Cloyes Hex-A-Just True Roller Timing Chain Set - SB Chevy (.005" Shorter) NB100020 ARP uses a premium grade

ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality

Zeronoise (electronic systems for communication in motorsport) and Racing Spirit (technical and lifestyle apparel)

Black Velour Cover Included

3 in Round to 3-1/2 x 2-1/8 in Oval

These are designed longer than factory arms

Cloyes Hex-A-Just True Roller Timing Chain Set - SB Chevy (.005" Shorter) NB100020 ARP uses a premium gradeThe 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