ATI Performance Products Products CW3 Converter Welding Equipment News Order
   
 
 
Home > Products > Super Dampers > Chevrolet Super Dampers

Super Damper® Harmonic Dampers


The patented ATI Super Damper is the only crankshaft damper designed exclusively for high performance Chevy engines.

  • Eliminates torsional crankshaft vibrations
  • Exceeds SFI 18.1 specs
  • Black zinc chromate finished
  • OEM equipment on ZZ572 GM Crate Engines
  • Tunable, rebuildable, and extremely efficient at ALL RPM
  • Laser engraved 360° timing marks

Inner and outer shells are available in aluminum or steel, and contain a steel inertia weight. This inertia weight has six (2-ring design) or eight (3-ring design) computer machined grooves to retain the proper durometer O-rings (dyno tested for each application).

If you need a Chevy damper for a serpentine belt set-up, see our Serpentine Damper Guide: Serpentine Dampers

Damper Accessories
LS1 Crank Pin Drill Fixture Kit
Damper Installation Instructions
How to read the Damper charts


Chevy Super Damper

Chevy Dampers
 
  CHEVROLET FRONT FOR HUB WITH INNER SHELL
 
  LIGHT STEEL DAMPER: -4.5 LBS INIERTIA WEIGHT

 
STEEL SHELLS
ALUMINUM SHELLS
CRANKSHAFT HUB PART NUMBERS
8.074" OD
8.074" OD
7.074" OD
6.325" OD
7.074" OD
6.325" OD
7.074" OD
6.325" OD
3 RING
2 RING
3 RING
2 RING
3 RING
2 RING
STEEL
ALUM
STEEL WITH INNER SHELL
TOTAL WEIGHT
INERTIA WEIGHT
11.00 lbs
7.70 lbs
8.75 lbs
4.50 lbs
6.00 lbs
2.40 lbs
7.00 lbs
2.40 lbs
6.00 lbs
2.40 lbs
6.25 lbs
4.50 lbs
5.45 lbs
3.70 lbs
5.00 lbs
3.40 lbs
3.75 lbs
2.20 lbs
3.90 lbs
2.40 lbs
3.30 lbs
1.97 lbs
DAMPER ONLY LESS CRANKSHAFT HUB PART NUMBERS
CHEVROLET FRONT [1]
917007
917010
918940
917002
917051
917030
918850
917020
917000
917070
917050
AVG. WEIGHT
2.4 lbs
AVG. WEIGHT
.85 lbs
6-BOLT HEAVY INERTIA RING
917096
                     
CHEVROLET FRONT FOR HUB WITH INNER SHELL [2]
   
917009
                 
   
917011
918942
               
INTERNAL BALANCE DAMPER ASSEMBLY PART NUMBERS
SB V8 1.245" CRANKSHAFT
STANDARD FRONT NO COUNTER
BORE
 
917785
917782
   
917220
917221
917200
917240
917410
917260
916040
   
           
917230
917231
917210
917250
917480
917320
 
916090
 
   
917781
                   
916951 [11]
   
917780
                     
916951 [11]
USE WITH DRY SUMP [4] COUNTER BORE ACCEPTS DRIVE MANDREL
   
917786
917787
   
917202
917204
917206
917208
917412
917262
916044
   
           
917203
917205
917207
917209
917481
917482
 
916091
 
   
917788
917789
                   
916952
USE WITH JESEL BELT DRIVE [5]
           
917232
917233
917234
917235
917236
917237
 
916092
 
USE W/ HILBOURNE FUEL INJ. [3]
   
917251
917252
   
917253
917254
917255
917256
917257
917258
916540
   
LS1
SB V8 1.483" CRANK
USE WITH DRY SUMP [4] COUNTER BORE TO ACCEPT DRIVE MANDREL
   
917777
917776
   
917211
917212
917213
917214
917215
917216
916045
   
           
917321
917322
917323
917324
917325
917326
 
916099
 
SB V8 1.600" CRANK
   
917783
917784
917081
917082
917222
917223
917201
917241
917411
917261
916043
   
           
917224
917225
917226
917227
917228
917229
 
916093
 

V8 BIG BLOCK

STANDARD
OEM FRONT
 
917062
                       
916890 [9]
   
917060 [17]
                     
916890 [9]
   
