ATI Super Dampers for Buick Engines


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Super Damper^® Harmonic Dampers

Buick Super Dampers

The patented ATI Super Damper is designed exclusively for high performance engines.

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

Inner and outer shells are available in aluminum or steel contain the steel inertia weight. The 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
Installation Instructions

		STEEL SHELLS		ALUMINUM SHELLS		CRANKSHAFT HUBS
		7.074" OD	6.325" OD	7.074" OD
		3 RING		3 RING		STEEL AVG WEIGHT 2.4 LBS
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
DAMPER ONLY LESS HUB PART NUMBERS
CHEVROLET FRONT		917010	918940	917030	918850
INTERNAL BALANCE DAMPER ASSEMBLY PART NUMBERS
BUICK V6 & V8 (ALL) EXCEPT 430 & 455	DRY SUMP		918571			916290
BUICK V8 430-455 [1]					918171	916230
BUICK GRAND NATIONAL, T-TYPE GNX - '82-'87				917456 [3]		916284
EXTERNAL BALANCE DAMPER ASSEMBLY PART NUMBERS
BUICK GRAND NATIONAL, T-TYPE GNX - '82-'87		917455 [3]				916284
BUICK V6 (430-455) [1]		918400				916230

Buick engines require mounting damper face forward of the OEM location to clear the timing cover for external balance dampers. 403-455 is .725” forward of the OEM location; 265-350 V8 and 252 V6 are 1.250” forward of the OEM location.
Machining the timing cover may be required for clearance.
Includes 6 groove aluminum 6.445" OD serpentine pulley #916287

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