Racetec 1001167 RaceTec Dome Piston Set Features:

• Manufactured on 2618 material (FSR box style forgings, where noted) that will accept most extreme racing applications
• CNC Precision used in every manufacturing operation
• Valve pockets machined for oversized valves and high lift cams
• Critically machined ring grooves for 1.5mm, 1.5mm, 3.0mm rings
• Top ring land gas distribution grooves to enhance performance and improve ring seal
• 927-2250-51-15C wrist pins, pin fit, wire locks, broached double pin oilers, and accumulator groove are included at no extra charge
• Diamond tooling used throughout production including ring grooves and skirts

RaceTec 1001167 Racetec Dome Piston Set Specs:

• Engine Family: 15-Degree/12-Degree GM Gen III/IV LS
• Displacement reference: 441 cu. in. (7.2L)
• Bore: 4.125 in.
• Stroke: 4.125 in.
• Rod Length: 6.125 in.
• Compression Height: 1.052 in.
• Crown Volume: 4 cc
• Piston Style: Dome
• Alloy: 2618
• Wrist Pin Diameter: 0.927 in.
• Ring Grooves: 1.5 mm Top, 1.5 mm Second, 3.0 mm Oil

RaceTec 1001167 RaceTec Dome Piston Set Notes:

• Requires RaceTec AT 4130 Ring Set or Equivalent (Sold Separately)
• Compression Ratios:
  • 13.3 @ w/68 cc Heads
  • 13 @ w/70 cc Heads
  • 12.7 @ w/72 cc Heads
• Will not work with notched cylinders
• Check rod small end dimensions before ordering