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1001305 RaceTec Forged Inverted Dome/Dish Piston Set for Big Block Chevy Engines [4.560 in. Bore]
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RACETEC PISTONSPART NUMBER: 613-1001305

1001305 RaceTec Forged Inverted Dome/Dish Piston Set for Big Block Chevy Engines [4.560 in. Bore]

$1,09700
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RaceTec Forged Piston Set
  • BB Chevy
  • 4.560 in. Bore
  • Forged 2618 Aluminum
  • 4 in. Stroke
  • 6.135 in. Rod Length
  • 1.645 in. Compression Height
  • -13.5 cc Crown Volume
  • 1.5 x 1.5 x 3.0 mm Ring Grooves
  • Set of 8

    Racetec 1001305 RaceTec Inverted Dome/Dish Piston Set Features:

    • Manufactured on 2618 material forgings that will accept mild blown or nitrous 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
    • Top ring land gas distribution grooves to enhance performance and improve ring seal
    • 990-2800-51-15C 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

    RaceTec 1001305 Racetec Inverted Dome/Dish Piston Set Specs:

    • Engine Family: Big Block Chevy
    • Displacement reference: 522 cu. in. (8.6L)
    • Bore: 4.560 in.
    • Stroke: 4 in.
    • Rod Length: 6.135 in.
    • Compression Height: 1.645 in.
    • Crown Volume: -13.5 cc
    • Piston Style: Inverted Dome/Dish
    • Alloy: 2618
    • Wrist Pin Diameter: 0.990 in.
    • Ring Grooves: 1.5 mm Top, 1.5 mm Second, 3.0 mm Oil

    RaceTec 1001305 RaceTec Inverted Dome/Dish Piston Set Notes:

    • Requires RaceTec AT 4560 Ring Set or Equivalent (Sold Separately)
    • Compression Ratios:
      • 8.9 @ w/110 cc Heads
      • 8.5 @ w/118 cc Heads
      • 8.2 @ w/124 cc Heads
    • Fits both Closed and Open Chamber heads

      • RaceTec Series Pistons For Chevy Applications: Ultimate 2618 Alloy Strength For High-Horsepower Builds

      RaceTec Series Pistons represent the highest level of precision-engineered performance, manufactured from forged or billet 2618 aluminum alloy for extreme durability and strength. Designed using advanced CAD technology and modern CNC machining, these pistons feature diamond-turned ring grooves and skirts for superior sealing, reduced friction, and consistent performance under high horsepower demands. The RaceTec Series provides proven reliability for everything from shelf applications with mild nitrous or boost to fully custom Top Fuel, vintage racing, and extreme power builds.

    Part TypePiston
    Product LineRaceTec Series Pistons for Chevy
    BrandRACETEC PISTONS
    Package Height6.0
    Package Width12.0
    Package Length12.0
    Weight14.0 PG
    Part CategoryPerformance Parts
    Pin Lock Rings IncludedYes
    Compression Height (In)1.645
    Bore (In)4.56
    Wrist Pin StylePress or Full Floating
    QuantitySet of 8
    Piston Head Volume-13.5cc
    Engine Make/SizeChevy Big Block
    Piston StyleInverted Dome/Dish
    Compression Ratio110cc-8.9, 118cc-8.5, 124cc-8.2
    Ring Thickness1.5 x 1.5 x 3.0 mm
    Piston MaterialForged 2618
    Pin Diameter (In)0.99
    Part FitmentSemi Universal
    Wrist Pin IncludedYes
    Snap Rings IncludedYes
    Vendor Part Number1001305
    Package Qty1
    Package TypeEA
    Some parts are not legal for use in California or other states with similar laws / regulations
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