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Discussion Starter · #1 · (Edited)
What would I require to complete a 5 or 6 speed manual swap from a TH350?
So far I've only kindof got an idea on how to swap in an NV3500 but I want to make around 500hp out of my 5.3 L33 and I could just push it but I'm wondering what my other options may be? I will be completing this in my 1977 Nova Coupe. Thank in advance!

What transmissions can I use?
What will be required to mount said transmission?
What about the driveshaft length?
What about the driveshaft spline count?
What about the yoke side?
Shifter location?
Bellhousing adaptation?
Will the tunnel need modification?
 

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What would I require to complete a 5 or 6 speed manual swap from a TH350?
So far I've only kindof got an idea on how to swap in an NV3500 but I want to make around 500hp out of my 5.3 L33 and I could just push it but Im wondering what my other options may be? I will be completing this in my 1977 Nova Coupe. Thank in advance!

What transmissions can I use?
What will be required to mount said transmission?
What about the driveshaft length?
What about the driveshaft spline couint?
What about the yoke side?
Shifter location?
Will the tunnel need modification?
First, I would stray from that transmission as it's rated for max torque of 340 (Dodge version only) and standard medium duty is 300... I would suggest a CD0009 last model from a Nissan 370Z or Infinity G35/7 instead as they have been successfully used up to 1,000 repeatedly without issue. A much much stronger transmission, hands down. You just have to make sure it's the last generation of the transmission due to synchros. The earlier models are not nearly as adept and will fail quickly under higher torque values. I have one sitting in my garage now and was going to put it behind my blown 406 SBC but the cost for the conversion and adapter for a SBC vs. the LS platform is higher and the clutch choices are limited to proprietary disks which once gone, gotta buy from one source... No promise they'll be around in 5 years so nope!

I've done hours of research, I suggest you do it yourself too and see about the CD0009 instead if you want a capable easily-obtainable 6-speed transmission. The gearing may be the only letdown... And in the 4th gen, you likely will have to make tunnel mods for the shifter regardless of which transmission you go with (TKX/CD0009 or other...)
 

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Discussion Starter · #3 ·
First, I would stray from that transmission as it's rated for max torque of 340 (Dodge version only) and standard medium duty is 300... I would suggest a CD0009 last model from a Nissan 370Z or Infinity G35/7 instead as they have been successfully used up to 1,000 repeatedly without issue. A much much stronger transmission, hands down. You just have to make sure it's the last generation of the transmission due to synchros. The earlier models are not nearly as adept and will fail quickly under higher torque values. I have one sitting in my garage now and was going to put it behind my blown 406 SBC but the cost for the conversion and adapter for a SBC vs. the LS platform is higher and the clutch choices are limited to proprietary disks which once gone, gotta buy from one source... No promise they'll be around in 5 years so nope!

I've done hours of research, I suggest you do it yourself too and see about the CD0009 instead if you want a capable easily-obtainable 6-speed transmission. The gearing may be the only letdown... And in the 4th gen, you likely will have to make tunnel mods for the shifter regardless of which transmission you go with (TKX/CD0009 or other...)
What transmissions can I use?
What will be required to mount said transmission?
What about the driveshaft length?
What about the driveshaft spline count?
What about the yoke side?
Shifter location?
Bellhousing adaptation?
Will the tunnel need modification?
 

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Discussion Starter · #5 · (Edited)
First, I would stray from that transmission as it's rated for max torque of 340 (Dodge version only) and standard medium duty is 300... I would suggest a CD0009 last model from a Nissan 370Z or Infinity G35/7 instead as they have been successfully used up to 1,000 repeatedly without issue. A much much stronger transmission, hands down. You just have to make sure it's the last generation of the transmission due to synchros. The earlier models are not nearly as adept and will fail quickly under higher torque values. I have one sitting in my garage now and was going to put it behind my blown 406 SBC but the cost for the conversion and adapter for a SBC vs. the LS platform is higher and the clutch choices are limited to proprietary disks which once gone, gotta buy from one source... No promise they'll be around in 5 years so nope!

I've done hours of research, I suggest you do it yourself too and see about the CD0009 instead if you want a capable easily-obtainable 6-speed transmission. The gearing may be the only letdown... And in the 4th gen, you likely will have to make tunnel mods for the shifter regardless of which transmission you go with (TKX/CD0009 or other...)
You want the full list of what you'll need, we need more info. What do you want to do with the car? Budget? Mechanical ability? Been here since 2018 and have 4 posts...
I want to manual swap it for track related purposes and overdrive for cruising at high speeds. My budget is around 3k total for the trans in the car working and driving. I'm mechanicly inclined enough where I've been working on cars my whole life and I'm a full time mechanic.
 

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I want to manual swap it for track related purposes and overdrive for cruising at high speeds. My budget is around 3k total for the trans in the car working and driving. I'm mechanicly inclined enough where I've been working on cars my whole life and I'm a full time mechanic.
Then I would assume you know the trans you propose is not capable of what you're after... Being a full-time mechanic... Plenty of info but if you want a realistic transmission and all that goes along with it, $3k won't come close unless you source all parts used. I mean, a qualityclutch alone capable of what you need it for and last more than a weekend is well over $600- $1k... Then that's not even the hydraulic pedal, slave, throwout, flywheel, bell housing, oh, and transmission.... Not trying to rain on your parade but unrealistic goals are met with stark, cold hard facts. But, we're all here to help if and when we can.
 

