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Automatic Transmission Shift Kits
Instead of replacing your automatic transmission’s whole valve body, you can get better performance out of your stock valve body with a transmission shift kit....
Instead of replacing your automatic transmission’s whole valve body, you can get better performance out of your stock valve body with a transmission shift kit. Different manufacturers use different components and techniques, but they all modify the way transmission fluid is routed through the valve body. Some kits are made for racing and performance driving, while others are for towing and heavy-duty hauling. Whatever your application demands, Summit Racing Equipment has the shift kit you need.
Top Brands
When it comes to the complexities of your automatic valve body, you want a manufacturer you can trust. Summit...
Instead of replacing your automatic transmission’s whole valve body, you can get better performance out of your stock valve body with a transmission shift kit. Different manufacturers use different components and techniques, but they all modify the way transmission fluid is routed through the valve body. Some kits are made for racing and performance driving, while others are for towing and heavy-duty hauling. Whatever your application demands, Summit Racing Equipment has the shift kit you need.
Top Brands
When it comes to the complexities of your automatic valve body, you want a manufacturer you can trust. Summit only carries transmission shift kits from top name brands, including TransGo, TCI Auto, B&M, Sonnax, and Performance Automatic.
Showing In Stock Items. Show All 16 Items.
Shift Kit, Performance, Buick, Chevy, Oldsmobile, Pontiac, GMC, TH350C, 1981-91, Kit
Part Number: TRG-350C-1-2
Estimated Ship Date: Today
Estimated Ship Date: Today
Conversion Kit, 1968-69 Impala 3-Spd Automatic Reverse Valve Body Factory Shifter Conversion Kit TH350, TH400, features Slap-Shift function
Part Number: SIW-C350-RVB
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Conversion Kit, 1971-72 Chevelle 3-Spd Automatic Reverse Valve Body Factory Shifter Conversion Kit TH350, TH400, features Slap-Shift function
Part Number: SIW-C350-3RVB
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Conversion Kit, 1968-70 Chevelle 3-Spd Automatic Reverse Valve Body Factory Shifter Conversion Kit TH350, TH400, features Slap-Shift function
Part Number: SIW-C350-2RVB
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Valve Body Repair, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, TH250, TH250C, TH350, TH350C, Kit
Part Number: TRG-SK350
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Shift Kit, Filter, Gaskets, for TH350 or TH350C, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Kit
Part Number: ATP-SK1
Not Yet Reviewed
Estimated Ship Date: May 5, 2026 if ordered today
Estimated Ship Date: May 5, 2026 if ordered today
Transmission Upgrade Kit, Transpak, GM, TH350C, Each
Part Number: BMM-30235
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Transmission Upgrade Kit, Trans-Scat, Chevy, Buick, Oldsmobile, Pontiac, GMC, TH250C, TH350C, Each
Part Number: TCI-326300
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
VALVE BODY KIT
Part Number: PIO-765004
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
VALVE BODY KIT
Part Number: PIO-765007
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
VALVE BODY KIT
Part Number: PIO-765010
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
ATP Automatic Transmission Upgrade Kit
Part Number: ATP-JK1
Not Yet Reviewed
Estimated Ship Date: May 5, 2026 if ordered today
Estimated Ship Date: May 5, 2026 if ordered today
