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ENGINES & COMPONENTS > Harmonic Balancers

ATI

ATI Performance Products

These Super Damper standard harmonic balancers from ATI are specifically designed for high-rpm engines. Their proven elastomer is designed and tuned to eliminate harmful crankshaft harmonics that cause parasitic horsepower loss. They are actually two dampers in one--a 4 in. diameter inner damper and a 6 3/8 in., 7 in., or 8 in. diameter outer damper in two shells that bolt to the crank hub. These dampers are engineered to all but eliminate worn parts and timing problems. They're tunable in the field, rebuildable, and extremely efficient at all rpm.

Item No Description Price
ATI915733 ATI SFI Flexplates
Race-quality flexplates from ATI.
Made in the USA on state-of-the-art CNC equipment, ATI's SFI flexplates are double MIG/TIG-welded with certified American-made materials that far exceed SFI specs for safety. They're manufactured and toleranced from actual OEM drawings to ensure precise fit and location. Each is quality-inspected to exceed the flatness and runout tolerances of the OEM units. They are also precision-balanced on Hines digital equipment with a resolution of 1/10 oz. per inch.
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 $0.00 Backordered
ATI916045 ATI CRANK HUB - ST - LS1
ATI CRANK HUB - ST - LS1
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 $115.95
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ATI917276 ATI Super Damper Serpentine Series Harmonic Balancers
Reduce harmful harmonic vibrations.
Are you looking for maximum engine protection and performance for your serpentine belt application? These ATI Super Damper serpentine harmonic balancers contain grooves for serpentine belts machined into the outer damper shell. The dampers come standard with six outer grooves for standard OEM drive systems. Designed specifically for high-rpm engines, they're tuned to eliminate harmful crankshaft harmonics that cause parasitic horsepower loss. They're tunable in the field, rebuildable, and extremely efficient at all rpm.
>> Compatible with most Makes, Models, and Years 		$442.99
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ATI917277 ATI Super Damper Serpentine Series Harmonic Balancers
Part Number: ATI-917277
Engine Balance: Internal
Balance Style: Neutral
Safety Rating: SFI 18.1
Degree Markings: Yes
Degree Marking Range: 360
Outside Diameter (in): 6.780 in.
Harmonic Balancer Material: Aluminum
Harmonic Balancer Construction: Elastomer
Harmonic Balancer Finish: Black zinc chromate
Mounting Hardware Included: No
Quantity: Sold individually.
Notes: 10 percent underdrive without air conditioning pulley. 40 durometer rubber, not intended for full race engines.
>> Compatible with most Makes, Models, and Years 		$359.99
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ATI917278 ATI Super Damper Serpentine Series Harmonic Balancers
Part Number: ATI-917278
Engine Balance: Internal
Balance Style: Neutral
Safety Rating: SFI 18.1
Degree Markings: Yes
Degree Marking Range: 360
Outside Diameter (in): 6.780 in.
Harmonic Balancer Material: Aluminum/Steel
Harmonic Balancer Construction: Elastomer
Harmonic Balancer Finish: Black zinc chromate
Mounting Hardware Included: No
Quantity: Sold individually.
Notes: Ten percent underdriven. designed for use with air conditioning, requires shorter serpentine belt. Weight is 4.5 lbs.
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 $434.89
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ATI917278 ATI Super Damper Serpentine Series Harmonic Balancers
Part Number: ATI-917278
Engine Balance: Internal
Balance Style: Neutral
Safety Rating: SFI 18.1
Degree Markings: Yes
Degree Marking Range: 360
Outside Diameter (in): 6.780 in.
Harmonic Balancer Material: Aluminum/Steel
Harmonic Balancer Construction: Elastomer
Harmonic Balancer Finish: Black zinc chromate
Mounting Hardware Included: No
Quantity: Sold individually.
Notes: Ten percent underdriven. designed for use with air conditioning, requires shorter serpentine belt. Weight is 4.5 lbs.
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 $434.89
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ATI917279 ATI Super Damper Serpentine Series Harmonic Balancers
Part Number: ATI-917279
Engine Balance: Internal
Balance Style: Neutral
Safety Rating: SFI 18.1
Degree Markings: Yes
Degree Marking Range: 360
Outside Diameter (in): 6.780 in.
Harmonic Balancer Material: Aluminum/Steel
Harmonic Balancer Construction: Elastomer
Harmonic Balancer Finish: Black zinc chromate
Mounting Hardware Included: No
Quantity: Sold individually.
Notes: Ten percent underdriven. designed for use without air conditioning, requires shorter serpentine belt. Weight is 4.5 lbs.

Harmonic Balancer, Underdrive, Internal Balance, Aluminum/Steel, Black, Chevy 1997-2004, Corvette, 5.7L, Each
>> Compatible with most Makes, Models, and Years 		$352.99
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ATI918993 ATI Crankshaft Pin Drill Fixture Kits
Part Number: ATI-918993
Drill Pin Fixture Included: Yes
Drill Pin Fixture Inside Diameter (in): 1.4375 in.
Drill Pin Fixture Material: Billet aluminum
Drill Pin Fixture Finish: Black anodized
Drill Pin Fixture Drill Bit Included: Yes
Drill Pin Fixture Drill Bit Size: 11/64 in.
Quantity: Sold as a kit.

Drill Fixture, Billet Aluminum, 1.4375 in. I.D., 11/64 in. Drill Bit, Kit

Pin your crankshaft for high performance engines.
These ATI crankshaft pin drill fixture kits are designed to pin the crankshaft for high-rpm, supercharged, turbocharged, or high-horsepower nitrous oxide engines. They include a billet aluminum black-anodized drill fixture, a hardened 11/64 in. drill bit, an alignment tool, and pins for the crankshaft.
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 $116.99
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