View Full Version : Best Automatic Tranny Choice?
edhjohnb Aug 11th, 06, 08:47 PM I have a 67 RS project without a tranny (among other things!) I want this to end up being a high performance daily driver, and was wondering if there was a consensus on what type of tranny I should get (best value for my dollar):
1) TH350
2) TH400
3) Powerglide
4) ???
Thanks for your help!
tmannet Aug 11th, 06, 08:51 PM I'm certainly not an expert, but I've owned a TH350, powerglide (in addition to several 3 and 4 speed manual transmissions), and now I have a 700r4, which so far has been a great tranmission with a 4th gear (overdrive), really helps with the gas mileage at highway speeds...with the old TH350 I'd be at almost 3000 rpms at 65mph, now it's more like 2000.
I'm not sure if value per dollar is much different for these transmissions; rather, they all have strengths and weaknesses. You mentioned 'high performance' daily driver, if you want original maybe a TH400 would be best. If you want all out performance and don't care so much about originality, think about a 200r4 or 700r4. By the way welcome to the site! Terry M.
PS one more consideration is matching the trans with the engine you decide to go with. Matching engine, heads, intake, carb, trans, rear gears, and tires is what distinguishes a true performance car from a hack-job (among other things!)
Oldani Motorsports Aug 11th, 06, 09:15 PM There are too many variables to the equation to have a blanket statement to say "x" is better than "y" or "z". You need to look at intended goals, along with having your engine combination and chassis selections made first before moving to the right trans, and often more importantly the right converter choice. It's all too often I get calls from not just racers but street and street/strip guys who've been led down the wrong path. I'm always happy to discuss a person's combination with them to hopefully provide some insight into them making an informed and intelligent decision.
HarleyD67 Aug 11th, 06, 09:17 PM 200-4R better gearing than the 700, and an easier swap into a first gen. There are shops that will build them to hold up to 700hp.
Jack Eggers Aug 11th, 06, 11:53 PM My 67 plain jane is still in paint jail and I haven't put in the drivetrain yet. I will be using a B&M 4L60E to replace the PG. It's supposed to be a bolt in for an early small block. Mine will be a daily driver so the overdrive is a must have. I haven't made an engine choice and based my 4L60E decision on a 400-450 hp target. I'll match the cam to the converter when I quit procrastinating on the engine choice (327 or 383). I really like the idea of making shift adjustments with the controller rather than on my back under the car for the occasional trip to the strip. The B&M kit looks pretty complete with converter, Compushift controller, throttle position sensor, trans cooler and reasonable instructions. I also have the Shiftworks conversion so I can keep the PG console shifter. The trans crossmember from Bowtie Overdrives should be here next week and I'll order the new trans lines this weekend. I don't want to use a speedometer box or change the tailhousing to a gear drive, so I talked myself into putting in a Dakota Digital dash. This should be a direct hookup with the digital speedometer. This is my first time with an automatic and I'll start putting it together in a few weeks. I'm sure there will be some surprises. Good luck with your choice.
67 Plum Aug 12th, 06, 08:49 AM A TH350 if you dont plan any long trips.A TH200r4 if you will be taking trips or alot of highway driving.JMO
BPOS Aug 13th, 06, 09:25 PM I think it depends on how much you have to spend. "Bang for the buck"-wise it's awfully hard to beat a T350. Tried and true and can hold up behind some surprisingly stout engines when done correctly. . The OD's, while nice, will cost about double - maybe more, what a T350 costs. The T400 is extremely durable and also relatively inexpensive, but usually more money than a T350.
camaroman7d Aug 13th, 06, 09:49 PM Steve hit the nail on the head. There is not even close to enough info to give a recommendation. We don't know if it's a big block, small block?, what rear gears?, what the car will be used for? If he is running 3.08's or 2.73's in the rear then running an OD tranny is not really a great choice. I will go as far to say that a glide would not be my choice for a street driven car. How much are you looking to spend? What are your future goals?
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