Drivetrain› Automatic Transmissions and Components

TCI Automotive

SBC 400 Flexplate External balance

$134.95

SKU: T00M 399373

In Stock
In Stock
Ships by Aug 5
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 399373

TCI also offers stock replacement, stamped, heavy-duty flexplates for popular Chrysler, Ford and Chevy applications. TCI Chevy stamped flexplates are .035" thicker than stock, and the starter ring is welded to both sides of the flywheel for additional strength. Constructed from a high tensile strength material, these flywheels resist elongation and cracking. All 168-tooth flywheels have GM dual bolt patterns, are sized for stock 3/8" mounting bolts and can be easily drilled for 7/16" diameter high performance torque converter applications. These machined flexplates are perfect for stock to mild performance applications.

This forged flexplate is for Chevrolet 400 engines. SFI 29.1 approved and externally balanced. 168 Tooth Count. Dual GM Bolt Pattern.

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

The TCI Automotive 399373 is a steel flexplate designed for externally balanced Chevy small block Gen 1 400 cubic inch engines. It features 168 teeth and a dual bolt pattern for torque converters.

This flexplate meets SFI 29.1 specifications and is suitable for both street and racing applications. It is designed with a 2-piece rear main seal style.

Fitment

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Specifications

BrandTCI Automotive
Part NumberT00M 399373

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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