Product Summary

Many Engines, 2004R, 700R4, TH350, TH400, Steel

  • Fits and adapts 1966 and newer Buick, Olds, Pontiac, and Cadillac TH350 or TH400 to 1962 and newer Chevy engines
  • Will also adapt a 700R4 to a '70-'77 Pontiac 455
  • Premium steel construction
  • Zinc-plated for corrosion prevention

Key Specs

MFG. Part #91628908
BrandSpeedway Motors
Material TypeSteel
FinishZinc Plated

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Speedway Motors 91628908 Details

Turbo-Hydramatic GM Transmission Adapter Plate

Adapts 1966-up Olds, Buick, Pontiac, & Cadillac Turbo 350 and Turbo 400 (TH350 or TH400) automatic transmissions to 1962-up Chevy engines (or vice versa). Will also adapt a 700R4 to a '70-'77 Pontiac 455 (however will not work on the smaller belhousings supplied on the 2.5, 2.8, and 3.1 liter engines).

 

  • Adapt Turbo 350 and Turbo 400 transmissions to 1962-up Chevy engines.
  • Suitable for 1966-up Olds, Buick, Pontiac, and Cadillac transmissions.
  • Compatible with 700R4 on '70-'77 Pontiac 455 engines.
  • Not suitable for smaller belhousings on 2.5, 2.8, and 3.1 liter engines.
  • Kit includes adapter plate and bolts, approximately 1/8" thick.

Speedway Motors 91628908 Specifications

KEY SPECS
MFG. Part #91628908
BrandSpeedway Motors
Material TypeSteel
FinishZinc Plated
GENERAL
Overall Width15.750"
Overall Thickness.125"
Hardware IncludedYes
NotesAdapts '66 and newer Buick, Olds, Pontiac, and Cadillac TH350 or TH400 to '62 and newer Chevy engines (and vice versa). Will also adapt a 700R4 to a '70-'77 Pontiac 455.
Sold in QuantityEach

Ratings & Reviews

4.9

48 Reviews

Customers say

Customers unanimously appreciated the product's quality and adaptability. They highlighted its easy installation and practicality in varied applications, praising its ability to work seamlessly on different engine and transmission combinations. The adapter was particularly appreciated for its money-saving attributes, allowing them to use cheaper or available parts effectively. It was also noted for its sturdy construction and fitting accuracy. Some customers highlighted the need for minor adjustments or the addition of spacers for optimal use. Above all, customers found the product reliable and would buy it again, suggesting its superior performance compared to competitors - a testament to its practicality and quality. However, some users suggested the inclusion of instructions for less experienced users.