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High Performance History - Our 40 Years of Racing Heritage!

Back in the late 60s the Cloyes engineering team, headed by Mr. Bob Bub, saw the surging popularity of the weekend racer and set out to develop products to service the race crowd. In 1970, Mr. Bub and his team developed and marketed the very first True® Roller Speed set. With its balanced and multi-keyway sprockets, hand-matched with a new chain featuring solid bushing type rollers, the True® Roller set was designed for racing and changed the timing game forever.
In this 1972 letter, Junior Johnson attributes the new Cloyes True® Roller set to aiding in their win at Atlanta (with Bobby Allison driving). They won 10 races that year. The Cloyes name soon became known for their racing timing sets.

As racing grew both professionally and at the enthusiast level, the Cloyes line of High Performance cam drives grew with it. Over the years, Cloyes engineers have collaborated on projects with some of the legendary names in racing – names like Hendrick, Roush, Yates, Dorton, Mondello, as well as the major racing programs at GM, Ford, Mopar, and Mercury Marine.

As competitors came into the market with copy-cat speed sets, we needed to take it up a notch. In 1992, Cloyes developed and patented the Hex-A-Just® True® Roller. Hex-A-Just® was an industry first, allowing an engine builder to easily adjust valve timing with the turn of an allen wrench, saving hours on the dyno or at the track. We soon added our Quick Button 2 pc Timing Cover allowing easy access to the timing adjustment. We now have over five patents that compliment our Hex-A-Just® system, which remains the premier adjustable timing set on the market.

Cloyes Wins Indy!! Cloyes helped power Arie Luyendyk’s winning car at the 1997 Indianapolis 500. This was the first race featuring the Olds Aurora racing engine. Because of our close ties to GM, we were asked to make the timing set for their entries in the new Indy Racing League.

Until its demise in 2006, all the Pontiac Firebirds running in the IROC Series (International Race of Champions) were equipped with a Cloyes True® Roller set. More recently, we’ve made special timing sets for the prototype engines you see running the 24 Hour races at Lemans, Sebring and Daytona.

Over the past 40 years, it has been our innovation and attention to detail that has set us apart from the rest. Today, Cloyes custom race products are in winning engines at all racing levels across the country and around the world. We continue to work for you, the professional racer. We know what’s on the line when you head to the track. We are committed to continue providing the unmatched quality and performance you expect to keep you ahead of the competition!

We thank you for your continued support… 40 years and counting!

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