Cloyes Hex-A-Just True Roller Timing Chain Set - SB Chevy (.010" Shorter) 2010484 Available for 1-1/4 diameter valve

Available for 1-1/4 diameter valve cover holes

5" & 3" Wide Leaf Springs

1971-1971 Mercury Marquis

Gilmer Drive Belt

1987-1991 GMC R3500

Cloyes Hex-A-Just True Roller Timing Chain Set - SB Chevy (.010" Shorter) 2010484 Available for 1-1/4 diameter valveThe Hex A Just System, a true roller timing chain set, allows timing adjustments down to a fraction of a degree. The Torrington needle thrust bearing reduces friction between the block and cam sprocket. 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