Page 125 - 2022-23 Auto Performance Open Wheel Catalog
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                   SB Chevy Quick Adjust® True®
Roller Timing Chain Sets
CLO9-3100A
Sets feature the patented Quick Adjust system,
which allows valve timing adjustments without having
to unload the valvetrain. Perform critical valve timing
changes at the track to maximize performance or
compensate for changing track or weather condi-
tions. Timing sets also include billet steel, induction
heat-treated sprockets and an IWIS true roller timing
chain with large, .250" diameter rollers for maximum durability and performance. For 1955-Up 265-400 engines.
Original True®
Roller Timing Chain Sets
Chains have oversize .250" diameter 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.
 Description
Standard Part No.
-.005" Part No.
-.010" Part No.
 SB Chevy, 1955-Up 265-400
 CLO9-3100
 CLO9-3100-5
 CLO9-3100-10
 SB Chevy, 1985-Up 305-350
  CLO9-3145
  CLO9-3145-5
  —
      Hex-A-Just® True®
Roller Timing Chain Sets
Make quick and precise cam timing changes
with no troublesome offset bushings or keyways.
T To o r r r r i i n n g g t t o o n n t t h h r r u u s s t t b b e e a a r r i i n n g g s s r r e e d d u u c c e e f f r r i i c c t t i i o o n n b b e e t t w w e e e e n n t t h h e e b b l l o o c c k k a a n n d d c c a a m m s s p p r r o o c c k ke e t t . . M M o o s s t t s s e e t t s s a a r r e e o o f f f f e e r r e e d d w w i i t t h h .005" or .010" reduced center distance.
Heavy-Duty Timing Chain Sets
Cloyes heavy-duty timing chain sets include roller chains with .200" diameter rollers, high-quality cast iron cam sprockets, and heat-treated, carbon steel crank sprockets. Part numbers with an “X” have three keyways in the crank sprocket.
Part No.
Description
  CLOC-3023SP
 SB Chevy, 1955-Up 265-400, 1 Keyway
 CLOC-3023XSP
  SB Chevy, 1955-Up 265-400, 3 Keyways
      Description
Hex-A-Just True Roller
Standard Part No.
-.005" Part No.
-.010" Part No.
 SB Chevy, 1955-Up 265-400
  CLO9-3100A
  CLO9-3100A-5
  CLO9-3100A-10
 SB Chevy 1955-Up 265-400 With BB Chevy Crank Snout
CLO9-3100B
—
—
 SB Chevy, 1985-Up 305-350
 CLO9-3145A
 —
 —
 SB Chevy “Rocket” Block
  CLO9-3146A
    —
  Replacement Roller Timing Chains
Ideal when replacing the timing chain from an existing Cloyes timing set.
  Description
Quick ButtonTM
Quick Adjust Part No.
Hex-A-Just Part No.
Original True Part No.
  SB Chevy, 1955-Up
  CLO9-130
  CLO9-130
  CLO9-130
 SB Chevy “Rocket” Block
 CLO9-131
 CLO9-131
 CLO9-131
   Timing Chain Sets With “Z” Chain
Engineered for extreme racing conditions, Hex- A-Just True Roller timing sets include the addition
of the exclusive, double-roller “Z” chain that incor- porates proprietary, heat-treat processing for 33%
m m o o r r e e s s t t r r e e n n g g t t h h c c o o m m p p a a r r e e d d t t o o e e x x i i s s t t i i n n g g c c h h a a i i n n s s . . S S e e l l e e c c t t e e d d s s e e t t s s a a r r e e o o f f f f e e r r e e d d w w i i t t h h s s t t a a n n d d a a r r d d o o r r . . 0 0 0 0 5 5" " r r e e d d u u c c e e d d c c e e n n t te e r r distance.
Two-Piece Timing Covers
   Part No.
Description
Tw o - p i e c e c o v e r s a l l o w a d j u s t i n g o f c a m
t i m i n g o r e n d p l ay w i t h o u t r e m ov i n g t h e e n t i r e timing cover, oil pan, and damper. Die-cast alu- minum cover is fitted with an O-ring seal which eliminates gaskets or sealants.
Part No. Description
SB Chevy Cam Buttons
Cam buttons are used to control camshaft end play, preventing “walking”. Billet steel buttons include Torrington bearings for superb performance and reliability.
 CLO9-3100AZ
    SB Chevy, 1955-Up 265-400
 CLO9-3146BZ
  SB Chevy “Rocket" Block, BB Chevy Snout
 CLO9-3146BZ-5
SB Chevy “Rocket" Block,
BB Chevy Snout, .005" Reduced Distance
 CLO9-130Z
  Replacement Timing Chain for CLO9-3100AZ
   CLO9-221
 SB Chevy, 1955-Up 265-400
 CLO9-226
  SB Chevy, “Rocket” Block
    Replacement Hex-A-Just® Bushing
CLOP9005
Billet True® Roller Timing Chain Sets
Sets have heat-treated steel billet cam sprockets, nine keyway crank sprockets for easy cam degree- ing, and a seamless, True roller chain.
Part No. Description
Part No.
Description
 CLO9-200
 .925" Long for Old Style 3-Spoke Timing Covers
 CLO9-202
  .640" Long for Newer Style Timing Covers
   SB Chevy Thrust Bearings And Wear Plates
Part No. Description
  CLO9-3500TX9
 SB Chevy, 1955-Up 265-400 with Torrington Bearing
 CLO9-3600TX9
 SB Chevy, Race Billet
with Torrington Bearing, 9 Keyway
 CLO9-3600TX9-10
 SB Chevy, Race Billet with Torrington Bearing, 9 Keyway, .010" Reduced
 CLO9-3545X9
  SB Chevy, 1985-Up 305-350
   CLO9-201
  Steel Wear Plate, .031" Thick
 CLO9-220
 Thrust Bearing, .150" Thick, Replacement for Quick Adjust, Hex-A-Just, Original True and Billet True Timing Sets
   2022-23 PARTS AND ACCESSORIES
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