Chaharly Posted February 18, 2012 #1 Posted February 18, 2012 My mustang got in a little wreck and I found a 92 trans am for 340 bucks. I bought it before even looking at the odomoter. I got going down the road and i looked down and saw it only had 113xxx miles on it. But anyways back to my question, I want to put a 350 LT1 fuel injected motor into it, can i still run the tranny that's in it now?
muaymendez1 Posted February 18, 2012 #2 Posted February 18, 2012 No the tranny has the wrong locking tourque converter. I had the 5.0 92 Camaro and was thinking t he same thing, Theres so much to change. its easier cheapr and less headaches to find an lt1 3rd gen.
Flyinfool Posted February 18, 2012 #3 Posted February 18, 2012 And if you have the manual trany, it will not handle the torque for long. That is why you could only get the 350 with an automatic. As it was I had issues withe the manual trans in my 91 formula.
ragtop69gs Posted February 20, 2012 #4 Posted February 20, 2012 Swap in a Big Block Buick 455 with a 200R4 trans. The BBB is only about 50# heavier than a SBC . It'll fly and you won't have all the electronics to deal with.
Venturous Randy Posted February 20, 2012 #5 Posted February 20, 2012 What engine and transmission is in the Trans Am now? RandyA
DarkLeftArm Posted February 20, 2012 #6 Posted February 20, 2012 I'd sell the Pontiac & use the profit to fix the Ford. What year Mustang, and how bad is it?
Monty Posted February 20, 2012 #7 Posted February 20, 2012 I'd dump both of them, and get me a 'Cuda....a REAL car!
ragtop69gs Posted February 20, 2012 #8 Posted February 20, 2012 I'd dump both of them, and get me a 'Cuda....a REAL car! You want a Cuda ? I know where there's a '64 convertible that's up for grabs. Last time I asked about it (4 yrs ago) he wanted 11,000 Needs some resto but overall not to bad.
Wolf Posted February 20, 2012 #9 Posted February 20, 2012 The engine in it is either a 305 or 350. The transmission will have the same bell housing. As for the torque converter, the only difference will be the stall. If you have the 305, you will have a medium stall. The 350 will be a low stall converter. So yes, it will work, but if you are going to put a FI motor in it, you may as well put a 4L80E in it which will last you much longer as they are pretty bullet proof. Painless wiring should sell the wiring and computers to make both the engine and trans work.
Wolf Posted February 20, 2012 #10 Posted February 20, 2012 Swap in a Big Block Buick 455 with a 200R4 trans. The BBB is only about 50# heavier than a SBC . It'll fly and you won't have all the electronics to deal with. That 200-4R will not handle a lot of power with out heavy modification. If you want a manual, buy a Tremec.
ragtop69gs Posted February 21, 2012 #11 Posted February 21, 2012 That 200-4R will not handle a lot of power with out heavy modification. If you want a manual, buy a Tremec. Yes, but when they're done right they are nice! I love a stick, but most of our crusin' is in the city and I hate pushing on a clutch all the time. My fused ankle complains alot when I do.
Monty Posted February 21, 2012 #12 Posted February 21, 2012 You want a Cuda ? I know where there's a '64 convertible that's up for grabs. Last time I asked about it (4 yrs ago) he wanted 11,000 Needs some resto but overall not to bad. No, I said a 'Cuda. That's a Barracuda. 70-74 for me. I have had several, but I did have a '70 Barracuda Gran Coupe, which is still an "E" body. Here is a pic... http://i74.photobucket.com/albums/i274/13thAFMonterey/Cars/Cuda.jpg
Sideoftheroad Posted February 21, 2012 #13 Posted February 21, 2012 What do you all think of a TH400 for his application? Works just fine with the 350 small block in my '70 Chevelle.
Keemez Posted February 21, 2012 #14 Posted February 21, 2012 What do you all think of a TH400 for his application? Works just fine with the 350 small block in my '70 Chevelle. TH400 is the non-electronic predecessor of the 4L80E and would be a suitable choice from a strictly "mechanically capable" standpoint.
ragtop69gs Posted February 21, 2012 #15 Posted February 21, 2012 TH400 is the non-electronic predecessor of the 4L80E and would be a suitable choice from a strictly "mechanically capable" standpoint. That's what I'm running in my 462ci powered Buick GS. Bulletproof so far.
Wolf Posted February 21, 2012 #16 Posted February 21, 2012 Yes, the TH400 will stand up better than anything. But, if you are running a 350 motor, A TH700-R4 will take anything you put at it and still keep OD
ragtop69gs Posted February 21, 2012 #17 Posted February 21, 2012 That's why I've been exploring the use of a 200R4. With my 355 rear gear it sings going down the highway.
Wolf Posted February 21, 2012 #18 Posted February 21, 2012 That's why I've been exploring the use of a 200R4. With my 355 rear gear it sings going down the highway. Sorry to correct, but it is a 200-4R. I can't see it holding up to the torque you are putting out. I built one for a Grand National that was putting out 700 HP, and he goes through them about every year and a half. Thats with all the high performance drive train. That 3.8 is not putting out anywhere near the torque you are.
yamtom Posted February 21, 2012 #19 Posted February 21, 2012 In my various readings just in the last week or so, I read that a turbo 350 can be made almost as durable as a th400 by the insertion of a thrust washer . At least thats what I recall, I was quite surprised to read of it. I think I was reading about this on wikipedia, and took off on a link from the gm transmission site on there. Dont be too sure of it, but you could sure ask around for confirmation.
GaryZ Posted February 21, 2012 #20 Posted February 21, 2012 My 2 cents; 700-R4 = TH350 with overdrive 4L60E = 700-R4 with electronic shift 4L80E = TH400 with overdrive and electronic shift There is a lot of power lost through a TH400/4L80E. Most small blocks do not make enough power to need a TH400/4L80E. Your stock transmission is probably a well worn 700-R4. Unless you are drag racing every weekend, a rebuilt 700-R4 will support a more powerful small block engine. I recommend a re-manufactured 700-R4 from someone like Summit Racing. It will have a little extra 'beef'. The 4L60E will require adding a shift computer kit and the cost goes up by $500-$1000.
Wolf Posted February 21, 2012 #21 Posted February 21, 2012 My 2 cents; 700-R4 = TH350 with overdrive 4L60E = 700-R4 with electronic shift 4L80E = TH400 with overdrive and electronic shift There is a lot of power lost through a TH400/4L80E. Most small blocks do not make enough power to need a TH400/4L80E. Your stock transmission is probably a well worn 700-R4. Unless you are drag racing every weekend, a rebuilt 700-R4 will support a more powerful small block engine. I recommend a re-manufactured 700-R4 from someone like Summit Racing. It will have a little extra 'beef'. The 4L60E will require adding a shift computer kit and the cost goes up by $500-$1000. Garyz is pretty much spot on. However, there is a difference in kits for the 700. You will want to go with corvette kit which will give you a stiffer spring and1 extra clutchin each drum. The other clutches will be thinner because of this, but it is the total area of clutch material that matters and not the thickness. There are several shift kits available, the cheap transgo is cheap for a reason, not worth the hassle. I will find the manufacturer of the better one for you tomorrow, but a good kit will defeat the lag you get on the 1-2 shift. Unfortunately, the corvette kit does not solve this. You can have your unit built much cheaper than a Jegs. If you decide to go that route, give me a call and I can point you to a friend in your area.
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