917065
917061
   
917300
917301
917280
 
918700
 
916010
   
           
917310
917311
917290
 
918720
 
916080
 
V6 60º
STD OEM FRONT
   
917130
917131
   
917140
917141
917090
917240
917190
917180
916170
916180
 
INLINE 6
'53 - '55 SINGLE V-BELT
       
918425 [15]
       
916009
409
     
917781
916951
EXTERNAL BALANCE DAMPER ASSEMBLY PART NUMBERS
HUB
HUB, SHELL & WGHT
HUB & SHELL
V8 SB 400
   
917080
                   
916071-2
916070-2
V8 BB
454-502
MARK IV & GEN 5
STD OEM FRONT
   
917740
                   
916122-2 [10]
916120-2
[12]

[1] These dampers are assembled units with inner shell.
[2] These dampers are outer shell, inertia weight and o-rings. The inner shell is integral with the crank hub.
[3] Hub is 1” longer than standard.
[4] Hubs for these assemblies have a 2.280 counterbore. A standard length crank bolt is used and the mandrel bolts to the 3 pulley mounting holes. This eliminates the 4” - 6” long bolt that is ineffective in retaining torque. These damper assemblies are used 100% by NASCAR Cup, Busch Grand National and most endurance engine builders. Adapter part # 916321 is available for existing mandrels with 1.245” pilot.
[5] Aluminum hubs for these assemblies have a 2.250 seal diameter with a .500 wall thickness and fits inside the Jessel lower pulley. This eliminates hub failure at the keyway on engines driving dry sump pumps and pulleys.
[6] Hub part # 916131A and #916131B have 8mm, 24 tooth HTD belt drives
[7] Use hub part # 916172 for 1.245” crankshaft with BB seal and Chevy bolting.
[8] Use hub part # 916136 for 1.245” crankshaft with BB seal and Chrysler bolting.
[9] Use hub part # 916890K for 1/4” keyway, 180º from standard.
[10] Use hub part # 916122-2K for 1/4” keyway 180º from standard.
[11] Use hub part # 916951K for 3/16” keyway at 180º from standard.
[12] Use hub pt # 916120-2K for dual keyway 3/16” & 180º out, 1/4”.
[13] For steel hub, use hub #916172.
[14] For Comp Cams style belt drive, use a 7” 2 ring damper due to fi tment issues w/ the cam timing adjustment. Hub must be machined to fi t inside lower cam gear.
[15] Non-stock damper - 3 week lead time required.
[16] For equally spaced OEM holes & ignition trigger, use #916134A.
[17] For dampers w/ 1 pc hub & inner shell & 2nd keyway (1/4"), order damper #917060K.
[18] Use part #916087 for Jesel Belt Drive and aluminum hub and part #916088 for Jesel Belt Drive and steel hub.

NOTE: Part# 916098 adapts ATI damper to rear of crankshaft for boat applications

GM Supercharged Dampers
 
  CHRYSLER OEM FRONT BLOWER DRIVE 3/8-24 PULLEY BOLTS
 
  CHEVROLET FRONT - 6 BOLT
 
STEEL SHELLS
ALUMINUM SHELLS
CRANK HUB
7.530" OD
7.074" OD
8.250" OD
7.480" OD
7.074" OD
6.325" OD
3 RING
2 RING
3 RING
2 RING
3 RING
STEEL
TOTAL WEIGHT
INERTIA WEIGHT
8.75 LBS
4.50 LBS
   
6.25 LBS
4.50 LBS
5.45 LBS
3.70 LBS
5.00 LBS
3.40 LBS
3.75 LBS
2.20 LBS
3.00 LBS
2.40 LBS
INTERNAL BALANCE DAMPER ASSEMBLY PART NUMBERS
SB BLOWER DRIVE 2 X 3/16 KEYWAYS
918872E
   
918610E
918611E
918613E
918612E
918609
916133 [1]
SB BLOWER WITH 1.600" CRANKSHAFT
918873E
   
918614E
918615E
918617E
918616E
918618E
916134
SB 6-BOLT 3/18-16 CHEVY FRONT DUAL 3/16" KEYWAYS - BB CHEVY SEAL DIAMETER - USE #925500 COVER  
918869
             
