y2k_ta

iTrader: (80)

I tried to find some information on this before posting a question, but I didn't find what I was looking for. I recently purchased a TH400 trans that was rebuilt, but never installed after the rebuild. For whatever reason the seller didn't mention the stall speed of the torque converter, and I failed to ask. I know it's like asking for the world, but is there a way to determine the stall of the torque converter without putting the trans in the car?

From what I've read, I have to assume it's a lower stall since it's a wider diameter.

I know the name of the shop that rebuilt it. Is it common practice for trans shops to keep good records? I wonder if I called them if they'd have paperwork on the rebuild and know exactly what converter was installed?

performabuilt

iTrader: (25)

Well first I hope your putting that in a BOP car (buick ,olds,pontiac) Since its the wrong bell for a cheverolet engine or and LS1. as for the converter no way to tell but it looks like OEM so I would guess 1200 to 1400 around.

Circle-D

iTrader: (21)

Definitely a stock TH400 converter. It can be a factory high stall, and might go as high as 2000, but like frank said, probably about 1400-1500. If you slide it out and snap another pic of the dimple angles I can tell you more.

Chris

y2k_ta

iTrader: (80)

I figured it was a BOP since all the info I could find online always showed the Chevy bellhousing. Since the trans doesn't mount up using all the bolts when mounting to an LS1, could these adapter plates from Jegs be used (even though it says they won't)? I assume that is says that since it won't be a direct bolt-on.

performabuilt

iTrader: (25)

I cant advise you on that as I have never seen or heard of it being used with and LSX based engine. And I doubt you are gonna find anyone who has done it.

y2k_ta

iTrader: (80)

Thank you for your help. I did find someone who has done this swap, and didn't have any issues.

https://ls1tech.com/forums/showthrea...64#post7991464