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ATI TH400 Transmissions

4.0 out of 5 stars 1 Customer Reviews

ATI Performance Products TH400 transmissions offer great performance for 400 c.i.d. or larger big blocks.

Modifications and options include:

* Fully blueprinted and equipped with high-flow lube circuits, increased torque capacity, and hard chrome oil rings
* Sprags replaced with heavy-duty units
* Clutch packs are assembled for individual applications
* Compu-Flow valve body standard
* Special low-gear sets for increased launch capability
* Lightweight options available to upgrade the transmission

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Results 1 - 6 of 6

TRANSMISSION - STREET/STRIP - CHEVY - 4 EXT

Part Number: ATI-401000

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

Automatic Transmission, TH400, Full Manual Valve Body, ATI SuperCase, Trans-brake, Chevy, Reverse, Each

Part Number: ATI-401603SC

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

Transmission TH-400 Forward Manual 4" Tail

Part Number: ATI-401200

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

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Estimated Ship Date: Feb 4, 2026 if ordered today

Transmission TH-400 Reverse Manual 4" Tail

Part Number: ATI-401300

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

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Estimated Ship Date: Feb 4, 2026 if ordered today

Automatic Transmission, TH400, Full Manual Valve Body, 2.48 First Gear Ratio, Trans-brake, Chevy, Reverse

Part Number: ATI-401603

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

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Estimated Ship Date: Feb 4, 2026 if ordered today

Automatic Transmission, Reverse Shift Pattern, Trans-Brake, Manual Valve Body, Chevy, TH400, Each

Part Number: ATI-401360

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 5, 2026 if ordered today

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Estimated Ship Date: Feb 5, 2026 if ordered today

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