916172
BB BLOWER DRIVE
918871E
   
918870E
918880E
918882E
918881E
916143
BB 6-BOLT 3/8-24 CHEVY FRONT 3/16" & 1/4" KEYWAYS
917064
       
916891
BB BLOWER DRIVE WITH JESEL BELT PULLEY FOR FUEL PUMP DRIVE
918874E
   
918875E
918876E
916144
LS1/LS2 F-BODY CAMARO 6-BOLT PATTERN FOR BLOWERS
918853
         
916031S
LS3 F-BODY 6-BOLT PATTERN FOR BLOWERS    
918635
   
916430M
6-BOLT 3/8-24 CHEVY FRONT DUAL 3/16" KEYWAYS SB 10 GROOVE
917263
         
916853
6-BOLT 3/8-24 CHEVY FRONT DUAL 3/16" & 1/4" KEYWAYS BB 10 GROOVE
917066
         
916891
BB 12 GROOVE
917066-12
       
916891
LS7 Y-BODY 10 GROOVE 10% OD W/OEM A/C PULLEY
918622
916058
EXTERNAL BALANCE DAMPER ASSEMBLY PART NUMBERS
BB BLOWER DRIVE  
917741E
             
916143
BB BLOWER DRIVE WITH JESEL BELT DRIVE HUB HAS 8MM TIMING BELT DRIVE  
917742E
             
916144
3800 V6 6 & 8 GROOVE        
918421
       
916211



GM Y-Body Serpentine Dampers INCLUDES LS1, LS2, LS3, LS6, LS7 & LS9 - LT1, LT4 & LT5
ENGINE
DAMPER
PART #
OUTER
DIAMETER
WEIGHT
(LBS)
SHELL MATERIAL
SHELL #
RIBS
RIB REAR A/C PULLEY #
HUB # [2]
HUB
MATERIAL
LS1
LS2
LS3 [13]
LS6
917246 [6]
7.53"
9.75 LBS
STEEL
917016CSX
6
916734
916032
STEEL
917266 [6]
7.53"
6.75 LBS
ALUM
917074CS
6
916734
916032
STEEL
917278 [1,5,6]
6.78" (10% UD)
4.5 LBS
ALUM
917071CS-44X
6
916732 (10% UD)
916032
STEEL
917279 [1,5,6]
6.78" (10% UD)
4.5 LBS
ALUM
917072CS-44
6
NO A/C
916032
STEEL
917247 [1,5,6]
6.78" (10% UD)
4.5 LBS
ALUM
917072CS-44
6
NO A/C
916036
ALUM
917248 [6]
7.53"
9.75 LBS
STEEL
917015CS
6
DRIVE ON HUB [4]
916033 (60% UD)
STEEL
917267 [6]
7.53"
6.75 LBS
ALUM
917073CS-44
6
DRIVE ON HUB [4]
916033 (60% UD)
STEEL
917218 [6]
7.53"
6.75 LBS
ALUM
917073CS-44
6
DRIVE ON HUB
916038 (60% UD)
ALUM
917249 [1, 6]
6.78" (10% UD)
4.5 LBS
ALUM
917071CS
6
DRIVE ON HUB [4]
916033 (60% UD)
STEEL
917219 [1, 6]
6.78" (10% UD)
4.5 LBS
ALUM
917071CS
6
DRIVE ON HUB
916038 (60% UD)
ALUM
918848 [3]
5.5" (25% UD)
8 LBS
ALUM
6
4 RIB - 916179
916349
STEEL
918847
5.5" (25% UD)
ALUM
6
NO A/C
916954
STEEL
918849
5.5"" (25% UD)
8 LBS
ALUM
916726
6
4 RIB DRY SUMP
916351
STEEL
917289
6.78" (10% UD)
4.5 LBS
ALUM
917071CS
6
HTD 8MM x 28T
916033A
STEEL
917342C
7.53"
9.75 LBS
STEEL
917006
HTD 8MM x 74T
HTD 8MM x 28T
916033C
STEEL
LS7

