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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!
Showing In Stock Items. Show All 47 Items.
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Harmonic Balancer, Super Damper, Internal Balance, Aluminum, Black, Chevy, LS, Each
Part Number: ATI-918620
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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
Estimated Ship Date: Monday 11/2/2026 if shipped by air
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