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Super Damper® Harmonic Dampers








Ford Super Dampers


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

Eliminates torsional crankshaft vibrations
Exceeds SFI 18.1 specs
Laser engraved 360° timing marks
Black zinc chromate finished

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).

Damper Accessories
Internal Balance or External Balance
Small Block Ford Timing Tabs
How to read the Damper charts
Custom Ford Water Pump
Installation Instructions



Ford Dampers
 
  FORD OEM FRONT - 3 BOLT PULLEY
 
  FORD OEM FRONT - 4 BOLT PULLEY
 
STEEL SHEELS
ALUMINUM SHELLS
CRANKSHAFT HUB PART NUMBERS
7.074" OD
6.325" OD
7.074" OD
6.325" OD
3 RING
3 RING
2 RING
3 RING
2 RING
STEEL
ALUM
TOTAL WEIGHT
INERTIA WEIGHT
8.75 lbs
4.50 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
917010
918940
917030
918850
917020
917000
917070
917050
AVG
WEIGHT
2.4 lbs
AVG
WEIGHT
.85 lbs
FORD OEM FRONT
3 BOLT PULLEY
917012
918941
917031
918851
917022
917003
917076
917052
FORD OEM FRONT
4 BOLT PULLEY
 
918930
918007
918017
   
918935
918936
INTERNAL BALANCE DAMPER ASSEMBLY PART NUMBERS
V8 SB (ALL)
6 CYL
[2][8]
CHEVY FRONT 3" C TIMING TAB [5][6]
917514 [2]
917515
917522 [2]
917523 [2]
917491 [2]
917561 [2]
917661
917641
916560 [12]
 
   
918032 [2]
918033 [2]
918011 [2]
918001 [2]
917681
917651
 
916570 [1]
3" C
TIMING TAB
[1][5][6]
917510 [2]
917511
917520 [2]
917521 [2]
917490 [2]
917560 [2]
917660
917640
916560 [1]
   
918020 [2]
918021 [2]
918010 [2]
918000 [2]
917680
917650
 
916570 [1]
3.35" C TIMING TAB
918022 [2]
918023
918024 [2]
918025 [2]
918026 [2]
918027 [2]
918028
918029
916563 [1]
 
3.35" C TIMING TAB
 
918920
918002
918012
   
918923
918925
916561 [10]
 
4" C TIMING TAB
 
918929
918003
918013
   
918927
918928
916564
 
4" B TIMING TAB
 
918921
918004
918014
   
918924
918926
916562
 
4" B TIMING TAB [4]
 
918917
918005
918015
   
918918
918919
916562G [8]
 
V8 FE 332-428 [3]
918310
918311
918320
918321
918290
 
918760
 
916580
 
V8 385 429-460
917620
917621
917630
917631
917600
918780
 
916610
 
V8 '385' 429 - 460 WITH SHORT SNOUT FOR BRYANT CRANKSHAFT [4]
917562
917563
917564
917565
917566
917567
917568
917569
916560G
[12] [8]
PINTO 4 CYL
HUB HAS 2 V-BELT PULLEYS
918262
918262
916920
EXTERNAL BALANCE DAMPER ASSEMBLY PART NUMBERS
V8 SB
ALL FORD EXCEPT '82 & UP
302 HO
28.2 OZ.IN.
3" A OR C TIMING TAB [1] [6] [15]
 
918895 [7]
       
916560 [1]
 
3.35" C TIMING TAB
 
918900
           
916561
 
4" B TIMING TAB
 
918911

USE WHEN STROKING THE 302 HO WITH THE EXTERNAL BALANCE CRANK RETAINS STOCK 302 HO PULLEY LOCATION. 28.2 OZ IN IMBALANCE

916562
 
'82-'93
HO ONLY
34 OZ.IN.
OEM [9]
B TIMING TAB
 
918910

'82 & UP 302 HO ONLY

916562
 

Ford Serpentine Dampers

 

DAMPER ASSEMBLY WITH HUB

SHELL ASSEMBLY
LESS HUB

HUBS
HUBS
STEEL SHELL
ALUM SHELL
7.5" OD
(9.75 lbs)
8.3" OD
6.78" OD
(4.5 lbs)
5.5" OD
6 RIB
8 RIB
10 RIB
STEEL
(2.9 lbs)
STEEL
(2.9 lbs)
'96 - '04 MUSTANG 4.6L [11]
OEM
6 RIB
 
918036
917078
   
916571
 
6 RIB
15% UD
918041
   
916575M
8 RIB
 
918037
 
917079
 
916572
 
'05 - MUSTANG GT 4.6L & 5.4L
OEM
6 RIB
 
918039
917021
   
916565 [13]
 
