I'm getting my TH400 rebuilt soon with a shift kit and I want a new converter. I have a '70 455 engine mildly above stock and want a converter that will be the best for weekend drives and the occasional track 1/4 mile runs. I was told that 10" with 2,800 stall is best for me. I was told it could also be too tight and I may want it looser. Who went through this and knows the best one and size?o No:
Check out Transmission Specialties in Exton Pa. Not far from you or me. I bought my 2400-2800 9" there. Great guys people, great customer service and they make a few specific for out type build and cars. I LOVE the one I have in my car which went in this time last year when I dropped in the motor thats in may car now matted to my rebuilt TH400. Don't even know its there till your on it, then you know:3gears: . Prices are very good too. Give them a call or stop buy there shop. I have a good friend that races and builds radical 13:1 Chevy motors and uses there converters all the time and loves them. Where in NE Philly are you? thats where I gew up. Mike http://www.transmission-specialties.com/index.html
There are so many things that affect what a converter will stall in your combination that it is impossible to say what will work in your car. There is no one size fits all. What works in one guys car may not be what you need. Generally, you match a converter to your cam. Mildly above stock? Then stay with a stock converter. I can tell you this, if you put a converter that is too loose, you will not be a happy camper. If it is mildly above stock, I wouldn't go above 2000 RPM stall. With converters, you get what you pay for. If you want another converter, call a converter company and give them all the specifics of your build and car. Then be honest about how you are going to use the car. They will build you a converter that accomplishes what you want.
I don't know anyone with a 9", I'm from N.E. airport area. I recently PMed you about Buick parts after you replied about a 10 bolt rear from Thrillbilly. ~~~~~~~Bob
I don't have a cam card but I was told it's a a little above stock cam for a '70 455 stage 1. The rear will be 3.73's, the engine has rollers, B4B alum intake, headers, and soon to have a Q-jet 830 or 850. My local tranny guy stated that I should put in a 10" 2,300 from either Pat's converters out of West Chester, Pa. or another guy from Strausburg, Pa. [forgot his name] which he said are both equally good to use. I figured if someone has a stock 455 and tried different combos over the years they would know what's best for daily driving and the occasional foot stomping.:3gears:
2300 might be more appropriate, but still seems a little high...you first mentioned 2800 which would be too much for a torque monster. I recommend speaking with a few different converter experts (such as Coan) to get the strightest answer. They're really going to want those cam card numbers, though. Devon
