Racetec 1000472 AutoTec Inverted Dome/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 1.5mm, 1.5mm, 3.0mm rings
• Top ring land gas distribution groove to enhance performance and improve ring seal
• 912-2700-51-15C wrist pins or 927-2700-51-15C, pin fit, wire locks, broached pin oilers and accumulator grooves are included at no extra charge
• Diamond turned skirts

RaceTec 1000472 Autotec Inverted Dome/Milled Dish Piston Set Specs:

• Engine Family: 20-Degree Small Block Ford 351W
• Displacement reference: 355 cu. in. (5.8L)
• Bore: 4.020 in.
• Stroke: 3.500 in.
• Rod Length: 5.956 in.
• Compression Height: 1.770 in.
• Crown Volume: -21.7 cc
• Piston Style: Inverted Dome/Milled Dish
• Alloy: 4032
• Wrist Pin Diameter: 0.912 in.
• Ring Grooves: 1.5 mm Top, 1.5 mm Second, 3.0 mm Oil

RaceTec 1000472 AutoTec Inverted Dome/Milled Dish Piston Set Notes:

• Requires RaceTec AT 4025 Ring Set or Equivalent (Sold Separately)
• Compression Ratios:
  • 9.6 @ w/54 cc Heads
  • 9 @ w/60 cc Heads
  • 8.3 @ w/68 cc Heads