6 RIB
15% UD
918042
916575
FORD GT 5.4L SUPERCHARGED
10 RIB
918043
917085
916576
GT500 MID 2007+
10 RIB
918045
917085
916576
GT500 MID 2007+ 15%OD
10 RIB
918046 [16]
917102
916576
'93 - '03 7.3L F-250/F-350 POWER STROKE
8 RIB
918889
917036
916754
 



Ford Supercharged Dampers
 
  FORD OEM FRONT - 4 BOLT PULLEY
STEEL SHELLS
ALUMINUM SHELLS
CRANK HUB
7.530" OD
6.325" OD
7.074" OD
6.780" OD
6.325" OD
3 RING
3 RING
STEEL
TOTAL WEIGHT
INERTIA WEIGHT
8.75 LBS
4.50 LBS
6.00 LBS
2.40 LBS
5.45 LBS
3.70 LBS
3.90 LBS
2.40 LBS
INTERNAL BALANCE DAMPER ASSEMBLY PART NUMBERS  
V8 SB - 6 CYL. 4"
918916 [3]
918922
916566A
2B BLOWER DRIVE 74 TEETH
50 MM WITH 25 TOOTH HTD HUB
917032
 
916574
SB BLOWER DRIVE 66 TEETH
50 MM WITH 25 TOOTH HTD HUB
917033
   
916574
MUSTANG COBRA - 4.6 V8 8 RIB
918038
 
916572
MUSTANG ('96 - '04) - 4.6 V8 8 RIB
918037
918572

[1] These dampers have a 2.280 female pulley locating diameter &, upon request are supplied with an adapter to locate existing OEM pulleys with a 2.380 thorough bore. (Part #916559)
[2] Minor modifi cations to water pump may be needed to clear 7” dampers. Most effective water pumps have clearance.
[3] Requires adapter #916581, & shortening the spacer sleeve .375”, to install stock pulleys in the OEM location.
[4] Aftermarket crank with key at front, hub must be honed to fit. Hub has .150 counterbore for full length press fi t.
[5] Ford 3 bolt dampers will accept pulleys with standard Ford 3 bolt 3.3” diameter circle.
[6] For early “A” timing tab, be sure to tell your salesman that the A timing tab is needed with driver’s side timing marks.
[7] Timing marks 0-60° in 1° increments.
[8] This hub is bored straight through with no counterbore for OEM crankshafts with the keyway 1” back. It is intended for aftermarket cranks or “engine builder hone to fi t” full length keys. Request counterbore if using an OEM crankshaft.
[9] 1994 & 1995 have clearance issues with the rack. Part #918910 is 50 oz. in.
[10] Add “G” to part # for aftermarket crank. This hub is bored straight through with no counterbore for OEM crankshafts with the keyway 1” back. It is intended for aftermarket cranks or “engine builder hone to fit” full length keys. Request counterbore if using an OEM crankshaft
[11] Will not work with ‘03 - ‘04 Cobra factory style supercharger drive pulley. Call for the appropriate damper part number.
[12] Add “U” to part # for undersized specifi cations.
[13] Washer #954078 is required.
[14] All serp. application hubs have 3/16 key @ std SB 10° location.
[15] Contact ATI technician for the correct part number when used
with Ford 3-bolt pulleys!
[16] NHRA approved for new Super Cobra Jet in Stock Eliminator.
NOTE! For passenger side timing, add “P” to shell asembly part number.



Internal Balance or External Balance

Part #918910: For 34 oz. in. - 1982 and later 302 HO only. All other Ford Small Blocks use:
  1. 3 timing covers with 3 tab locations (see chart).
  2. 2 pulley styles: 3 bolt or 4 bolt.
  3. 3 different damper lengths: 3”, 3 3/8” with 3 bolt pulleys, and 3 3/8” or 4” with 4 bolt pulleys
  4. External balance units are 28.2 oz.in. 302-351, except 302 HO part #918910 and 918913 which are 50.oz.

Part #918911 (28 oz. in.): If you install a 351 external balance crank in a 302 HO and use the stock 302 HO timing cover. The 28.2 oz. in. units will work on all external balance engines EXCEPT the 1982 and later HO provided:

  1. The timing tab is in the proper place or you can
    fabricate a pointer.
  2. The length is OK if you’re using pulleys.

Small Block Ford Timing Tabs


”A” SB Ford timing tab engines (driver side timing) would most likely be 260 (all), 289 (all), 302-(‘67-’69) and Boss 302 (‘69-’70).


External Balance Damper - 28.2 OZ
Tab
Pulley
Length
918895
A & C
3 BOLT
3"
918911
B
4 BOLT
4"
918900
C
4 BOLT
3-3/8"



  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.
 
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