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1000571 AutoTec Forged Flat Top Piston Set for Big Block Chrysler 383, 440 Engines [4.375 in. Bore]
InfoVehicle Info Needed
RACETEC PISTONSPART NUMBER: 613-1000571

1000571 AutoTec Forged Flat Top Piston Set for Big Block Chrysler 383, 440 Engines [4.375 in. Bore]

$79900
ShippingShips on 12/14/2026
Lowest PriceLowest Price Guarantee

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AutoTec Forged Piston Set
  • BB Chrysler 383, 440
  • 4.375 in. Bore
  • Forged 4032 Aluminum
  • 4.250 in. Stroke
  • 7.100 in. Rod Length
  • 1.480 in. Compression Height
  • -6.7 cc Crown Volume
  • 1/16 x 1/16 x 3/16 in. Ring Grooves
  • Set of 8

    Racetec 1000571 AutoTec Flat Top 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 1/16 in., 1/16 in., 3/16 in. rings
    • Top ring land gas distribution groove to enhance performance and improve ring seal
    • 1.094-2800-51-15C wrist pins or 990-2800-51-15C wrist pins, pin fitting, wire locks, broached pin oilers and accumulator grooves are included at no extra
    • charge
    • Diamond turned skirts

    RaceTec 1000571 Autotec Flat Top Piston Set Specs:

    • Engine Family: Big Block Chrysler 383, 440
    • Displacement reference: 511 cu. in. (8.4L)
    • Bore: 4.375 in.
    • Stroke: 4.250 in.
    • Rod Length: 7.100 in.
    • Compression Height: 1.480 in.
    • Crown Volume: -6.7 cc
    • Piston Style: Flat Top w/2 Valve Reliefs
    • Alloy: 4032
    • Wrist Pin Diameter: 0.990 in.
    • Ring Grooves: 1/16 in. Top, 1/16 in. Second, 3/16 in. Oil

    RaceTec 1000571 AutoTec Flat Top Piston Set Notes:

    • Compression Ratios:
      • 13.3 @ w/71 cc Heads
      • 12.5 @ w/78 cc Heads
      • 11.4 @ w/88 cc Heads
    • Part TypePiston
    BrandRACETEC PISTONS
    Package Height6.0
    Package Width12.0
    Package Length12.0
    Weight14.0 PG
    Part CategoryPerformance Parts
    Pin Lock Rings IncludedYes
    Compression Height (In)1.48
    Bore (In)4.375
    Wrist Pin StylePress or Full Floating
    QuantitySet of 8
    Piston Head Volume-6.7cc
    Engine Make/SizeMopar Big Block
    Piston StyleFlat Top
    Compression Ratio71cc-13.3, 78cc-12.5, 88cc-11.4
    Ring Thickness1/16 x 1/16 x 3/16 in.
    Piston MaterialForged 4032
    Pin Diameter (In)0.99
    Part FitmentSemi Universal
    Wrist Pin IncludedYes
    Snap Rings IncludedYes
    Vendor Part Number1000571
    Package Qty1
    Package TypeEA
    Some parts are not legal for use in California or other states with similar laws / regulations
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