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1000763 AutoTec Forged Closed Chamber Dome Piston Set for Big Block Chevy Engines [4.155 in. Bore]
InfoVehicle Info Needed
RACETEC PISTONSPART NUMBER: 613-1000763

1000763 AutoTec Forged Closed Chamber Dome Piston Set for Big Block Chevy Engines [4.155 in. Bore]

$87300
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AutoTec Forged Piston Set
  • Big Block Chevy
  • 4.155 in. Bore
  • Forged 4032 Aluminum
  • 3.760 in. Stroke
  • 6.135 in. Rod Length
  • 1.765 in. Compression Height
  • 24 cc Crown Volume
  • 1.5 x 1.5 x 3.0 mm Ring Grooves
  • Set of 8

    Racetec 1000763 Autotec Closed Chamber 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 1.5 mm, 1.5 mm, 3.0 mm rings
    • Top ring land gas distribution groove to enhance performance and improve ring seal
    • 990-2800-51-15C wrist pins, pin fitting, wire locks, broached pin oilers, and accumulator groove are included at no extra charge
    • Diamond turned skirts

    Racetec 1000763 Autotec Closed Chamber Dome Piston Set Specs:

    • Engine Family: Big Block Chevy
    • Displacement reference: 409 cu. in. (6.7L)
    • Bore: 4.155 in.
    • Stroke: 3.760 in.
    • Rod Length: 6.135 in.
    • Compression Height: 1.765 in.
    • Crown Volume: 24 cc
    • Piston Style: Closed Chamber Dome
    • Alloy: 4032
    • Wrist Pin Diameter: 0.990 in.
    • Ring Grooves: 1.5 mm Top, 1.5 mm Second, 3.0 mm Oil

    Racetec 1000763 Autotec Closed Chamber Dome Piston Set Notes:

    • Requires RaceTec AT 4155 Ring Set or Equivalent (Sold Separately)
    • Compression Ratios:
      • 10.6 @ w/101 cc Heads
      • 10 @ w/107 cc Heads
      • 9.8 @ w/109 cc Heads
    • Part TypePiston
    BrandRACETEC PISTONS
    Package Height6.0
    Package Width12.0
    Package Length12.0
    Weight12.0 PG
    Part CategoryPerformance Parts
    Pin Lock Rings IncludedYes
    Compression Height (In)1.765
    Bore (In)4.155
    Wrist Pin StylePress or Full Floating
    QuantitySet of 8
    Piston Head Volume24cc
    Engine Make/SizeChevy Big Block
    Piston StyleClosed Chamber Dome
    Compression Ratio101cc-10.6, 107cc-10, 109cc-9.8
    Ring Thickness1.5 x 1.5 x 3.0 mm
    Piston MaterialForged 4032
    Pin Diameter (In)0.99
    Part FitmentSemi Universal
    Wrist Pin IncludedYes
    Snap Rings IncludedYes
    Vendor Part Number1000763
    Package Qty1
    Package TypeEA
    Some parts are not legal for use in California or other states with similar laws / regulations
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