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Probe SBC Dished Pistons

Probe SBC Forged Dish Pistons

  • Forged of 2618 t-61 Aluminum alloy for the ultimate strength and fatigue resistance.
  • Light weight forging designs for quick revs and power.
  • Tight piston to wall clearance design for better ring seal.
  • Fully CNC machined domes and valve reliefs for perfect fit.
  • Radial Anti Detonation Grooves reduce detonation by clipping pressure spikes.
  • Pressure Equalization Channel enhances ring seal, making more power and increasing fuel economy.
  • Full floated lightweight wrist pins and double spiro locks for durability.
  • Narrow piston rings for the ultimate in power.

Advances in CNC machine capability and the utilization of a "clean sheet of paper" method of manufacturing design has allowed Probe to create a piston line that is arguably a work of art. Our method of machining wrist pin bores provides the most accurate pin bore imaginable. At nominal clearance a wrist pin can be dropped through the piston with virtually no resistance, the result of eliminating the honing operation.

Probe Forged Pistons also feature the latest design innovations in ring land technology.

The top ring land features radial anti detonation grooves. These grooves knock the peaks off shock waves within the cylinder, reducing the propensity to detonate.

The second ring land features our pressure equalization channel, which is a shaped channel that works by equalizing the pressure seen between the top and second ring with the pressure in the combustion chamber. This feature enhances ring seal, improving power, engine life and fuel economy.

In the past all pistons featured cam ground piston skirts to achieve the shape required to work in an engine. As with most things computer technology has provided us with the ability to improve upon this technique. Probe Racing Components is the recipient the newest CNC technology available to achieve the most accurate piston skirt designs and finishes in the industry. Further a complete "rethink" of the tooling and fixtures have allowed us to eliminate the variations caused by multiple setups.

Probe Forged Pistons provide you with quality and features normally found only in pistons costing substantially more. Further they are in stock ready for immediate delivery.

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