Racetec 1000802 AutoTec Milled Dish Piston Set Features:

• Manufactured from low-expansion, high-silicon, 4032 material with side reliefs that's excellent for street or strip applications
• CNC Precision machined ring grooves for 1/16 in., 1/16 in., 3/16 in. rings unless otherwise indicated
• Top ring land gas distribution groove to enhance performance and improve ring seal
• 1.000-2700-51-15C wrist pin, pin fitting, wire lock
• Diamond turned skirts

RaceTec 1000802 Autotec Milled Dish Piston Set Specs:

• Engine Family: AMC 390, 401
• Displacement reference: 405 cu. in. (6.6L)
• Bore: 4.185 in.
• Stroke: 3.680 in.
• Rod Length: 5.858 in.
• Compression Height: 1.500 in.
• Crown Volume: -24 cc
• Piston Style: Milled Dish
• Alloy: 4032
• Wrist Pin Diameter: 1 in.
• Ring Grooves: 1/16 in. Top, 1/16 in. Second, 3/16 in. Oil

RaceTec 1000802 AutoTec Milled Dish Piston Set Notes:

• Requires RaceTec AT 8185 Ring Set or Equivalent (Sold Separately)
• Compression Ratios:
  • 10.8 @ w/54 cc Heads
  • 10 @ w/58 cc Heads
  • 9.8 @ w/60 cc Heads