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Since 1952

Cloyes Gear 9-3100 Small Block Chevy True Roller Timing Chain

Cloyes Gear 9-3100 Small Block Chevy True Roller Timing Chain

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Q & A

What's in the Box

Cloyes True Rollers are the original, all-out race proven double roller timing chain sets. Cam sprockets are balanced and made from heat treated 30,000 PSI tensile cast iron, or SAE D7003 ductile iron. Sets have multi-keyway crank sprockets.

  • Ductile Iron or Induction Hardened Cast Iron Cam Sprocket
  • Cloyes Premium True Roller Chain with .250 Diameter Rollers
  • SAE 1144 Billet Steel, Induction Hardened Crank Sprocket with 3 keyways, +/- 4 Degrees
  • All sets are “Hand Matched” to ensure true center distance

Fits 1955-1984 265-400 Chevy small block V8.

Customer Reviews

Rated 5 out of 5 by 1 reviewers.
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Top shelf parts

September 26, 2013
I finally popped for the good parts in this engine and I was not disappointed. Really good looking and fitting Timing Chain set.
Yes, I recommend this product.
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Product Q&A

1 questions : 1 answers

1 answers

What keyway is standard on the crank gear?

Houston, TX, USA
March 21, 2015

What keyway is standard on the crank gear?


March 23, 2015
The rounded keyway and circle stamping are the standard installation. The square shaped keyway and square stamping are for retarding the cam. The triangle shaped keyway and metal stamp are for advancing the cam.
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Cloyes Hex-A-Just True Roller Set is infinitely adjustable to plus or minus six degrees. No machining required, no fumbling with offset bushings. Simply dial in your cam timing with the turn of a wrench, then tighten the cam bolts to lock the cam position in place. Whether your destination is the street or the track, Hex-A-Just will get you there fast!

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