LS3 W/DRY SUMP [13]
918620
7.53"
6.7 LBS
ALUM
917049
8
4 RIB [11]
916058
STEEL
918620N
7.53"
6.7 LBS
ALUM
917049
8
NO A/C
916058
STEEL
918620U
6.78" (10% UD)
4.5 LBS
ALUM
917049U
8
4 RIB [11]
916058U
STEEL
918620UN
6.78" (10% UD)
4.5 LBS
ALUM
917049UN
8
NO A/C
916058U
STEEL
LS9 ZR1
918634
7.53"
6.7 LBS
ALUM
917097
8
6 RIB [11]
916107
STEEL
918624 [12]
8.36" (14% OD)
6.7 LBS
ALUM
917093
8
6 RIB [11]
916107
STEEL
LT1 LT4
[7] [10]
917274
7.53"
9.75 LBS
STEEL
917015
6
916096A [8] [9]
STEEL
917269
7.53"
6.75 LBS
ALUM
917073
6
916096A [8] [9]
STEEL
917275
6.78"
4.5 LBS
ALUM
91707144
6
916096A [8] [9]
STEEL
917273
6.78"
4.5 LBS
ALUM
91707144
6
916094
ALUM
LT5 - ZR1
917298
6.78"
4.5 LBS
ALUM
6
916101
STEEL

[1] Requires shorter serpentine belt. Goodyear pt #4060785 for accessories & 4040405 for AC.
[2] All hubs have 3/16 key @ std SB 10° location. Please note: 8 groove & 10 groove shell assemblies are available for supercharger applications. Consult your ATI salesman. #917017 (7 1/2” diameter, 8 groove, steel) #917018 (7 1/2” diameter, 10 groove, steel) #917075 (6 3/4” diameter, 8 groove, aluminum)
[3] Requires shorter belts: Gates #K060775 - 6 rib, #K040410 - 8 rib
[4] Use hub part # 916033A for integral 8mm 28 tooth HTD pulley.
[5] Contains 40 durometer rubber. Not for full race engines. Specify 66 rubber or call.
[6] Damper assemblies have all countersunk bolts so nothing protrudes past front of damper. If you have an older damper and are ordering a new shell assembly only, you must cut a .090” x 45° chamfer on the front of your hub. ATI can also perform this operation for $40.
  [7] Dampers furnished with #916320 hub spacer. For ‘97 & up Camaro/Firebird or ‘96 & up Corvette engine with a reluctor wheel; discard spacer provided.
[8] For hubs with a 6 hole bolt pattern and 2.25 seal, use hub #916049B for B body, 916048B for F body and 916096B for Y body.
[9] Hubs are made of heat-treated alloy steel.
[10] Washer #953070 is required with LT1 hubs and is shipped with dampers.
[11] Non-removable A/C pulley - OEM diameter.
[12] Contact Lingenfelter for proper belt set-up.
[13] 2010 LS3 Corvette Grand Sport coupes w/Manual Transmissions come equipped with a Dry Sump system, so an LS7 style damper is required.


GM F-Body Serpentine Dampers INCLUDES LS1, LS2, LS3, LS6, & LS7 - LT1 & LT4
ENGINE
DAMPER
PART #
OUTER
DIAMETER
WEIGHT
SHELL MATERIAL
SHELL #
RIBS
4 RIB REAR A/C PULLEY #
HUB # [1]
HUB MATERIAL
LS1
917242
7.53"
9.75 lbs
STEEL
917015
6
916734
916031
STEEL
917264
7.53"
6.75 lbs
ALUM
917073
6
916734
916031
STEEL
917276 [3][4]
6.78" (10% UD)
4.5 lbs
ALUM
917071-44
6
916732
916031
STEEL
917277 [3][4]
6.78" (10% UD)
4.5 lbs
ALUM
917071-44
6
NO A/C
916031
STEEL
917243 [3][4]
6.78" (10% UD)
4.5 lbs
ALUM
917071-44
6
NO A/C
916035
ALUM
917259
7.53"
9.75 lbs
STEEL
917015
6
DRIVE ON HUB
916037 (60% UD)
STEEL
917238
7.53"
6.75 lbs
ALUM
917073
6
DRIVE ON HUB
916037 (60% UD)
STEEL
917265
7.53"
6.75 lbs
ALUM
917073
6
DRIVE ON HUB
916034 (60% UD)
ALUM
917239
6.78" (10% UD)
4.5 lbs
ALUM
917071-44
6
DRIVE ON HUB
916037 (60% UD)
STEEL
917245
6.78" (10% UD)
4.5 lbs
ALUM
917071-44
6
DRIVE ON HUB
916034 (60% UD)
ALUM
918845 [6]
5.5" (25% UD)
 
ALUM
6
916179 (10% UD)
916347
STEEL
918844 [6]
5.5" (25% UD)
 
