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JE Pistons JG4901-3937 - Ring Sets 100 79 130.5 30.7 57.0 9.5:1 -7.6 427 TMF (For Single Piston)

JE Pistons JG4901-3937 - Ring Sets 100 79 130.5 30.7 57.0 9.5:1 -7.6 427 TMF (For Single Piston)

JE Pistons | JG4901-3937
SKU: BHXG-JG4901-3937
Regular price $49.99 USD
Regular price $54.99 USD Sale price $49.99 USD
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JE Pistons JG4901-3937 - Ring Sets 100 79 130.5 30.7 57.0 9.5:1 -7.6 427 TMF (For Single Piston)

Piston Ring Set, 1 Cyl., File Fit, 0.0472 in. Carbon Steel Nitride Top Ring, 0.0472 in. Iron Phosphate Second Ring, 0.0984 in. Carbon Steel Chrome Low Tension Oil Ring, Each.

JE Piston Rings are designed to maximize horsepower through precision sealing of combustion pressure. They are offered in a huge selection of sizes, various materials, and in multiple thicknesses to suit a wide variety of engines. JE Pistons also offers an array of custom piston ring services including back cutting, dyke cutting, lapping, grinding, and PVD coating. These services, the same used by top NHRA Pro Stock and NASCAR teams, are now available to the public and offer tremendous gains in durability, power through reduced friction, and improved ring seal.

  • Highest quality ductile iron top ring with plasma-moly inlay
  • Taper faced reverse torsional second rings
  • combined with standard or low tension oil rings
Bore Diameter: 3.937
File Fit: Yes
Top Compression Ring Thickness: 0.0472
Top Ring Facing Material: Nitride
Top Ring Material: Carbon Steel
Second Compression Ring Thickness: 0.0472
Second Ring Facing Material: Phosphate
Second Ring Material: Iron
Oil Ring Thickness: 0.098
Third Ring Facing Material: Carbon Steel
Third Ring Material: Carbon Steel
Ring Set Thickness: 0.0472 in. Top x 0.0472 in. 2nd x 0.098 in. Oil
Product Type: Engine Piston Ring Set
Industry: Automotive
Engine Type: ICE
Bore Diameter - Web: 3.937 IN / 100.00 MM
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