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Speed-Pro Forged Pistons L2303NF30 Piston, Forged, Dish, 4.160 in. Bore, Ford, Mercury, Set of 8

SKU: SLPL2303NF30

Pistons
Speed-Pro Forged Pistons L2303NF30 Piston, Forged, Dish, 4.160 in. Bore, Ford, Mercury, Set of 8

Sealed Power

Speed-Pro Forged Pistons L2303NF30 Piston, Forged, Dish, 4.160 in. Bore, Ford, Mercury, Set of 8

SKU: SLPL2303NF30

Pistons
A$1,532.01
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

Speed-Pro forged pistons are made from extruded VMS-75 aluminum alloy that's forged under 3,000 tons of pressure to "near-net" shape. After that, they're machined to their final configuration. These pistons offer excellent strength and durability—and are capable of taking the punishment that's dished out on the street and in competition. They're available for a wide variety of applications, including OE replacements and all-out racing engines.

Part Type

Forged Piston

Data: v4.2 - Upd: 2026-09-30 14:11:32

Specifications

Product Attributes - Brand
Sealed Power
Product Attributes - Manufacturer's Part Number
L2303NF30
Product Attributes - Part Type
Pistons
Product Attributes - Product Line
Speed-Pro Forged Pistons
Product Attributes - UPC
087674656580
Product Attributes - Piston Rings Included
No
Product Attributes - Bore (in.)
4.160 in.
Product Attributes - Bore (mm)
105.664mm
Product Attributes - Stroke
3.980 in.
Product Attributes - Engine Stroke Type
Stock
Product Attributes - Rod Length
6.480 in.
Product Attributes - Piston Style
Dish, with four valve reliefs
Product Attributes - Piston Material
Forged aluminum
Product Attributes - Compression Height (in.)
1.674 in.
Product Attributes - Piston Head Volume (cc)
+10.30cc
Product Attributes - Wrist Pin Style
Press-fit or floating
Product Attributes - Wrist Pin Retainers Included
No
Product Attributes - Wrist Pin Included
Yes
Product Attributes - Pin Diameter (in.)
0.975 in.
Product Attributes - Piston Ring Thickness
5/64 in. x 5/64 in. x 3/16 in.
Product Attributes - File Fit
No
Product Attributes - Gapless
No
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a set of 8.
Product Attributes - Notes
DurOshield® coated piston skirt.

Reference Information

Brand Name/s Sealed Power
StreetFX SKU slpL2303NF30
SFX Item ID 5028309
Supplier Item Code 5028309
Manufacturer SKU L2303NF30
Manufacturer UPC N/A
Alternative References SEAL2303NF30