ALUM
6
NO A/C
916347
STEEL
918852 [5]
7.53"
6.75 lbs
ALUM
917073
6
HTD 8MM x 25T
916037A [2]
STEEL
LT1 LT4
[7] [10]
917270
7.53"
9.75 lbs
STEEL
917015
6
916047A [8,9,11]
STEEL
917268
7.53"
6.75 lbs
ALUM
917073
6
916047A [8,9,11]
STEEL
917271 [12]
6.78" (10% UD)
4.5 lbs
ALUM
917071-44
6
916047A [8,9,11]
STEEL
917272 [12]
6.78" (10% UD)
4.5 lbs
ALUM
917071-44
6
916094
ALUM

[1] All hubs have 3/16 key @ std SB 10° location. Please note: 8 groove & 10 groove shell assemblies are available for supercharger applications. Consult your ATI salesman. #917017 (7 1/2” diameter, 8 groove, steel) #917018 (7 1/2” diameter, 10 groove, steel) #917075 (6 3/4” diameter, 8 groove, aluminum)
[2] Steel hub #916037A has 8mm, 25 tooth HTD belt drive instead of serpentine.
[3] Contains 40 durometer rubber. Not for full race engines. Specify 66 rubber or call.
[4] Belt #s: A/C 4040390, and Accessories 4060775
[5] Requires 1.25” longer crank bolt. (INCLUDED)
[6] Requires shorter belts: Gates #K060760 - 6 rib, #K040378 - 8 rib
  [7] Dampers furnished with #916320 hub spacer. For ‘97 & up Camaro/Firebird or ‘96 & up Corvette engine with a reluctor wheel; discard spacer provided.
[8] For hubs with a 6 hole bolt pattern and 2.25 seal, use hub #916049B for B body, 916048B for F body and 916096B for Y body.
[9] Hubs are made of heat-treated alloy steel.
[10] Washer #953070 is required with LT1 hubs and is shipped with dampers.
[11] This hub has a 3-bolt pulley pattern. For a 6-bolt pattern, use hub # 916048A.

[12] 10% UD - Requires Belt - Dayco #5060625, Goodyear #4060625, Delco #SK625.


Camaro Z-Body Serpentine Dampers
ENGINE
DAMPER
PART #
OUTER
DIAMETER
WEIGHT
SHELL MATERIAL
SHELL #
RIBS
6 RIB REAR A/C PULLEY #
HUB #
HUB
MATERIAL
LS3
918628
7.48"
13 lbs
ALUMINUM
917073
6
916734B
916430
STEEL
918629
6.78" (10% UD) [1]
4.5 lbs
ALUMINUM
917071
6
916734B
916430
STEEL
V6 2010 [2]
918636
7.07"
-
ALUMINUM
917099
916115
916114
STEEL
918637
7.07"
-
ALUMINUM
917099
916116 (10%UD)
916114
STEEL
918638
7.07"
-
ALUMINUM
917099
916117 (25% UD)
916114
STEEL
[1] Only OEM A/C pulley size available LS3 Camaro.
[2] Includes timing cover seal (#973136) and seal installer (#916113).


GM B-Body LT1 Serpentine Dampers IMPALA & CAPRICE
ENGINE
DAMPER
PART #
OUTER
DIAMETER
WEIGHT
SHELL MATERIAL
SHELL #
RIBS
4 RIB REAR A/C PULLEY #
HUB # [3]
HUB MATERIAL
LT1 [1]
917327
6.78" (10% UD) [2]
4.5 LBS
ALUMINUM
917071-44
6
916049A [4] [5]
STEEL
[1] Due to variations in GM’s production, the spacer provided may or may not be needed.
[2] Damper is 10% UD from OEM. Use belt #4060635.
[3] All hubs have 3/16 key @ std SB 10° location. Please note: 8 groove & 10 groove shell assemblies are available for supercharger applications. Consult your ATI salesman.
  #917017 (7 1/2” diameter, 8 groove, steel) #917018 (7 1/2” diam., 10 groove, steel) #917075 (6 3/4” dia., 8 rib alum)
[4] For hubs with a 6 hole bolt pattern and 2.25 seal, use hub #916049B for B body,
[5] Hubs are made of heat-treated alloy steel.


