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Diamond Pistons Competition Series for 2020-2022 F-350 SUPER DUTY, F-250 2021-2022 E-350 DUTY - 30928-R1-8 and Rings, Forged Aluminum, 4.220 in. Bore, 3.976 in. Stroke, Compression Ratio 11:1, +15.50cc Head Volume, Ford, Godzilla, 7.3L, Set

SKU: DPP30928-R1-8

Pistons

Diamond Pistons Competition Series for 2020-2022 F-350 SUPER DUTY, F-250 2021-2022 E-350 DUTY - 30928-R1-8 and Rings, Forged Aluminum, 4.220 in. Bore, 3.976 in. Stroke, Compression Ratio 11:1, +15.50cc Head Volume, Ford, Godzilla, 7.3L, Set

SKU: DPP30928-R1-8

Pistons
A$3,195.38
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

Diamond Pistons Competition Series pistons are for those looking to take their engine to a whole new level of power. These forged aluminum pistons are superior in strength and provide extra protection during the high-stresses of high-compression, forced induction, or nitrous.

Diamond Pistons Competition Series features:

* 3D milling on piston crowns for "ready-to-install" finish
* Generous valve pockets designed to work with stock or oversized valves and various cylinder heads
* Constructed from forged 4032 or 2618 aluminum alloy (where specified)
* Premium 8620 or H-13 steel wrist pins (where specified)

Part Type

Pistons

Data: v4.2 - Upd: 2026-09-28 14:13:35

Specifications

Product Attributes - Brand
Diamond Pistons
Product Attributes - Manufacturer's Part Number
30928-R1-8
Product Attributes - Part Type
Pistons
Product Attributes - Product Line
Diamond Pistons Competition Series Pistons
Product Attributes - UPC
193564437365
Product Attributes - Piston Rings Included
Yes
Product Attributes - Bore (in.)
4.220 in.
Product Attributes - Bore (mm)
107.188mm
Product Attributes - Stroke
3.976 in.
Product Attributes - Engine Stroke Type
Stock
Product Attributes - Actual Engine Displacement
7.3L/445
Product Attributes - Rod Length
6.318 in.
Product Attributes - Piston Style
Dish, with two valve reliefs
Product Attributes - Piston Material
Forged aluminum
Product Attributes - Compression Height (in.)
1.320 in.
Product Attributes - Piston Head Volume (cc)
+15.50cc
Product Attributes - Wrist Pin Style
Floating
Product Attributes - Wrist Pin Retainers Included
Yes
Product Attributes - Wrist Pin Included
Yes
Product Attributes - Pin Diameter (in.)
0.990 in.
Product Attributes - Piston Ring Thickness
0.043 in. x 0.043 in. x 3.00mm
Product Attributes - File Fit
Yes
Product Attributes - Gapless
No
Product Attributes - Top Ring Thickness
0.043 in.
Product Attributes - Top Ring Material
Ductile iron
Product Attributes - Top Ring Facing Material
Plasma-moly
Product Attributes - Second Ring Thickness
0.043 in.
Product Attributes - Second Ring Material
Ductile iron
Product Attributes - Second Ring Facing Material
Ductile iron
Product Attributes - Oil Ring Thickness
3.0mm
Product Attributes - Oil Ring Material
Stainless steel
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a set of 8.
Product Attributes - Notes
Approximate compression ratio 11:1.

Reference Information

Brand Name/s Diamond Pistons
StreetFX SKU dpp30928-R1-8
SFX Item ID 5525882
Supplier Item Code 5525882
Manufacturer SKU 30928-R1-8
Manufacturer UPC 193564437365
Alternative References F-350, F-250, E-350, +15.50cc, 7.3L

Compatibility

Application Data
  • MakeFORD
    ModelE-350 SUPER DUTY
    SubmodelBASE
    Beginning Year2021
    Ending Year2022
    Engine TypeV8
    Engine FamilyFord 7X V8
    Engine Size7.3L/445
  • MakeFORD
    ModelF-250 SUPER DUTY
    SubmodelKING RANCH
    Beginning Year2020
    Ending Year2022
    Engine TypeV8
    Engine FamilyFord 7X V8
    Engine Size7.3L/445
  • MakeFORD
    ModelF-250 SUPER DUTY
    SubmodelLARIAT
    Beginning Year2020
    Ending Year2022
    Engine TypeV8
    Engine FamilyFord 7X V8
    Engine Size7.3L/445
  • MakeFORD
    ModelF-250 SUPER DUTY
    SubmodelPLATINUM
    Beginning Year2020
    Ending Year2022
    Engine TypeV8
    Engine FamilyFord 7X V8
    Engine Size7.3L/445
  • MakeFORD
    ModelF-250 SUPER DUTY
    SubmodelXL
    Beginning Year2020
    Ending Year2022
    Engine TypeV8
    Engine FamilyFord 7X V8
    Engine Size7.3L/445
  • MakeFORD
    ModelF-250 SUPER DUTY
    SubmodelXLT
    Beginning Year2020
    Ending Year2022
    Engine TypeV8
    Engine FamilyFord 7X V8
    Engine Size7.3L/445
  • MakeFORD
    ModelF-350 SUPER DUTY
    SubmodelKING RANCH
    Beginning Year2020
    Ending Year2022
    Engine TypeV8
    Engine FamilyFord 7X V8
    Engine Size7.3L/445
  • MakeFORD
    ModelF-350 SUPER DUTY
    SubmodelLARIAT
    Beginning Year2020
    Ending Year2022
    Engine TypeV8
    Engine FamilyFord 7X V8
    Engine Size7.3L/445
  • MakeFORD
    ModelF-350 SUPER DUTY
    SubmodelPLATINUM
    Beginning Year2020
    Ending Year2022
    Engine TypeV8
    Engine FamilyFord 7X V8
    Engine Size7.3L/445
  • MakeFORD
    ModelF-350 SUPER DUTY
    SubmodelXL
    Beginning Year2020
    Ending Year2022
    Engine TypeV8
    Engine FamilyFord 7X V8
    Engine Size7.3L/445
  • MakeFORD
    ModelF-350 SUPER DUTY
    SubmodelXLT
    Beginning Year2020
    Ending Year2022
    Engine TypeV8
    Engine FamilyFord 7X V8
    Engine Size7.3L/445

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