Gen III GM LS V8 to TH350/700R4 Transmission Adapter Kit

Description

This kit includes the parts required to bolt a GM TH350, 700R4, 200-4R, or Powerglide transmission behind a Gen III LS engine, Includes flex plate, torque converter adapter sleeve, flex plate bolts, and torque converter bolts, Works with 10.75" and 11.066" (11.1") torque converter bolt patterns, Works with factory LS starter to reduce conversion costs, Flexplate is .035" thicker than stock which meets SFI 29.1 certification
Gen III GM LS V8 to TH350/700R4 Transmission Adapter Kit
Sku # 91604000
Mfr. Part # 91604000
Condition
New
Brand
Speedway Motors
Sold
Kit
Details
Notes
May not work with some 1999-2000 LQ4 6.0 LS engines, specifically ones that came with a 4L80E automatic as they require a flat flexplate due to the "tall" crank flange.
Info
Make your Gen III LS swap a breeze with this complete adapter kit for early GM automatic transmissions. These flexplate adapters are engineered to handle extreme duty applications and designed to take the punishment of today's high horsepower Gen III engines. The 4mm thick centerplate provides a solid foundation (that's 0.035" thicker than stock). Ring gears are precision welded to meet SFI 29.1 specifications, utilizing robotic cold-welding processes. These flex plates are inspected throughout the manufacturing cycle to ensure a high quality, safe end product.
For 1997-07 GM LS1/LS6 engines (up to '09 for LS2) and 4.8/5.3/6.0 truck engines including L33, L59, LM4, LM7, LQ4, LQ9, and LR4. Adapts all of these engines to TH350, 700R-4, 200-4R, 4L60 and Powerglide
transmissions that originally came behind a non-LS engine
(such as a SBC or BBC V8).
Kit Includes:
(1) Trans Adapter Flexplate
GM LS Gen II to early GM 3/4 speed automatic
Works with 10.75" & 11.066" (11.1") bolt-pattern torque converters
SFI 29.1 certified
Forged 1-piece steel ring gears
168 tooth
Works with stock LS starter motor
(6) Gen III LS Flexplate Bolts
Fits Chevrolet Gen III/LS Series V8
Exclusive, flat, 12-point head design
Has a 200,000 psi rating
M11 x 1.5
(1) LS Crank Sleeve Adapter
Overall Height: 1.04"
Inside Diameter: 1.47"
Diameter Small End: 1.70"
Diameter Big End: 2.00"
Material Type: Steel
(1) Torque Converter Bolt Kit
Under Head Length: 1.25"
Thread Pitch: 7/16"-20
Wrench Type: 12 Point
Specs
Sold in Quantity
Kit
SFI Rating
29.1
Reviews
I would most definitely buy this product again if i were to
Rated
by Caiden on May 14, 2021
Summary:
Used it to LS swap my 2nd gen camaro
Yes, I recommend this product.
Great products and good help
Rated
by Pistol Pete on April 01, 2021
Summary:
I put an LS motor in a 89 GMC Jimmy and speedway had everything I needed they were very informative and very good help
Yes, I recommend this product.
Works great on a powerglide trans
Rated
by Flash nova on March 23, 2021
Summary:
Nice to have everything you need in one package. Bolted to my powerglide trans behind my 2005 LM7 5.3 I used the 10 3/4 bolt holes . Everything fit perfectly. Also comes with the arp tube of bolt goo . Not to mention it's also SFI what else do you need in a kit ?
Yes, I recommend this product.
great product
Rated
by hoss on November 02, 2020
Summary:
adapted th350 to vortec 350. worked great and easy product ti use
Yes, I recommend this product.
Yes
Rated
by Spike on September 29, 2020
Summary:
Customer Job.
Pros:
Don't have to build the kit on your own.
Yes, I recommend this product.
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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 69 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
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