Racetec 1001175 RaceTec Flat Top 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
• 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
• Top ring land gas distribution grooves to enhance performance and improve ring seal
• Dyno tested and race track proven designs

RaceTec 1001175 Racetec Flat Top Piston Set Specs:

• Engine Family: GM Gen IV LS7
• Displacement reference: 429 cu. in. (7.0L)
• Bore: 4.130 in.
• Stroke: 4 in.
• Rod Length: 6.125 in.
• Compression Height: 1.115 in.
• Crown Volume: -4.1 cc
• Piston Style: Flat Top w/2 Valve Reliefs
• Alloy: 2618
• Wrist Pin Diameter: 0.927 in.
• Ring Grooves: 1.5 mm Top, 1.5 mm Second, 3.0 mm Oil

RaceTec 1001175 RaceTec Flat Top Piston Set Notes:

• Requires RaceTec AT 4135 Ring Set or Equivalent (Sold Separately)
• Compression Ratios:
  • 11.8 @ w/68 cc Heads
  • 11.5 @ w/70 cc Heads
  • 11.3 @ w/72 cc Heads