Cloyes Original True® Roller Timing Set - .005" Reduced Center Distance - SB Chevy - 85-Up 305-350

Chains have oversize . 250" dia. Rollers that actually spin as they enter and exit the sprocket teeth, dynamically balanced cast iron or ductile iron cam sprockets and heat-treated, multiple keyway crank sprockets.

Cloyes was founded in the early 1920s in Cleveland, Ohio, by Raymond Cloyes, who started the business by manufacturing by hand a small quantity of replacement fiber and aluminum timing gears for trucks and automobiles. Thus began the story of Cloyes Gear Works, now known as Cloyes Gear and Products, Inc. Cloyes was the first to offer a line of replacement timing components to fit essentially any product with an internal combustion engine. In 1970, Cloyes revolutionized the race industry with the development and introduction of the very first True Roller Timing system. Cloyes has been manufacturing quality timing drives and components since the 1920's. Cloyes offers something for every level of racer. Cloyes offers Cloyes Heavy Duty Timing Chain Sets and Cloyes Street True Roller sets for budget minded racers. For serious performance, Cloyes Original True Roller Timing Sets, Cloyes Billet True Roller Timing Sets, Cloyes Hex-a-Just True Roller Timing Sets and Cloyes Quick Adjust True Roller sets are the class of the field. The patented Cloyes Hex-A-Just was an industry breakthrough when first introduced in 1992. The accuracy and simplicity of the Hex-A-Just system will save you hours of valuable set-up time. Sprockets are made of SAE 1144 induction heat-treated, billet steel. Matched with Cloyes Premium True Roller chain, this set gives you unmatched performance. Cloyes Dual Idler Gear Drives are cut from billet steel, and heat-treated for extreme durability. Cloyes Heavy Duty Idler Shafts are the key to an accurate and consistent Power Stroke. The Cloyes is synonymous with the highest quality, performance timing drives.

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