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ATI Transmission Performance Products

ATI Transmission Performance Products

Born as a local transmission shop, ATI Performance Products forged its reputation as a leading manufacturer of transmission and driveline components on the dragstrip....

Born as a local transmission shop, ATI Performance Products forged its reputation as a leading manufacturer of transmission and driveline components on the dragstrip. ATI transmissions, torque converters, and driveline products are first developed and tested on the dragstrip before making frequent appearances in winners' circles across the country. Summit Racing is your source for the entire ATI product line, including harmonic balancers, flexplates, transmissions, torque converters, shifters, pulley kits, and more. Shop ATI Performance Products at Summit Racing now, then visit the winner's circle later!

Born as a local transmission shop, ATI Performance Products forged its reputation as a leading manufacturer of transmission and driveline components on the dragstrip. ATI transmissions, torque converters, and driveline products are first developed and tested on the dragstrip before making frequent appearances in winners' circles across the country. Summit Racing is your source for the entire ATI product line, including harmonic balancers, flexplates, transmissions, torque converters, shifters, pulley kits, and more. Shop ATI Performance Products at Summit Racing now, then visit the winner's circle later!

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Individual Parts

Results 1 - 25 of 45

Harmonic Balancer, Super Damper, Internal Balance, Aluminum, Black, Chevy, LS, Each

Part Number: ATI-918620

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, Aluminum/Steel, Black, Cadillac, LS-A, Each

Part Number: ATI-918854

4.57 out of 5 stars ( 7 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Serpentine, Internal Balance, Aluminum/Steel, Black, SFI 18.1, Chevy, Pontiac, 5.7L LS

Part Number: ATI-917302

4.71 out of 5 stars ( 7 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, Aluminum/Steel, Chevy, GMC, LS, Each

Part Number: ATI-918629

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, Aluminum/Steel, Black, Chevrolet, Pontiac, with Gen III/IV (LS-based engines). Each

Part Number: ATI-917304

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, Aluminum/Steel, Black, Chevy, 5.7L, Each

Part Number: ATI-917266

4.86 out of 5 stars ( 29 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, Steel, Black, Chevy, Small Block, Each

Part Number: ATI-917246

4.75 out of 5 stars ( 24 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, Aluminum/Steel, Chevy, 6.2L, Each

Part Number: ATI-918628

4.57 out of 5 stars ( 14 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Serpentine, Aluminum, Black Anodized, Internal Balance, 7.48 in. Diameter, Chevy, 4.8, 5.3, 6.0L, Each

Part Number: ATI-918644

4.89 out of 5 stars ( 18 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, Steel, Black, Chevy, 4.8L, 5.3L, 6.0L, Each

Part Number: ATI-917286

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper HTD Drive, Internal Balance, 7.48 in. Diameter, Aluminum/Steel, Black, Laser Etched Markings, Chevy, 4.8-6.0L, Each

Part Number: ATI-918657

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Serpentine, Internal Balance, Aluminum/Steel, Black, SFI 18.1, Chevy, Pontiac, Each

Part Number: ATI-917303

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, Aluminum/Steel, Black, Chevy/Pontiac, LS1/LS2, Each

Part Number: ATI-918852

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Underdrive, Internal Balance, Aluminum, Steel, Black, Chevy, 5.7L, Each

Part Number: ATI-917279

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Underdrive, Internal Balance, Aluminum/Steel, Black, Chevy, 5.7L, Each

Part Number: ATI-917278

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, Steel, Black, Chevy, Pontiac, 5.7L, Each

Part Number: ATI-918853

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, Aluminum, Steel, Chevy, Pontiac, 5.7L, Each

Part Number: ATI-917264

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, Aluminum/Steel, Black, Chevy, Pontiac, 5.7L

Part Number: ATI-917276

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, Aluminum/Steel, Black, GM, Ecotec, Each

Part Number: ATI-917288

Not Yet Reviewed

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, 7.48 in. Dia., 6 Groove with No Air Conditioning, No Supercharger Pulley, Aluminum Shell, 3/16 in. Single Key, Each

Part Number: ATI-918859

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, SFI 18.1, 360 Degree Marking, 7.50 in. Dia., 6-Groove, with A/C, Steel, Chevy, Pontiac, 5.7L Each

Part Number: ATI-917242

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, Aluminum, Black, Chevy, 7.0L, Each

Part Number: ATI-918620U

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, Aluminum/Steel, Chevy, LS1, LS2, LS3, LS6, Each

Part Number: ATI-918847

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Serpentine Series, Internal Engine Balance, Aluminum, Chevy, 5.7L, 6.0L, 6.2L, Each

Part Number: ATI-918848

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air

Harmonic Balancer, Super Damper, Internal Balance, Aluminum/Steel, Black, Chevy/Pontiac, 5.7L, Each

Part Number: ATI-918844

Not Yet Reviewed

Estimated Ship Date: Monday 11/2/2026 if shipped by air

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Estimated Ship Date: Monday 11/2/2026 if shipped by air