Racetec 1000417 AutoTec Dome 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 or 927-2700-51-15C wrist pins, pin fit, wire locks, broached pin oilers and accumulator grooves are included at no extra charge
• Diamond turned skirts

RaceTec 1000417 Autotec Dome Piston Set Specs:

• Engine Family: 20-Degree Small Block Ford 302
• Displacement reference: 307 cu. in. (5.0L)
• Bore: 4.040 in.
• Stroke: 3 in.
• Rod Length: 5.090 in.
• Compression Height: 1.600 in.
• Crown Volume: 11.1 cc
• Piston Style: Dome
• Alloy: 4032
• Wrist Pin Diameter: 0.990 in.
• Ring Grooves: 1.5 mm Top, 1.5 mm Second, 3.0 mm Oil

RaceTec 1000417 AutoTec Dome Piston Set Notes:

• Requires RaceTec AT 4040 Ring Set or Equivalent (Sold Separately)
• Compression Ratios:
  • 13.1 @ w/54 cc Heads
  • 11.9 @ w/60 cc Heads
  • 11.1 @ w/64 cc Heads