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Diamond Pistons

Diamond Pistons Big Block 24/26 Degree Pro Dome Series 12302-8 Domestic - 1000HP Rated - 2618 Material - Includes Pins and Rings

SKU: DPP12302-8

Pistons
Diamond Pistons Big Block 24/26 Degree Pro Dome Series 12302-8 Domestic - 1000HP Rated - 2618 Material - Includes Pins and Rings

Diamond Pistons

Diamond Pistons Big Block 24/26 Degree Pro Dome Series 12302-8 Domestic - 1000HP Rated - 2618 Material - Includes Pins and Rings

SKU: DPP12302-8

Pistons
A$3,390.99
LAST ONE! Est Ship 4-7 days. LAST ONE! This is the last unit at our distribution centre. Contact us if you need more. The ETA is the approximate time required to prepare your order for dispatch.
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Description

Diamond Pistons Big Block 24/26 Degree Pro Dome Series pistons are available for a variety of applications, including many Chevrolet V-8 engines from 1965-90. Forged from aluminum with no valve relief, these dome-style pistons are offered in different bore, stroke, and rod length sizes—along with several other options. Order individually or in a set of 8.

Additional details:

* 1,000 hp rated
* Forced pin oilers from the oil ring
* Pin fitted
* 3-D dome and pockets
* Pins, locks and support rails (if required) included

Part Type

Pistons

Data: v4.2 - Upd: 2026-09-28 14:13:10

Specifications

Product Attributes - Brand
Diamond Pistons
Product Attributes - Manufacturer's Part Number
12302-8
Product Attributes - Part Type
Pistons
Product Attributes - Product Line
Diamond Pistons Big Block 24/26 Degree Pro Dome Series Pistons
Product Attributes - UPC
686162206414
Product Attributes - Piston Rings Included
Yes
Product Attributes - Bore (in.)
4.280 in.
Product Attributes - Bore (mm)
108.712mm
Product Attributes - Stroke
4.000 in.
Product Attributes - Engine Stroke Type
Stroked
Product Attributes - Rod Length
6.135 in.
Product Attributes - Piston Style
Dome, with no valve reliefs
Product Attributes - Piston Material
Forged aluminum
Product Attributes - Compression Height (in.)
1.645 in.
Product Attributes - Piston Head Volume (cc)
-46.00cc
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
1/16 in. x 1/16 in. x 3/16 in.
Product Attributes - File Fit
Yes
Product Attributes - Gapless
No
Product Attributes - Top Ring Thickness
1/16 in.
Product Attributes - Top Ring Material
Ductile iron
Product Attributes - Top Ring Facing Material
Plasma-moly
Product Attributes - Second Ring Thickness
1/16 in.
Product Attributes - Second Ring Material
Ductile iron
Product Attributes - Second Ring Facing Material
Ductile iron
Product Attributes - Oil Ring Thickness
3/16 in.
Product Attributes - Oil Ring Material
Stainless steel
Product Attributes - Oil Ring Tension
Standard
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a set of 8.
Product Attributes - Notes
Pistons are 2618 material.

Reference Information

Brand Name/s Diamond Pistons
StreetFX SKU dpp12302-8
SFX Item ID 5524684
Supplier Item Code 5524684
Manufacturer SKU 12302-8
Manufacturer UPC 686162206414
Alternative References 1000HP

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1965
    Ending Year1969
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size6.5L/396
    Application NotesFor use with 24 or 26 degree cylinder heads.
  • MakeCHEVROLET
    Beginning Year1970
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Application NotesFor use with 24 or 26 degree cylinder heads.

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