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But would it be recommended to increase stall despite the engine been bone stock? I do have that 2200-2500 monster converter lying around brand new. May not be the best out there.. but shouldn't be terrible either i guess. The thing im afraid of is increasing the stall speed more than 1k rpm...

Thought i had put that info in.. its a gto ls2+4l65e. Also its bone stock and the car is not regularly used, and never raced.. just cruised and run a few lights for the fun of it. Thanks for all the cleaning tips, given the detail and alternatives mentioned, it seems is a step you shouldn't...

My 4l65e died some months ago, and after debating over going 4l80 and covid and stuff, I ended up rebuilding my original 4l65. Now the thing is I got the transmission rebuilt, but didn’t touch the converter, and realize it should be full of nasty things from the old transmission internals. I have a few...

Hi you all, When i purchased my 81 monte ss clone like 6 years ago, I was way too happy and in short notice, found on ebay a ridetech level 3 full suspension kit, and guess what, pulled the trigger. It was at an important discount, full set, control arms, both swaybars, and those wonderful...

Thats what i was thinking. But how can you tell? Are there any markings on the converter as to check? I also heard (not that I have any experience or knowledge) that same converter might stall at different speed on different engines.. notably bigblocks tend to stall the same converter at...

Thats a whole other story those th2004r. Given im runing ls2 I think 4l60 and 4l80 are my options, and by reading here I think 4l80e is the way to go.

Given i have a stock cam, and not planing to change it in the near future.. Will a stock 80e converter still work? Or u definitely need to upgrade it?

Yeah 3/4rd but since it was a bone stock gto.. no towing on this one!

First, thanks for all the comments and suggestions.. It seems 4l80e es us the way to go.. I wont say i wont miss the 1 and overdrive of the 4l65e, but being able to actually hammer the car a bit with no remorse will be great. However.. and important point i have not considered was arised...

Car will be mostly cruiser and eventual stoplight to stoplight action. No slicks, no track in the foreseeable future. What about gearing? I have a 8.5" 3.42 posi on it, 265/50/15 tires, will the 80e 1gear be too long? I used hooker/holley swap kit so the crossmember is supposed to work, i...

I just finished swaping an 2005 GTO lS2 4l65e driveline to my monte, and unfortunately the transmission is gone.. it just wont get into 3rd. Now theres the decision, rebuilding the original 65e? or going 80e? What are the pros and cons? To me an 80e will always be stronger, and I believe it fits...

Are OEM yokes is up to the task? I have no experience in this so will I be reusing them on the new shaft? Because my oem is just 2.5" wide.. so I think my front and rear yokes cannot be reused if I go to 3" tube...

Hi there.. I'm in the process of first starting my newly swapped ls2/4l65 monte. After reading terror stories about the 7.5 I pulled the trigger into a GN 8.5, 3.42 posi. Was about to cut the driveshaft when a doubt arise... Will the original 2 1/2" driveshaft, designed for the 100hp engine...

Hey guys it seems this thread went far more technical than what I thought it could go... I have an 81 265cid/th350 monte that was SS cloned.. I'm starting a swap to put a stock ls2/4070e into it, and I was told and 8.5 for the rear was a must so picked up a 3.42 locked one for it. But, I never...

Great idea, keep'em coming!

Might not have being the exact question but that was the same math I was doing... Any dowside of using stock spindle and bearing instead of the newer hub style blazer brake? Wilwood does not offer any kit for the blazer that might have being an option, leaving the vette option as the only...

Hi.. I'm in the process of swaping an ls to my 81 Monte, and yes.. it will be fast but I'm not sure the brakes will be up to the newly acquired speed and power.. Reading here I was about to pull the trigger on a blazer brake swap.. but I think I might be interested in some flashy fancy stuff...

I could use that bucket conversion brackets if your not keeping them. My 81 monte has 40/60 bench and I have a nice pair o' recaros waiting for him!