainbacks, double valve notches, and diamond turned piston skirts. Get high-quality pistons at a great price–try a set of D.S.S. E Series forged pistons today!

Additional information

Shipping Weight 14 lbs
Shipping Dimensions 26 × 6 × 12 in
Car Make


Part Type



DSS Racing


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