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#91628907
$73.99
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2004R, 700R4, TH350
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Return PolicyMates 60° Chevy V6 to Chevy Turbo 350 transmission. Approximately 1/8” thick. For TH350 transmission application.
Application
The "T" or mushroom shaped adapter is the converter adapter. The small end presses into the rear of the V6 crank and the larger I.D. then serves as the pilot for the center hub of the 350 torque converter.
GM used 2 bolt circles for their torque converters (10.75" and 11.5") and most V8 flywheels are double drilled to accept either bolt pattern. Some heavy duty applications, like TH400 big block trucks, used the larger bolt pattern. The V6 flywheel should share the standard small bolt circle of the TH350 converter.
On some applications it may be necessary to drill new (or slot the existing) holes in the V6 flywheel to match the torque converter used. The pilot adapter keeps the converter centered in the rear of the crankshaft, the bolts do not perform that function. It is not a difficult operation, and can be accomplished at home with a drill press, or by any competent machinist. Instructions are included.
The small round machined piece is the center adapter for the torque converter pilot hub. The fastener pictured is a special flush head bolt which must be used on the lower passenger side corner of the adapter for clearance in the dowel pin area.
Charts
916-28907 Instructions (pdf)
Guides & Documents
CA WARNING:
Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov
| KEY SPECS | |
|---|---|
| MFG. Part # | 91628907 |
| Brand | Speedway Motors |
4.9
11 Reviews
Customers consistently highlighted the product's perfect fit, robust functionality, and versatility as standout attributes. Many users noted it solved their transmission compatibility issues, allowing various engine and transmission combinations to bolt together seamlessly. Its practicality was lauded, with the product being deemed a time and frustration saver due to flawless adapter bolt fittings, aiding in different car modifications. Its quality was verified by the perfect fit and finish. The product, characterized as great and reasonable priced, was frequently recommended over competitor options. Please note one caution: while the adapter bolted up, there were noted challenges regarding limited room for a flexplate and torque converter in small bellhousing setups.
4.9
11 reviews
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Worked for my application
5.0
a month ago
Mike
New York
Verified
Used this to bolt a nv3500 transmission to a gm 3800 v6 engine. Only some minor modifications were needed.
Would Recommend
Holden v6 to th400
5.0
a year ago
Mr king
Australia
Verified
Hello mates from Australia this works for mating a th400/350 or glide to our l67 or v6 Ecotec very cheap great product
Would Recommend
Looks good worked perfect
5.0
5 years ago
Badbowtie riley
Norfolk ne
Verified
Used it to put th350 behind a 2.8 v6
Would Recommend
Yes
5.0
6 years ago
Debbie
Indiana
Verified
They had the part that I needed. The customer service is great.
Would Recommend
This adapter solved my problem
5.0
8 years ago
Sparky
ON
Verified
Fit and finish is perfect.allowed the use of a 90° sbc bolt pattern th700r4 transmission to bolt to a 60° cadillac 4.9 engine.works perfectly.
Would Recommend
Adapter Plate Fit Was Perfect
5.0
8 years ago
RogueDave
Waterloo IA
Verified
Would recommend to anyone..
Speedway treats you right.
4.0
8 years ago
Mike
Valley City ND
Verified
Exactly what I ordered
Saved time and frustration
5.0
8 years ago
Thamesvan
Oklahoma
Verified
Adapter bolted up perfectly. I actually used it to bolt a Chevy metric trans to a Pontiac block
Would Recommend
v6 th350 adaptor
5.0
10 years ago
joeo3800turbo
quakertown pa
Great product. Working awesome mounting my th350 to a v6 with the 60 degree housing...so worth it
Would Recommend
Great product
5.0
10 years ago
Robthezukman
Williams az
Verified
Great product and reasonable priced
Would Recommend
Showing 10 of 11 reviews
37 Questions • 12 Answers
91628907 Adapter fitment. I have a GM3800 V6 L67 60 degree transmission mount engine. I would like to adapt TH350 transmission to this block. Would this work or is there a different adapter. Thanks
by Johnny1
• 3 years ago
1 answer
View Answer
My 4l65e torque converter has a pilot hub diameter of 1.073. Will the hub adapter fit this torque converter?
by Rob
• 4 years ago
1 answer
View Answer
Will the adapter allow me to mate 91 Chevy 3.1l to a Chevy sm465, will this work for me?
by Jeffery
• 7 years ago
1 answer
View Answer
would this work on manual transmissions?
by omatic
• 7 years ago
1 answer
View Answer
So this is meant for a 60° engine to 90° transmission but can it be used in reverse as in a 90° engine like the 4.3 to a 60° transmission without any modifications to the adapter?
by 4.3 vortec swappin
• 7 years ago
1 answer
View Answer
Can I mate a '89 2.8 v6 from a celebrity to a 4l60 transmission with this? If not, what parts will I need? Is it even possible? I'm new to this stuff.
by Jonnylectron
• 7 years ago
1 answer
View Answer
Will this allow me to use my 2.8 700r4 on my 327sbc and I'll b running a stall converter what all do I need to make it work
by Jessie
• 7 years ago
1 answer
View Answer
Seeing as this is for The gm 60° with the gm metric bellhousing would this work on the 2.2 in my 94 S10 that shares the same pattern? Looking at options for keeping the 4 cyclinder but making 4wd without a devorced unit. Thanks!
by EDuBz
• 8 years ago
2 answers
View Answers
I am looking to install a 700r4 that can off of a 2.8L v6 chevy, into a firebird with a 403 Oldsmobile engine will this adapter work. Thank you
by azbird
• 8 years ago
2 answers
View Answers
Sorry still need to confirm for sure. I have a 700r4 for a small block, and a 2.8l v6, this will make that work?
by Andrew
• 8 years ago
1 answer
View Answer
10 of 37 questions shown
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2000-2001 Chevy Lumina
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1995-1997 Chevy Monte Carlo
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GM LQ1 3.4
1998-1999 Chevy Monte Carlo
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2000-2005 Chevy Monte Carlo
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151 Pontiac Iron Duke I4
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1982 GMC S15
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1986 GMC S15
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1987-1990 GMC S15
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1988-1990 GMC S15 Jimmy
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1966-1968 Jeep CJ6A
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1976-1981 Jeep CJ7
151 Pontiac Iron Duke I4
1982-1983 Jeep CJ7
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1985-1986 Jeep CJ7
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