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1001373 RaceTec Forged Inverted Dome/Dish Piston Set for Small Block Ford 302 20-Degree Engines [4.035 in. Bore]
InfoVehicle Info Needed
RACETEC PISTONSPART NUMBER: 613-1001373

1001373 RaceTec Forged Inverted Dome/Dish Piston Set for Small Block Ford 302 20-Degree Engines [4.035 in. Bore]

$1,09700
ShippingShips on 12/14/2026
Lowest PriceLowest Price Guarantee

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RaceTec Forged Piston Set
  • SB Ford 302 20-Degree
  • 4.035 in. Bore
  • Forged 2618 Aluminum
  • 4 in. Stroke
  • 6.200 in. Rod Length
  • 1.300 in. Compression Height
  • -29.7 cc Crown Volume
  • 1.5 x 1.5 x 3.0 mm Ring Grooves
  • Set of 8

    Racetec 1001373 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
    • 912-2700-51-15C or 927-2700-51-15C 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 1001373 Racetec Inverted Dome/Dish Piston Set Specs:

    • Engine Family: 20-Degree Small Block Ford 302
    • Displacement reference: 409 cu. in. (6.7L)
    • Bore: 4.035 in.
    • Stroke: 4 in.
    • Rod Length: 6.200 in.
    • Compression Height: 1.300 in.
    • Crown Volume: -29.7 cc
    • Piston Style: Inverted Dome/Dish
    • Alloy: 2618
    • Wrist Pin Diameter: 0.927 in.
    • Ring Grooves: 1.5 mm Top, 1.5 mm Second, 3.0 mm Oil

    RaceTec 1001373 RaceTec Inverted Dome/Dish Piston Set Notes:

    • Requires RaceTec AT 4035 Ring Set or Equivalent (Sold Separately)
    • Compression Ratios:
      • 9.9 @ w/56 cc Heads
      • 9.5 @ w/60 cc Heads
      • 9.2 @ w/64 cc Heads
    • Will not fit Twisted Wedge heads

      • RaceTec Series Pistons For Ford 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 Ford
    BrandRACETEC PISTONS
    Package Height8.0
    Package Width12.0
    Package Length13.0
    Weight12.0 PG
    Part CategoryPerformance Parts
    Pin Lock Rings IncludedYes
    Compression Height (In)1.3
    Bore (In)4.035
    Wrist Pin StylePress or Full Floating
    QuantitySet of 8
    Piston Head Volume-29.7cc
    Engine Make/SizeFord Small Block
    Piston StyleInverted Dome/Dish
    Compression Ratio56cc-9.9, 60cc-9.5, 64cc-9.2
    Ring Thickness1.5 x 1.5 x 3.0 mm
    Piston MaterialForged 2618
    Pin Diameter (In)0.927
    Part FitmentSemi Universal
    Wrist Pin IncludedYes
    Snap Rings IncludedYes
    Vendor Part Number1001373
    Package Qty1
    Package TypeEA
    Some parts are not legal for use in California or other states with similar laws / regulations
    p65 warning