I have a couple questions about TH350 torque converters. Other than the th350 and th350c is there any fitment issues as far as spine count? My car has a .40 over 350 mild worked heads and a xe262 cam. The converter in the car now is about 3000, which is to big. When driving it feels like I am in second gear for maybe 3-400 rpm unless I manually shift. On the highway at 65 I am around 4200rpm. I don't have big or small tires. I forget the tire size, but normal for a car on 15s. I have a one wheel wonder 10 bolt so I doubt I have really tall rear gears. I am yet to pull the rear cover and count. Would switching to a stock converter change my rpm on the highway? My car is a 48 Ford tudor. Thanks in advance for any help.
Your talking about flash a big stall converter acts loose (will rev about 2-400 rpm with no real change in speed. change it to stock or 2000rpm you will be happier.
Well what converter is in there now? Does it couple up when you get on it or always feel like its slipping? Providing you actually don't have a very numerically high axle ratio- and that your tach is correct : 4200 rpm at 65 is a lot of slippage and the slippage = heat and heat it the downfall of any automatic.
Its not a locking converter. It has an 11" tci converter that is supposedly a 3000 stall Posted using the Full Custom H.A.M.B. App!
I had the same issue.... There is a company in Walton Hills Ohio called "Perfect Converter co" They are on Hannah Pkwy... Give them a call, Its a small company that is into performance.... He will take your converter, split it open, and change the stator ect.... When you talk to him have your cam card, engine specs, tires size, ******, and rear ratio... tell him where you wanna be. He will set it up right..... He did mine and a bunch a buddies and all the ****** shops around here If you still have the stock converter, send him that, cruise your car till you get it back, the swap-um
Thanks for the infop about the torque converter shop sounds like a good place. I unfortunately do not have a stock converter. Id like to get a stock converter. I am not sure what converter's I can use. Can I use any non locking converter for a th350?
Yea, any th350 converter ( also fits th400 same same) What I was getting at before ... Even with a 3000 rpm converter 4200rpm at 65 sound very excessive and that there may be other problems.
Ok. Ill try out a stock converter and if rhat doesn't do it ill put a new trans in. Thanks for the replies Posted using the Full Custom H.A.M.B. App!
***uming, the ****** is slipping, ( a nother problem ) the fluid would be burned, NO? Regarding the first statement... 350 same as 400, I have a reverse question. I have a Newer low mileage T400 converter. I was told it was the same as 350. (exact opposite as you stated) ***uming 350 will fit in a 400, then a 400 should fit in a 350... right? that's what I thought, but was told not so.... 400 converters are fatter and may rub the bell housing... I still have this new/lowmailage converter.. Vicky with a hemi.... can you confirm either application? Thanks... if its the same, Get in touch punisher, I hate to leave it sit.... Also, Perfect converter split my TCI Super Street Fighter cuz it was flashing at 3500, I needed 5200 rpms.... But when I would warm my car before a race... Usually behind the pits, it slipped a little, but by 2500 she was pretty solid....I ran a 15 to 1 compression Windsor based small block... I set my 2 step at between 48 and 5000 rpms depending on conditions....
Don't take my word for it, look up the part numbers. The turbo 400 and 350 take the same converter part numbers "most of the time." Im running a p9 ( vega converter) in a turbo 400 but that converters part # won't show as applicable to the 400 by GM, but it fits. So yes a 400 fits a 350 and 350 fits 400 ( barring the 350 lockup and switch pitch 400s) the Chevy or BOP also take the same converters. Look up an application for a converter from summit, it will show 350 equipped vehicles and 400 equipped vehicles.
Thanks, Its what I saw also, but another person caused a doubt on this, and figured I would wait till I have a 350 and a 350 out, then try this converter... As apposed to doing mine in the car for no other reason then to find out.
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