Collection: Diamond

Diamond Racing Pistons is one of the leading manufacturers of high performance forged pistons used in professional racing and high horsepower engine builds. Known for precision machining and advanced piston design, Diamond pistons are trusted by engine builders and racing teams worldwide.

Diamond specializes in premium forged pistons engineered to handle extreme cylinder pressure, high RPM and demanding performance applications. Their pistons are designed to deliver strength, durability and precise fitment for modern performance engines.

Popular applications include forged pistons for LS engines, Small Block Chevy and Big Block Chevy builds, as well as custom piston designs for specialized engine combinations.

Whether you are building a high horsepower street engine, a boosted setup or a dedicated race engine, Diamond Racing Pistons provide the strength and reliability required for serious performance applications.

Piston Ring Set, 1 Cylinder, 3.189" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.189" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08100
Available to Backorder
Piston Ring Set, 1 Cylinder, 3.208" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.208" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08150
Available to Backorder
Piston Ring Set, 1 Cylinder, 3.228" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.228" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08200
Available to Backorder
Piston Ring Set, 1 Cylinder, 3.248" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.248" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08250
Available to Backorder
Piston Ring Set, 1 Cylinder, 3.270" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.270" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08300
Available to Backorder
Piston Ring Set, 1 Cylinder, 3.287" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.287" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08350
Available to Backorder
Piston Ring Set, 1 Cylinder, 3.307" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.307" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08400
Available to Backorder
Piston Ring Set, 1 Cylinder, 3.327" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.327" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08450
Available to Backorder
Piston Ring Set, 1 Cylinder, 3.346" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.346" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08500
Available to Backorder
Piston Ring Set, 1 Cylinder, 3.366" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.366" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08550
Available to Backorder
Piston Ring Set, 1 Cylinder, 3.375" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.375" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08575
Available to Backorder
Piston Ring Set, 1 Cylinder, 3.385" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.385" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08600
Available to Backorder
Piston Ring Set, 1 Cylinder, 3.396" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.396" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08625
Available to Backorder
Piston Ring Set, 1 Cylinder, 3.405" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.405" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08650
Available to Backorder
Piston Ring Set, 1 Cylinder, 3.425" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.425" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08700
Available to Backorder
Piston Ring Set, 1 Cylinder, 3.435" Bore, 1.0mm/1.2mm/2.8mm
Diamond Pistons

Piston Ring Set, 1 Cylinder, 3.435" Bore, 1.0mm/1.2mm/2.8mm

621 SEK
SKU: DIA09-21-GNH08725
Available to Backorder
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