Drivetrain Clutches and Components

TCI Automotive

FLEXPLATE GM454

$259.39

SKU: T00M 399554

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The TCI Automotive 399554 SFI Flexplate is designed for Big Block Chevy 454 engines with external balance and a 2-piece crank seal. It features a 153-tooth count and a small bolt pattern. This flexplate is constructed from high-tensile strength material to resist elongation and cracking, making it 0.035" thicker than stock for enhanced durability. The starter ring is welded to both sides for additional strength.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandTCI Automotive
Part NumberT00M 399554

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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