Compatibility

Application Data
  • MakeFORD
    Beginning Year1966
    Ending Year1970
    Engine TypeV8
    Engine FamilyFORD BIG BLOCK FE V8 GAS
    Engine Size7.0L/428
    Application NotesCobra Jet. Deck clearance 0.017 inch. Skirt clearance 0.0020 inch.
  • MakeFORD
    Beginning Year1968
    Ending Year1968
    Engine TypeV8
    Engine FamilyFORD BIG BLOCK FE V8 GAS
    Engine Size7.0L/428
    Application NotesOriginal equipment type replacement for passenger car engine VIN code R.
  • MakeFORD
    ModelFAIRLANE
    Submodel500
    Beginning Year1968
    Ending Year1970
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application Notes.030" Oversize Powerforged 3 Ring Groove Piston Ring Groove Widths: 5/64, 5/64, 3/16 (in.) 1.674 CD .085 dish, 4 reliefs DUROSHIELD skirt coated piston Use in sets only
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    Submodel500
    Beginning Year1968
    Ending Year1970
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application Notes0.030in Oversize Powerforged piston 3 Ring Piston Ring Groove Widths: 5/64in , 5/64in , 3/16in 1.674in Compression Distance 0.085in Deep Recess; with 4 Valve Reliefs DUROSHIELD Skirt Coated Piston Replace in Full Sets Only
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    Submodel500
    Beginning Year1968
    Ending Year1970
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesPowerforged Use in sets only 0.9752" Pin Dia. 2 Ring(s) 5/64 Groove 1 Ring(s) 3/16 Groove 1.674 CD .085 dish, 4 reliefs DUROSHIELD® skirt coated piston .030" Oversize
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    Submodel500
    Beginning Year1968
    Ending Year1970
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesPowerforged piston 3 Ring Piston Ring Groove Widths: 5/64in , 5/64in , 3/16in 1.674in Compression Distance 0.085in Deep Recess; with 4 Valve Reliefs DUROSHIELD Skirt Coated Piston Replace in Full Sets Only 0.030in Oversize
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    Submodel500
    Beginning Year1968
    Ending Year1970
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesPowerforged piston 3 Ring Piston Ring Groove Widths: 5/64in , 5/64in , 3/16in 1.674in Compression Distance 0.085in Deep Recess; with 4 Valve Reliefs DUROSHIELD Skirt Coated Piston Replace in Full Sets Only Sold as Set Priced Individually 0.030in Oversize
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    Submodel500
    Beginning Year1968
    Ending Year1970
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesPowerforged piston Sold as Set
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    Submodel500
    Beginning Year1968
    Ending Year1970
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    Submodel500
    Beginning Year1968
    Ending Year1970
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesSold as Set Priced Individually
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    Submodel500
    Beginning Year1968
    Ending Year1970
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesUse in sets only Powerforged 0.9752" Pin Dia. 2 Ring(s) 5/64 Groove 1 Ring(s) 3/16 Groove 1.674 CD .085 dish, 4 reliefs DUROSHIELD« skirt coated piston; .030" Oversize
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    Submodel500
    Beginning Year1968
    Ending Year1970
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesUse in sets only Powerforged 0.9752" Pin Dia. 2 Ring(s) 5/64 Groove 1 Ring(s) 3/16 Groove 1.674 CD .085 dish, 4 reliefs DUROSHIELD® skirt coated piston; .030" Oversize
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    Submodel500
    Beginning Year1968
    Ending Year1970
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesUse in sets only Powerforged 0.9752" Pin Dia. 2 Ring(s) 5/64 Groove 1 Ring(s) 3/16 Groove 1.674 CD .085 dish, 4 reliefs DUROSHIELD® skirt coated piston
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    Submodel500
    Beginning Year1968
    Ending Year1970
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesUse in sets only Powerforged 2 Groove(s) 5/64 1 Groove(s) 3/16 1.674 CD .085 dish, 4 reliefs DUROSHIELD skirt coated piston .030" Oversize
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    Submodel500
    Beginning Year1968
    Ending Year1970
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesUse in sets only Powerforged 2 Groove(s) 5/64 1 Groove(s) 3/16 1.674 CD .085 dish, 4 reliefs DUROSHIELD® skirt coated piston .030" Oversize
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    Submodel500
    Beginning Year1968
    Ending Year1970
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesUse in sets only Powerforged 2 Ring(s) 0.9752" Pin Dia. 5/64 Groove 1 Ring(s) 3/16 Groove 1.674 CD .085 dish, 4 reliefs DUROSHIELD« skirt coated piston; .030" Oversize
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    Submodel500
    Beginning Year1969
    Ending Year1969
    Engine TypeV8
    Liter7.0
    CID428
    Engine FamilyFord big block FE
    Engine Size7.0L/428
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    SubmodelBASE
    Beginning Year1968
    Ending Year1969
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application Notes.030" Oversize Powerforged 3 Ring Groove Piston Ring Groove Widths: 5/64, 5/64, 3/16 (in.) 1.674 CD .085 dish, 4 reliefs DUROSHIELD skirt coated piston Use in sets only
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    SubmodelBASE
    Beginning Year1968
    Ending Year1969
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application Notes0.030in Oversize Powerforged piston 3 Ring Piston Ring Groove Widths: 5/64in , 5/64in , 3/16in 1.674in Compression Distance 0.085in Deep Recess; with 4 Valve Reliefs DUROSHIELD Skirt Coated Piston Replace in Full Sets Only
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    SubmodelBASE
    Beginning Year1968
    Ending Year1969
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesPowerforged Use in sets only 0.9752" Pin Dia. 2 Ring(s) 5/64 Groove 1 Ring(s) 3/16 Groove 1.674 CD .085 dish, 4 reliefs DUROSHIELD® skirt coated piston .030" Oversize
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    SubmodelBASE
    Beginning Year1968
    Ending Year1969
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesPowerforged piston 3 Ring Piston Ring Groove Widths: 5/64in , 5/64in , 3/16in 1.674in Compression Distance 0.085in Deep Recess; with 4 Valve Reliefs DUROSHIELD Skirt Coated Piston Replace in Full Sets Only 0.030in Oversize
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    SubmodelBASE
    Beginning Year1968
    Ending Year1969
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesPowerforged piston 3 Ring Piston Ring Groove Widths: 5/64in , 5/64in , 3/16in 1.674in Compression Distance 0.085in Deep Recess; with 4 Valve Reliefs DUROSHIELD Skirt Coated Piston Replace in Full Sets Only Sold as Set Priced Individually 0.030in Oversize
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    SubmodelBASE
    Beginning Year1968
    Ending Year1969
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesPowerforged piston Sold as Set
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    SubmodelBASE
    Beginning Year1968
    Ending Year1969
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Engine VIN CodeR
  • MakeFORD
    ModelFAIRLANE
    SubmodelBASE
    Beginning Year1968
    Ending Year1969
    Engine TypeV8
    Liter7.0
    CID428
    CC7014
    Engine FamilyFORD BIG BLOCK FE COBRA JET/SUPER CJ V8 GAS
    Engine Size7.0L/428
    Application NotesSold as Set Priced Individually
    Engine VIN CodeR

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