Regards to the lm7 ls build?

2003 CHEVROLET SILVERADO
279,000 MILES • 5.3L • V8 • 2WD • AUTOMATIC
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SHANE WALKER
  • MEMBER
  • 3 POSTS
So, I've been watching the lm7 ls 5.3 build you guys have and was wondering if I followed the build all the way which transmission would be best to put behind it the stock 4l60e or something else?
Apr 8, 2023 at 2:06 AM
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RENEE L
  • MEMBER
  • 1,260 POSTS
Hello,

I forwarded your question to Ryan, our YouTube content creator/talent. He will get back to you shortly.

Thank you,

Renee
Apr 8, 2023 at 3:53 AM
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SHANE WALKER
  • MEMBER
  • 3 POSTS
Thank you!
Apr 8, 2023 at 6:53 AM
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RYAN L
  • ✓Experienced Mechanic
  • 272 POSTS
Hey Shane!

Thanks so much for watching the series! To answer your question the 4l60E is a decent option, however there are people on the internet that claim it is not very strong. Personally, I like the 4l60E but I am really gentle on things. So, a stronger but more expensive option is the 4l80E. But do not discount an older transmission. I love the Turbo 350 I put behind our LS and they are pretty cheap with no electrics. You just need a different flex plate.

Best,
Ryan
Apr 10, 2023 at 7:46 AM
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SHANE WALKER
  • MEMBER
  • 3 POSTS
Awesome man, thank you, I'm putting this engine in my daily driver 03 Silverado so I may go the 4l80e since I'm a little bit more lead footed (: I appreciate the info.
Apr 10, 2023 at 11:01 AM
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RYAN L
  • ✓Experienced Mechanic
  • 272 POSTS
No problem! Then yes, the 4l80E is going to be your best bet!

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Apr 11, 2023 at 2:59 AM
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