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  ATI Harmonic Balancer 4.6 / 5.4 3V 6 Rib




 
List Price: $479.79
Our Price: $389.57
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Product Code: ATI918039
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Description
 
#918039 - 4.6 / 5.4 FORD 3V 6 RIB BALANCER 6.780" ALUMINUM SHELL
 
ATI Damper Technology

The patented ATI Super Damper® is the only harmonic damper designed exclusively for high performance engines. The proven elastomer design is actually two dampers in one: a 4" inner diameter and a 5-1/2", 6 3/8", 7", or 8" diameter outer damper in two shells that bolt to the crank hub.

All ATI Super Dampers® feature a replaceable bolt-in crank hub. Shells are black zinc chromate finished, with computer controlled, laser engraved 360° timing marks.

All units are SFI manufacturer certified and exceed SFI spec. 18-1. The patented Super Damper® also gives you guaranteed performance. Your car will run as fast or faster than with your present damper or your money back. Dyno tests have proven the Super Damper® will allow the engine to produce as much as 45 HP over a Fluidampr at 7,500 RPMs and commonly 12 to 30 HP over OEM and other aftermarket brands.
 
For years major manufacturers have used the elastomer-type damper design. These conventional, single-strip elastomer dampers have proven very effective on OEM applications operated at low RPM's. They were also surprisingly effective at high RPM's.

Many engineering studies have shown that elastomer style dampers to be the far superior to the friction type and markedly better than the viscous type in controlling vibrations. 

Conventional single strip elastomer dampers are not rebuildable. The main problem with this type of damper is a loss of certain controls inherent in the manufacturing process. An inertia weight pressed with a rubber insulator to the crank hub allows the possibility of the ring to move in its relation to the keyway.
It is also impossible to maintain the concentricity of the inertia ring during manufacturing. The ring must be machined after it's pressed to the hub, then balanced after machining. When it comes loose, imbalance could occur. Hundreds of these OEM imitation SFI approved dampers have failed in service on high RPM engines.

Viscous fluid dampers are sealed. The inertia weight can become locked by bearing failure or, more commonly, from the silicone turning to a solid mass. Your first warning of damper failure will probably be a broken crankshaft resulting in the replacement of your damper AND the engine. Viscous fluid dampers are not only ineffective but are actually detrimental at high RPM's.

The solution? The ATI Torsional Super Damper® - the unconventional, unbonded elastomer Super Damper™ that is actually 2 dampers in 1 diameter.

The ATI Super Damper®, U.S. Patent #5,425,287, is the only damper designed exclusively for high RPM performance engines. The proven elastomer design is actually two dampers in one: a 4" inner diameter and a 7" diameter damper contained in 2 shells that bolt to the crank hub. The inner and outer shells are available in steel and in aluminum to contain the steel inertia weight.

The inertia weight has 8 computer-machined grooves to retain the proper durometer o-rings (dyno tested for each application), and installed at ATI. O-ring life has been tested to over 3 million cycles in Nextel Cup competition (6500+ RPM, 500+ miles) and 10 years (188 - 11 round weekends) in drag racing. The unit is rebuildable to new specifications by installing new O-rings.

Extensive dyno and on-the-track testing by ATI, GM, Toyota Racing Development (TRD), and NASCAR engine builders have proven the Super Damper® far superior to all other designs, especially on engines that turn over 6,000 RPM— making it the damper of choice in NASCAR.
 
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.


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ARP 4.6 / 5.4 Harmonic Balancer Bolt
Our Price: $28.77

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