TCI Automotive 399753 LS1 Engine to GM Auto Transmission Adapter
TCI Automotive 399753 LS1 Engine to GM Auto Transmission Adapter
TCI Automotive

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#282399753

TCI Automotive 399753 LS1 Engine to GM Auto Transmission Adapter

  • Has a 29.1 SFI safety rating certification
  • It is specific to a converter with a 10-1/2" and 11.063" bolt pattern
  • Spacer properly positions the flexplate and supports the converter hub
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$375.95

/each

In Stock

Garage Sale alternatives: from $239.86


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Product Summary

4L60E, 700R4, TH350, TH400, 168 Tooth Count, Steel

  • Has a 29.1 SFI safety rating certification
  • It is specific to a converter with a 10-1/2" and 11.063" bolt pattern
  • Spacer properly positions the flexplate and supports the converter hub
  • Will allow you to bolt a TH350, TH400*, Powerglide, and 700R4 transmission up to your LS-Series engine
  • Flexplate is .035" thicker than stock and the starter ring is welded to both sides of the flexplate for additional strength
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Key Specs

MFG. Part #333753
BrandTCI Automotive
Tooth Count168
SFI Rating29.1
Material TypeSteel
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TCI Automotive 333753 Details

If you want to bolt a TH350, TH400*, Powerglide, and 700R4 transmission up to your LS-Series engine, you need this kit. The spacer properly positions the flexplate and supports the converter hub. For Turbo 350, Turbo 400*, and 700R4 transmission application.

SFI 29.1 approved. Dual bolt patterns: stock LS-Series and small GM bolt pattern.

Kit includes:

  • dual bolt pattern SFI rated flexplate
  • flexplate spacer
  • flexplate to crankshaft bolts
  • instructions

 

Warranty Information

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TCI Automotive provides a limited warranty covering manufacturing defects for 30 days on racing equipment and 90 days on street/strip equipment, valid only for the original purchaser with proof of purchase. Approved transmission fluid and cooler flush products are required, and claims must be authorized through Edelbrock Group Tech Support. The warranty excludes modified, improperly installed or maintained, abused, accident‑damaged, improperly cooled, or unauthorized repaired products.

TCI Automotive 333753 Specifications

KEY SPECS
MFG. Part #333753
BrandTCI Automotive
Tooth Count168
SFI Rating29.1
Material TypeSteel
GENERAL
Sold in QuantityEach
GTIN Code788120030274

Ratings & Reviews

5

3 Reviews

Overall Assessment

Customers highly commend our product for its perfect fit and heavy-duty quality, emphasizing its enduring durability. The product has proven to be highly practical and adaptable, consistently praised for its successful integration in various applications, such as Ls engine and power glide replacements. The proven material quality and the perfect-fit feature of the product have been repeatedly recommended, setting our product apart from competitors. In particular, customers appreciate the product’s compatibility with a '71 Duster race car and an LS2, demonstrating its versatility. Despite a higher price point, customers believe the product's superior features and longevity justify the investment.

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5

3 reviews

5

3

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Perfect fit, heavy duty

5.0

4 years ago

Jt

South dakota

Verified

Little bit expensive but should outlast the motor by far.

Would Recommend

We would buy this product again

5.0

6 years ago

Nacza

Jarvis Ontario Canada

Verified

We used this to swap a Ls engine and power glide into our 71 Duster race car Every thing bolted uo perfectly

Would Recommend

Perfect fit for ls2 to power glide

5.0

8 years ago

Bob

Jersey

Verified

Ls2 to powerglide perfect fit

Would Recommend

Showing 3 of 3 reviews

Questions & Answers

9 Questions • 11 Answers

Will this flex plate work on a lsx454r ?

by None

• 8 years ago

2 answers

View Answers

Do I need to buy Chevrolet Performance 12563532 Flexplate Spacer Shim for LS Engines when purchasing this TCI flexplate

by Ray

• 9 years ago

2 answers

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I have a powerglide, will this kit allow me to use it?

by Austin

• 9 years ago

1 answer

View Answer

will this work in a G8 with the 6L80e?

by Ben

• 10 years ago

1 answer

View Answer

do I need a special converter or will any th400 converter work

by jay

• 11 years ago

1 answer

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will this work with a 10inch converter? I have a ls1 turbo with a powerglise and a 10inch converter is this the kit i need?

by pete123

• 11 years ago

1 answer

View Answer

I have a 2000 gen III LQ9 6.0 with the long snout crank, will this work or is this just for the short snout crank?

by

• 15 years ago

1 answer

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i have a L92/Ls3 truck engine, will i need this to mate my 700r4 to it?

by

• 15 years ago

1 answer

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Why do I need your flex plate when I already have the stock one ?

by Geb

• 15 years ago

1 answer

View Answer

9 of 9 questions shown

Fitment

  • GM LM4

  • GM LS6

  • GM LM7

  • GM LQ9

  • GM LM7

  • GM LQ9

  • GM LM7

  • GM LQ9

  • GM LM7

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • GM LS6

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LQ9

  • GM LQ4

  • GM LM7

  • GM LQ4

  • GM LQ9

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LM4

  • GM LM7

  • GM L59

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L59

  • GM LM7

  • 4.8 Chevy LS V8

  • GM LM4

  • GM LM4

  • GM LM4

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM LQ4

  • GM L33

  • GM L59

  • GM LM7

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LM7

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LM7

  • GM L59

  • GM LM7

  • GM LQ4

  • GM LQ4

  • GM LQ4

Customer Impersonation Script