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Discussion Starter · #7 ·
Then I would assume you know the trans you propose is not capable of what you're after... Being a full-time mechanic... Plenty of info but if you want a realistic transmission and all that goes along with it, $3k won't come close unless you source all parts used. I mean, a qualityclutch alone capable of what you need it for and last more than a weekend is well over $600- $1k... Then that's not even the hydraulkc pedal, slave, throwout, flywheel, bell housing, oh, and transmission.... Not trying to rain on your parade but unrealistic goals are met with stark, cold hard facts. But, we're all here to help if and when we can.
I defenitly agree with what you're saying I've just heard of lots of people running NV3500s and pushing them, most guys boost here stock truck with them and have no problems without touching the transmission. I dont actually have a budget as I'm not hurting for money, so, back to my original questions.
 

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I would suggest finding a used T56 and from a F-Body just make sure you know the history some have led a hard life or just plan on a rebuild you can run a LS7 clutch setup or aftermarket i do have to say 3k may be a issue due to a clutch that can handle 500HP your right on the edge of a dual disc setup Good Luck you have a large aftermarket for the T56 or magnum :unsure:
 

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I would suggest finding a used T56 and from a F-Body just make sure you know the history some have led a hard life or just plan on a rebuild you can run a LS7 clutch setup or aftermarket i do have to say 3k may be a issue due to a clutch that can handle 500HP your right on the edge of a dual disc setup Good Luck you have a large aftermarket for the T56 or magnum :unsure:
Yep, I wouldn't bother with a single disk setup if you plan on any performance lasting more than a few weeks at best with more than 400 hp. I went with the McLeod RST Street Twin Clutch for my M-22 Muncie Super Build behind my blown 406 and hoping it does the trick. Good to 800 hp, not for racing though, there are other models for strip/course with different compounds if that's your plan. Mine was just shy of 800 clams...
 

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1973 Pontiac Ventura - 489ci BBC swap
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I've done hours of research, I suggest you do it yourself too and see about the CD0009 instead if you want a capable easily-obtainable 6-speed transmission. The gearing may be the only letdown... And in the 4th gen, you likely will have to make tunnel mods for the shifter regardless of which transmission you go with (TKX/CD0009 or other...)
This is the first I've heard of this CD009, and after doing some Googling, I've been intrigued. I can see where people would look at the deep 1st gear, gear spacing and think "ugh..nope!", but I think it would work pretty nicely for those of us with highway gearing like my 2.73. Then I looked at prices of the trans and the swap kits..and I'm not seeing the advantage here compared to a T56. Granted, I didn't dive all that deep in to it, but it looks like someone can drop a grand pretty easy on the swap bits, and that puts you right in line with a T56 cost anyways. Though really, I'm looking a lot harder at just going with something brand new at this point once I started adding up swap parts & rebuild costs (as I'm going to assume that any T56 was likely beat on pretty well)

So sorry for the hijack, but I'm really curious as to what I'm not seeing here.
 

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This is the first I've heard of this CD009, and after doing some Googling, I've been intrigued. I can see where people would look at the deep 1st gear, gear spacing and think "ugh..nope!", but I think it would work pretty nicely for those of us with highway gearing like my 2.73. Then I looked at prices of the trans and the swap kits..and I'm not seeing the advantage here compared to a T56. Granted, I didn't dive all that deep in to it, but it looks like someone can drop a grand pretty easy on the swap bits, and that puts you right in line with a T56 cost anyways. Though really, I'm looking a lot harder at just going with something brand new at this point once I started adding up swap parts & rebuild costs (as I'm going to assume that any T56 was likely beat on pretty well)

So sorry for the hijack, but I'm really curious as to what I'm not seeing here.
T56 cannot handle the same torque or hp as the CD, but... Honestly, the t56 is the cheaper route and if you don't mind rebuilding them every couple years, far cheaper i the long run with wayyyy more aftermarket parts for support, including clutch packages for sure. I was just offering a different approach to the op for an alternate trans from the NV3500 :) there are a lot of CD0009 transmissions out there and you can buy a new one for half the price of a t56, but converting it is expensive and too few clutches to choose from, and most are proprietary disks for the splines. That's why mine is sitting on the bench, going with my M-22 Muncie instead.
 

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1974 Nova SS pro-tour resto-mod.
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A Tremec T56 Magnum or TKX will handle your power goals. A T56 will get you six gears but i think you'd be asking a-lot from it at 500 HP. That and the shifer is a remote type. They can be built-up with components to make them handle the power, essentially making them a magnum I believe. Unfortunately, you will need to increase your budget for the t56 mag. and the TKX, as others have mentioned. The TKX will probably fit in existing tunnel, the magnum will not. The clutch and hydraulic throw out are also higher cost than traditional. Summit racing has an $800ish dual disc clutch with flywheel and its the cheapest I've seen. The throw out components are going to be $800 by the time you are done with it. You will need a new crossmember and driveshaft too. Wish I had a solution that fit your parameters. Richmond makes a 5 speed that is closely rated to your power goal but still, cost is above budget. A $6k budget opens up options.
 

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1973 Pontiac Ventura - 489ci BBC swap
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T56 cannot handle the same torque or hp as the CD, but... Honestly, the t56 is the cheaper route and if you don't mind rebuilding them every couple years, far cheaper i the long run with wayyyy more aftermarket parts for support, including clutch packages for sure. I was just offering a different approach to the op for an alternate trans from the NV3500 :)
Ahhh, I completely misread it, thinking you were offering it up as a cheaper alternative...my bad, and it makes a bunch more sense now 👍
 

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Curiosity got the better of me. I looked it up (CD0009) and found this helpful article:
 
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