LS Engine Swap Transmission Adapter Tech Talk with Carl

Deciding on a transmission for an LS swap? Carl, Summit Racing’s tech expert, explains what you’ll need to bolt-up an earlier GM transmission (like a Powerglide, TH350/400, 700R4, Muncie, Richmond, Saginaw, etc.) to a GM LS engine. You may be surprised how straightforward the job is.

[theozman]

This is a no bs video from summit racing. Thanks a bunch guys.

[Knard]

Thank you so much! Under 3min straight to the point!!

[randywhitfield]

YES! All the info needed without repeating the same stuff for an extra 10 minutes. Great video thanks guys!

[robertemmons]

I'm back watching this video again after picking up a 1976 C10 shortbed with the SM465 trans. It looks like that the flywheel and pilot bushing/bearing makes for a simple straight forward install!

Thanks for the info!

[jackstowage]

I wasted my time with other youtubers on their 20 minute videos - everybody wants to be Stacey David eh. Summit bangs it out in under 3 min. Good info

[RodknockRhett]

This video relieved me big time after someone told me that my existing 4L60e won’t fit. I will have to wait and see what engine I end up with to see what I need.

Thanks for this.

[suzukig]

Short, sweet and to the point! 👍👍 But, you missed one option and that's the 4L80e "flat" flywheel, but maybe it came out after this video. Look up Summit ATP z270.

[robertemmons]

Some great info! I'll be checking it out when I begin my LQ4 conversion in my '68 C10.

I'm surprised that after all this time that nobody had caught the major typos in the description page;

"Installing an automatic? You'll need a new flywheel: link to flywheel page.

Manual transmission installs require a new flexplate: link to flexplate page."

[Gothamauto]

So it's all good for Chevrolets, but if you have another GM product trans (BOP, Cadillac)you will have to find or make a bellhousing adaptor. There are a few BOP 700s that might work.

[OMRY]

Hi nice video Great information
I have 1967 cadillc th400 and 429 engine
Do I need any adapter if i install 350 lt1 gen2 to the th400 thank you

[Greatday]

Does summit offer a bellhousing like for drag race application to mat up the LS to and early 4 speed manual transmission. I could not find anything on the summit racing web site.

[yrrag]

Hello. Is there any information on swapping LS 5.3 into Dodge/Chrysler vehicles? Specifically, linking Chrysler Automatic and/or manual transmissions to the motor. I imagine there needs to be some type of adapter and possibly flywheel involved at minimum.

[googlemall]

Straight to the point didn't mention anything about 2004r mating though? Might discourage some people

[NslEntertainment]

What clutch do you recommend for a Saginaw 4 speed with this setup

[calistate-of-mind]

So for the GM performance Flexplate with the spacer. What bolts would i need from summit?

[blessedfamily]

I have a 2010 Cadillac CTS rear wheel drive. Can I get some help/hints on putting a 5.3 LS out of a 2000 Silverado into it ?

[batista]

What if i wanna do the opposite, keep the 350 sbc and get a 4l60e?

[purge_s]

So this is all I need to put a glide on a lm7 5.3 right?

[arleenz]

hello i see that gm now has a 4cyl LS motor. question what 5speed trans will bolt up to it and mount in a front wheel drive config....

[timbradley]

is it possible to swap a 1981 k5 5.7 and 3 gear's transmission
with a 2 door selvrado