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SRP 271066 - SRP Professional Series Pistons With Rings

SRP 271066 - SRP Professional Series Pistons With Rings

SRP#867-271066

PRO SERIES 406 SBC
  • Dome Top
  • Bore: 4.155"
  • Stroke: 3.750"
  • Rod Length: 6.000"
  • Compression Distance: 1.125"
  • Dome Volume: 4cc
  • Gram Weight: 424
  • Compression Ratio: 58cc 14.0, 64cc 13.0, 70cc 12.0

    SRP 271066 - SRP Professional Series Pistons With Rings

    SRP Professional pistons include features used in professional racing such as lightweight forged side relief (FSR) forgings, high quality wrist pins, and precision CNC machined ring grooves and skirts. Additionally all Professional Series pistons include a skirt coating at no additional charge. Also, every package includes JE Pro Seal Premium Piston Rings. The included ring set features a 1.2 premium steel top ring, 1.5mm Napier (hooked face) second ring and 3.0mm standard tension oil ring. Every piston is designed and manufactured in the USA at the advanced JE/SRP Pistons manufacturing center. The piston designs were created using 3D computer modeling and tested for strength using Finite Element Analysis (FEA).

  • Advanced, lightweight FSR forging that eliminates stress concentrations for superior strength
  • Up to 20% lighter than traditional equivalent
  • High-silicon 4032 aluminum alloy for reduced piston-to-wall clearance and quiet operation
  • Accumulator grooves for improved ring seal
  • Designed for normally aspirated or moderate forced induction/nitrous applications

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