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Summit Racing® LS Flexplate Spacers SUM-704000

Summit Racing SUM-704000 - Summit Racing® LS Flexplate Spacers
Made in the USA

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Flexplate Spacer, Crankshaft, Steel, Natural, Chevy, Small Block, LS, Includes Bolts, Kit

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Brand: Summit Racing

Manufacturer's Part Number: SUM-704000

Part Type: Flywheel and Flexplate Shims and Spacers

Product Line: Summit Racing® LS Flexplate Spacers

Summit Racing Part Number: SUM-704000

UPC: 190861012578

Flexplate Shim Material: Steel

Quantity: Sold as a kit.

Notes: For use with early design (Non-LS engine) automatic transmissions, such as a TH350, TH400, 700R4, 4L60, 4L60E or 4L85E, on a Gen III/ IV engine. Will not fit 1999-2000 LQ4 6.0L applications. Includes mounting hardware.

In-Store Pickup: Choose In-store pick-up (OH, NV, GA, TX) on our web site.

Summit Racing® LS flexplate spacers are designed to achieve proper spacing when you're installing an older GM automatic transmission to a LS engine. These spacer and bolt kits are manufactured from high-quality steel and correct the crank to transmission spacing differences between LS and early Chevrolet small block engines.

Warranty

Questions & Answers Ask a Product Question
Q:

If this spacer is supposed to be used between the LS FLEXPLATE and the CONVERTOR, (keeping the ring gear in the proper location for the starter) do you also need spacers between the convertor drive lugs and flexplate? If so, are they included?

Asked by DEAN on January 04, 2018

A:

You will just need longer bolts to bolt the flex plate in due to the extra distance from the spacer. Those bolts are included in the kit.

BOHDI from WV answered on January 08, 2018

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Q:

Putting a 4L60E from a 4.3 behind a 5.3 in an 02 suburban. I'm not the shade tree mechanic, a friend is.
Do we use the flexplate from the 5.3 or the 4.3 with this spacer?

Asked by NATHAN on September 03, 2017

A:

use the 5.3 flex plate with this spacer.

DUSTY from MO answered on September 21, 2017

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Q:

ill be using my 700r to LS3. I understand that I need the spacers but can I use stock flexplate from ls3 or do I need another flexplate? also do I use same converter on 700r or another converter?

Asked by MICHEAL on February 23, 2020

A:

You can use the stock flex plate and converter.

Customer from Unknown Country answered on February 28, 2020

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Q:

What starter will be needed with this now? I cant imagine the bendix will extend almost another 1/2" to reach the new flex plate location?

Asked by PAT on November 13, 2019

A:

Thank you for your question. The Summit 704000 LS flexplate spacer does not require a different starter. The factory starter can remain in the factory position.

Summit RacingSummit Racing Answer - November 14, 2019

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Most Helpful Reviews Review This Product

17 Customer Reviews for Summit Racing SUM-704000 - Summit Racing® LS Flexplate Spacers

Average Customer Review

5 Star

(13)

4 Star

(3)

3 Star

(1)

2 Star

(0)

1 Star

(0)

+See All 17 Reviews

Machined very good. Installed perfect.

Summit RacingSummit Racing Verified Purchase

SUM-704000
I used this to mate my Th 400 10" converter from a standard SBC. With the paint cleaned up on my converter snout this guy fit right in lace. I like the added piece of mind that the adapter is also held in by the hardware. I plan on using this from here on out.

0 of 0 found this review helpful.

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Reviewer: from NJ

Date: April 13, 2020

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Price/Value
Quality

Well made!

Summit RacingSummit Racing Verified Purchase

SUM-704000
I’ve used this before on an LS swap, it’s well made and puts the flywheel exactly where it needs to be.

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Reviewer: from LA

Date: April 05, 2020

Appearance
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Price/Value
Quality

LS flexplate adapter

Summit RacingSummit Racing Verified Purchase

SUM-704000
Item was as described and well made

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Reviewer: from AZ

Date: January 02, 2020

Appearance
Ease of Installation
Price/Value
Quality

Need for any LS Swap with a TH350

Summit RacingSummit Racing Verified Purchase

SUM-704000
Worked well, perfect for the application.

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Reviewer: from IL

Date: August 28, 2019

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Quality

Nice

Summit RacingSummit Racing Verified Purchase

SUM-704000
Easy fix for that little project

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Reviewer: from OK

Date: May 08, 2018

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Ease of Installation
Price/Value
Quality

Some parts are not legal for use in California or other states with similar laws / regulations

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