4l60 or 4l80
Thread Starter
Teching In
Joined: Oct 2010
Posts: 38
Likes: 0
From: clilnton, ms
4l60 or 4l80 Trying to decide on a transmission for my car. Either keep the 4l60 and rebuild it or go to a 4l80. Currently my 4l60 has a broken sprag but if I pull it out I plan on rebuilding it and upgrading it, bc its been a year and a half since I rebuilt it. I want a transmission that will hold up to 800hp. I have a 3400lb nitrous car. I like how it does with the 60 but I want something that isn't going to break. I'm looking around $800-$1000 more to upgrade to a 4l80 including the cross member, harness and drive shaft.
TECH Regular
Joined: Jan 2007
Posts: 403
Likes: 17
x2 on the 4l80e. I think at your power level, no matter how well they are built, a 4l60 is going to have a short life.
I don't make nearly the power you do, but I still went with a flt 4l80 in my car and I don't regret it. it is one tough transmission
I don't make nearly the power you do, but I still went with a flt 4l80 in my car and I don't regret it. it is one tough transmission
TECH Regular
Joined: Jan 2007
Posts: 403
Likes: 17
it doesn't take much for an 80e to hold a lot of power. if you get one rebuilt. have the trans builder dual feed the direct clutches, thats the week link on a stock 80e, once you do that, you will have one tough transmission. I don't know if it would hold 800hp at that point, but it's not far off. best thing to do is to talk to a competent trans builder such as roseller, jakes, flt, and they will be able to tell you exactly what needs done for your power level. in the end, a 4l80e that is built for 800 horsepower is going to have a much smaller parts upgrade list vs a 4l60 built for the same power.
Thread Starter
Teching In
Joined: Oct 2010
Posts: 38
Likes: 0
From: clilnton, ms
Thanks for all the input, looks like Its going to be an 80. I am going to order jakes stage 2 rebuild kit with an had forward hub and a billet input shaft. I'm also thinking of ordering this shift kit http://m.summitracing.com/parts/trg-4l80e-hd2/media/images
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI