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lly 5 speed build list

3.5K views 21 replies 5 participants last post by  830king  
#1 ·
okay boys so its time to rebuild my Allison, I have a lly with the 5 speed. I'm making a parts list and looking for some advice. the plan is to have the holding power to have 600-650hp at the wheels. its mainly going to be used for towing with the odd boosted launch.
heres my list so far:
suncoast g-max kit
precision industries torque converter
transgo shift kit
ppe trans cooler
should I put in a billet input?
do I need to do pump mods? if so what kinds?
anything else I'm forgetting?
 
#3 ·
I'm soon to pull the trigger on a trans build for my lly myself. I'm thinking about upgrading up pipes while the trans is out.

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#4 ·
Thanks for the tips guys, yeah trans is coming out for now but when the motor comes out for head gaskets, its getting manifolds/up pipes/y bridge/bigger turbo.
Anyone else go tips on the trans?
 
#5 ·
Who is gonna build it? I'm looking at these builder's and gotta pick one... Mike L at Inglewood trans, Evan at Limitless, Brad at Calvin's, Scott at Screaming Diesel

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#6 ·
Im going to be building it, few of the guys i work with have rebuilt allisons before and are willing to help me with it. Im just looking to fill in the gaps in my parts list and any helpful info
 
#7 ·
I've read that alot of guys upgrade the shift valve (?) springs, they get them from Mike L I believe. Maybe something worth checking into.

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#8 ·
Correct me if im wrong but wouldnt the shift kit be a part of that? Or is there more to it that im missing
 
#9 ·
I don't know for sure, but I've seen quite a bit of talk about Mike's springs.

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#10 ·
Ill have to check into that thanks!
 
#12 ·
Don't use a transgo as well.

If you are gonna do this right, reach out to mike or Evan and ask these questions. Most of what you get here is repeated info from them, but many of us don't have the right answer. Evan or mike definitely do and are widely regarded as the guru's as well as a few other names out there
 
#13 ·
What he ^ said!

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#14 ·
Wicked ill have to look into that! Thanks
 
#16 ·
Did you order a kit yet?

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#17 ·
No i havent, i messaged him tho. Kits 3900 buck for everything i want
 
#18 ·
Who is him?

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#19 ·
Haha sorry, evan at limitless performance
 
#20 ·
Right on man! I just ordered a crate trans from Evan about a week ago. I can't wait!

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#21 ·
Let me know how it holds!
 
#22 ·
From what I heard it will be top notch. It's a couple weeks out yet

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