Engineered to fit all internally balanced Chevy V8 engines, Has a durable steel construction with a 2-piece design, All 168 tooth flexplates have dual GM bolt patterns and are sized for stock 3/8" mounting bolts, Can be easily drilled for 7/16" diameter high performance torque converter applications, each Flexplate has an SFI safety rating of 29.1 TCI Automotive 399273 GM 168-Tooth Internal Balance Flexplate Sku # 282399273 Mfr. Part # 399273 Condition New Brand TCI Automotive Sold Each Details
Flexplates are .035" thicker than stock and the starter ring is welded to both sides of the flexplate for additional strength. Constructed from a high tensile strength material these flexplates resist elongation and cracking. All 168 tooth flexplates have dual GM bolt patterns and are sized for stock 3/8" mounting bolts and can be easily drilled for 7/16" diameter high performance torque converter applications and are SFI 29.1 approved.
- Fits all internally balanced Chevy V8 engines
- SFI approved
- Sold each
Specs MFG. Part # 399273 Tooth Count 168 Engine Balance Internal SFI Rating 29.1 Rear Main Seal Style 2-piece Material Type Steel Sold in Quantity Each GTIN Code 788120008099 Safety Rating SFI 29.1 Reviews Just what I needed Rated by Sam on July 25, 2026
Summary: I used this flexplate for my 496 built with a 4L80E behind it.
Yes, I recommend this product.
I would buy again Rated by Sam on May 18, 2026
Summary: Worked great for my 4L80E behind my 496 stoker
Yes, I recommend this product.
Good flywheel Rated by Jr. on June 02, 2025
Summary: Great for daily driving. Super strong for the price range
Yes, I recommend this product.
Perfect Flexplate for my Big Block!!!! Rated by MegaOctane on December 20, 2024
Summary: I was looking for a SFI flexplate. TCI was always a good brand growing up, and it had been a while so the search took a bit, but I found this one and it didn't disappoint. It bolted right up to my 496ci. It was a gen 5 454 big block originally so single piece rear main, but the firment was dead on. very happy with this and I know from past experience it will put up with the punishment that BBC will be giving it.
Yes, I recommend this product.
I would recommend this flexplate to anyone. Rated by Mark on September 04, 2019
Summary: If you want a flex plate that can hold up to added performance mods then this is the one for you.
Yes, I recommend this product.
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