Cadillac CTS-V LS2, LS6, LS-A Serpentine Dampers
ENGINE
DAMPER
PART #
OUTER
DIAMETER
WEIGHT
SHELL MATERIAL
SHELL #
RIBS
4 RIB REAR A/C PULLEY #
HUB #
HUB
MATERIAL
'04-'07 LS2 LS6
917266 [2]
7.53" (OEM)
6.75 lbs
ALUMINUM
916032
STEEL
917278
6.78" (10% UD)
4.50 lbs
ALUMINUM
916032
STEEL
'09 LSA
918854 [1]
7.53" (OEM)
6.75 lbs
ALUMINUM
916032-M3
STEEL
[1] No supercharger pulley supplied. Must add 916105, 916106 pulley of your choice.
[2] Damper assemblies have all countersunk bolts so nothing protrudes past front of damper. If you have an older damper and are ordering a new shell
assembly only, you must cut a .090” x 45° chamfer on the front of your hub. ATI can also perform this operation for $40 if you send your hub in.


Pontiac GTO LS1/LS2 Serpentine Dampers
ENGINE
DAMPER
PART #
OUTER
DIAMETER
WEIGHT
SHELL MATERIAL
SHELL #
RIBS
4 RIB REAR A/C PULLEY #
HUB #
HUB
MATERIAL
LS1/LS2 5.7L, 6.0L
917276 [1][2]
6.78" (10% UD)
4.5 lbs
ALUMINUM
917071-44
6
916732 (10% UD)
916031
STEEL
[1] Contains 40 durometer rubber. Not for full race engines. Specify 66 rubber or call.
[2] Belt #s: A/C 4040390, and Accessories 4060775

C & K Body, SSR & Trailblazer SS LS1/LS2 Serpentine Dampers

ENGINE
DAMPER
PART #
OUTER
DIAMETER
WEIGHT
SHELL MATERIAL
SHELL #
RIBS
4 RIB REAR A/C PULLEY #
HUB # [1]
HUB
MATERIAL
LS1/LS2 4.6L, 5.3L, 6.0L
917286
7.53"
9.75 lbs
STEEL
917015
6
916734
916430M
STEEL
[1] All hubs have 3/16 key @ std SB 10O location. Please note: 8 groove & 10 groove shell assemblies are available for supercharger applications. Consult your ATI salesman. #917017 (7 1/2” diameter, 8 groove, steel) #917018 (7 1/2” diameter, 10 groove, steel) #917075 (6 3/4” diameter, 8 groove, aluminum)


Chevy Duramax Diesel Dampers
ENGINE
DAMPER
PART #
OUTER
DIAMETER
WEIGHT
SHELL MATERIAL
SHELL #
RIBS
HUB #
HUB
MATERIAL
2001 - 2005, EXT BAL
917371
7.5" OD
9.75 lbs
STEEL
917371S
8
916081
STEEL
2006 - PRESENT, EXT BAL
917369
7.5" OD
9.75 lbs
STEEL
917369S
8
916081
STEEL


GM Ecotec Serpentine Dampers
ENGINE
DAMPER
PART #
OUTER
DIAMETER
WEIGHT
SHELL MATERIAL
SHELL #
RIBS
HUB # [1]
HUB
MATERIAL
4 CYL 2.2L ECOTEC
917287
6.78" OD
6.75 lbs
ALUMINUM
8
916752
STEEL
917288 [2]
5.5" OD (12% UD)
4.50 lbs
ALUMINUM
6
916753
STEEL
[1] All hubs have 3/16 key @ std SB 10° location. 8 groove shell for supercharged upgrades, OEM 6 groove location.
[2] Damper is 12% UD from stock; not for over 600 HP on the street, 6 groove only



  How to read this chart
  1. Locate the correct manufacturer's chart
  2. Choose the specific engine application listed down the left side of the chart
  3. Determine if the damper needs to be internally or externally balanced ( external balance dampers are constructed of steel only). Black bars that extend horizontally across the entire chart designate these sections
  4. Determine if you need steel or aluminum shells. Labels for this information are listed across the top of the chart in columns 2 and 3.
  5. Once you have determined the shell material, you need to find the outside diameter (OD) of the desired steel or aluminum shell. Then choose between 2 or 3 rings and the desired weight of the damper.
  6. From the far right section of the chart, select either a steel or aluminum hub for your desired engine application. To determine the correct damper assembly part number that intersects is the correct damper assembly.
  7. Assembly part numbers that are color coded correspond to the pulley mount bolt pattern listed near the top of the charts.
 
©2011 ATI Performance Products, Inc • 6747 Whitestone Road • Gwynn Oak, MD 21207 • Phone: 1 (877) 298-5039 • Fax: (410) 298-3579