About Us 2017-07-29T17:36:33+00:00
Ross Racing Pistons Company Headquarters In El Segundo California

Welcome To Ross Racing Pistons

A Trusted Name Since 1979

Ross Racing Pistons began production of high-end forged aluminum racing pistons in 1979. In an era where most manufacturing factories have been gobbled up by large multinational holding companies, Ken and Moe the two founders, who after 29 years, Moe Mills decided to retire and Ken Roble continues to work full time at ROSS and oversee the day to day operations of the company.

Over 40% of our work force has been with the company for over 10 years, with several Ross Team Leaders having been with the company for over 20 years.  Having had the same management team in force longer than any other company in the racing piston business, gives us the advantages of stability, experience and organization.  These three facets of the firm contribute immensely to our ability to design and manufacture the best pistons available at a competitive price.

Utilizing the newest, most stable and most accurate (Okuma, Mori Seiki, Takisawa, Fadal) CNC equipment available for manufacturing, along with a very wide range of forgings, Ross Racing Pistons maintains exacting tolerances on pistons, for practically all engines.

Since 1979 our mission has remained one in the same.  Provide customers with a superior product along with a (one-on-one) level of customer service we would expect if we were ourselves were making the purchase.  As lifelong racers ourselves, we decided long ago that building one on one relationships with our customers, would allow us to better connect with them and understand their overall needs.

First and foremost, Ross Pistons is a family owned and operated company.  In an era where most piston manufacturing factories have been gobbled up by large multinational holding companies, we remain independent!  Sadly, Moe, one of the two original founders of Ross Racing Pistons has passed, but 30+ years later, Ken Roble still continues to work full time at ROSS and oversee the day to day operations of the company.  Family values are important to us and have been instilled into the daily operations of our business as well as how we view and treat our customers.

Our promise to each and every customers is our life long support and dedication to making a superior product, capable of handling extreme power.  We truly value our relationships with each and every customer and that appreciation extends into our social media outlets and marketing efforts.

ROSS Racing Pistons are distributed through an extensive Warehouse Distributor and Dealer Network both in the United States and worldwide. We have shipped pistons to over 115 countries.

We maintain a complete selection of stocking pistons in our El Segundo, California factory and in our Ohio company owned warehouse. This ensures that Ross Racing Pistons Authorized Dealers and Warehouses, enjoy quick delivery without the additional cost of airfreight.

Our Piston Making Process

Ross Pistons Pistons Design

Each piston first goes through a design phase. Our CAD engineers work with customer orders to modify stock piston designs to meet a specific customer need, or we start with a fresh slate on any engines we aren’t already familiar with.

Our extensive line of forging blanks, start as the ground work for each set of pistons.  In our 1st operation shown here, we’ve drilled pin holes, oil return holes, forced pin oilers, lock removal indents, oil dispersion and pin lock grooves.

Ross Pistons Piston Design & Operation

Pistons are rough turned to within .010 of its finished diameter. The accumulator groove will be cut here if required. The ring lands have been turned down to their correct diameter and the ring grooves have been rough cut to within .002 of the finished width.

Next the pistons are moved to one of the milling centers where the side relief, dome or reverse dome, and valve reliefs are cut. Canted valve layouts are moved to a 5 axis machining center.

Ross Pistons Weight Removal Process

Next the bottom of the pistons are contoured to remove weight. Another weight savings option is 3D profiling, where the bottom of the piston is mirror cut with the top of the piston’s shape, giving the same thickness throughout the inside of the piston!

Ross Pistons Manual Deburr

Each Piston is then hand detailed to remove any burrs or minor imperfections.

During the final machining process the ring grooves are double plunged to prevent groove wave.  This ensures a square groove and excellent finish. The skirt profile and cam are then cut.

The final manufacturing operation is fitting the pins to the pistons on one of the Sunnen automated hones.  There are actually a few more steps to our manufacturing process, but we can’t give away all our secrets.

The pistons are then engraved with the job card number (identification number) and cleaned. This serves as the piston’s serial number for future ordering or technical support.

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