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Factory Performance Series
Suitable for Heavy Duty, high performance street and some race applications!

Probe FRS Forged Pistons are designed for heavy duty and high performance use when the application requires a piston that is stronger than a Cast or Hypereutectic Cast Piston. Compression Ratios are similar to factory applications and weights are generally lighter than the TRW equivalent. The FPS series is manufactured using the same ultra-modern machining techniques as the SRS and PRS series pistons.
-Forged of VMS-75 High Silicon Aluminum for lasting performance.
-Light weight forging design is typically about 70 grams lighter than TRW’s.
-CNC Diamond machined skirts and ring grooves for increase power.
-Tight piston to wall clearance design for better ring seal.
-Reinforced piston skirts to eliminate piston skirt collapse.
-Radial Anti Detonation Grooves reduce detonation by clipping pressure spikes.
-Pressure Equalization Channel enhances ring seal, making more power and increasing fuel economy.
-Increased valve relief depth for high performance camshafts.
-Offset wrist pins for reduced noise and lasting operation.
-Stock size rings grooves and press fit piston pins.


Sportsman Race Series
Suitable for high performance street and all forms of racing!

Probe SRS Forged Pistons are designed for performance and race applications where a strong, lightweight forged piston is an advantage. With well over 200 part numbers now in stock for popular Chevrolet, Ford, Chrysler, and Import applications, these full-featured pistons are extremely popular for use in street and most racing combinations.

-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.


Performance Race Series
Specifically designed for racing applications!

Probe PRS Forged Pistons are specifically designed for racing applications. Now available for the Chevrolet 350 and Ford 2300, Probe PRS pistons are designed to be the lightest pistons available anywhere. In addition to the ultralight weight Probe PRS forged pistons are designed to radically reduce drag and enhance ring seal to increase power.

The Probe Industries revolutionary "Monocoque" 2618 forging produces the first true ultralight piston designed specifically for Chevrolet 2 barrel oval track use. A piston designed for a 355 cubic inch engine with a 6.000 inch center to center connecting rods currently weighs a mere 362 grams. This incredibly low weight is achieved with NO INTERNAL MILLING!

Due to the exclusive "Monocoque" forging design the Probe PRS forged piston is also stronger than any piston in it's class. This Probe piston forging virtually eliminates "oil canning" the piston deck, allowing a thinner deck with superior strength.

Added to the unequalled piston acceleration gained with the ultralight design, is the "frictionless" piston technology. The Probe PRS forged piston comes fully equipped with .043 .043 3mm ring grooves, allowing the use of extremely low drag piston rings. The specially designed skirt substantially increases available power and reliability. Excellent ring seal is ensured with the standard lateral gas ports in the top ring. Dual forced pin oilers are standard. And overall reciprocating weight is further reduced by the use of a .927 x 2.250 wrist pin.

-Forged of 2618 t-61 Aluminum alloy for the ultimate strength and fatigue resistance
-Light weight "Monocoque" forging designs for quick revs and power
-Lateral gas ports for the ultimate in ring seal
-Narrow ring lands .043" top and second in most models
-"Frictionless" skirt designs
-Radial Anti Detonation Grooves reduce detonation by clipping pressure spikes
-Pressure Equalization Channel enhances ring seal, making more power and increasing fuel economy
-Lightweight 2.250 pins and double spiro locks for durability.

Many variations available for stockers, strokers and special head combinations. Please contact us for more information.
1-877-611-2613 Toll free in the 48 states .
 
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