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Old 05-20-2007, 02:23 PM   #1
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t-5 ls1 bellhousing

who makes a ls1 to t-5 bellhousing. I can find them for just about every trans but the t-5
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Old 05-21-2007, 07:05 AM   #2
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Re: t-5 ls1 bellhousing

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who makes a ls1 to t-5 bellhousing. I can find them for just about every trans but the t-5
Who would? The t5 sucks *** and a stock LS1 will break a t5 with ease. By the time you try ( note I said try you wont make it great no matter how much coin you throw at it ) to build a t5 to handle big power it will cost more than a t56 to begin with
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Old 05-21-2007, 11:07 AM   #3
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Re: t-5 ls1 bellhousing

Yea, you're better off installing the T56 with it.
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Old 05-21-2007, 10:03 PM   #4
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Re: t-5 ls1 bellhousing

thanks guys but #1 the t56 blows rotten ***** (had the better 97 one in my old 88) the t5 held up behind my Real 450+ hp eng. and a few guys I know on a personal level with vortech superchargers and one a 175 of nitrous

countless mustangs running very high hp and low times with the t5 (11's and lower)

an ls1/t5 really is not that bad. the ls1 does not have near the torque a lt1 or l98 makes and produces what 315 hp? a t5 will last just fine. I don't make my cars fast through shifting like a tool they are fast because they make real HP numbers out the crank. the ls1 is more of a drivability setup I am going for. if I could find a t56 cheap I would put up with it however I was thinking the t5 for now and then a tko swap

you guys act like I just started with the thirdgens. all I want is a bellhousing for the ls1 t-5 so please keep it at that. thanks

Last edited by 88 350 tpi formula; 05-21-2007 at 10:13 PM.
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Old 05-21-2007, 10:19 PM   #5
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Re: t-5 ls1 bellhousing

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Originally Posted by 88 350 tpi formula View Post
thanks guys but #1 the t56 blows rotten ***** (had the better 97 one in my old 88) the t5 held up behind my Real 450+ hp eng. and a few guys I know on a personal level with vortech superchargers and one a 175 of nitrous

countless mustangs running very high hp and low times with the t5 (11's and lower)

an ls1/t5 really is not that bad. the ls1 does not have near the torque a lt1 or l98 makes and produces what 315 hp? a t5 will last just fine. I don't make my cars fast through shifting like a tool they are fast because they make real HP numbers out the crank. the ls1 is more of a drivability setup I am going for. if I could find a t56 cheap I would put up with it however I was thinking the t5 for now and then a tko swap

you guys act like I just started with the thirdgens. all I want is a bellhousing for the ls1 t-5 so please keep it at that. thanks
Try summit or mcleod .. And BTW some stock ls1's make more tq and hp than a l98 or lt1. Most were rated around 320 and yet managed to put 305ish to the wheels...hhhmm.. 5% drivetrain loss, not a chance.They were very underated. Im not saying you dont know your 3rd gen stuff, but think about what your doing.. putting a 305 tranny behind a ls1.

vette ls1's put out.

Displacement 350ci
Horsepower 345 @ 5600 rpm
Torque 350 @ 4400 rpm

You will destroy a t5 with it bar none.

Last edited by 92rs85berlintta; 05-21-2007 at 10:42 PM.
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Old 05-21-2007, 10:33 PM   #6
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Re: t-5 ls1 bellhousing

I had a buddy who had a T5 behind an LT1 and blew it all to pieces twice, the T56 is beefier than alot of people think, several people here where I live doing 5k dumps, 6k dumps and holding together with no problems.
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Old 05-21-2007, 10:57 PM   #7
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Re: t-5 ls1 bellhousing

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I had a buddy who had a T5 behind an LT1 and blew it all to pieces twice, the T56 is beefier than alot of people think, several people here where I live doing 5k dumps, 6k dumps and holding together with no problems.

that's my point though a t-5 is not made for dumps. a ls1 does not make near the torque at low rpms.. which is what kills the t-5
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Old 05-21-2007, 11:18 PM   #8
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Re: t-5 ls1 bellhousing

The T5's aren't made for anything at all that is modded really heavy, hell they break T5's with stock 5.0s in the Mustangs. Now if you start talking about the 3550's or the TKO's, then you're getting into better transmissions. I just looked at D&D performace (probably the best authority on T5 and T56 transmissions) and see what they have and if a place that is a Tremec dealer doesn't have any type of bellhousing to put a T5 behind an LS1, then it probably doesn't exist. But you could call them and ask.
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Old 05-22-2007, 12:50 PM   #9
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Re: t-5 ls1 bellhousing

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who makes a ls1 to t-5 bellhousing. I can find them for just about every trans but the t-5
As I understand it the standard T-5 bellhousing will bolt to a LS1, there is just one bolt that the block isn't taped for. LS2 blocks are tapped for all of the bolts.
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Old 05-22-2007, 08:06 PM   #10
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Re: t-5 ls1 bellhousing

LS1 is 346 not 350 CI. And the only difference between the Vette and F-body LS1s were the exhaust and air intake set-up.
I don't think that a T5 would bolt up without changing the input shaft as well, even if they made a bell housing.
And you are kidding yourself if you think a LS1 won't kill a T5. A friend of mine killed two T5 with his stock L03.
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Old 05-22-2007, 09:06 PM   #11
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Re: t-5 ls1 bellhousing

Not everyone wants to drag race their car. The T5 will handle reasonable use just fine and is much lighter than a t56. If you are not dumping the clutch with R comp tires it will be fine. Not to mention the options available for stronger gears to beef up the t5. Hmmm I guess I just mentioned it. I want to do exactly this so please post if you are succesful. I wish to do this for an autocross car.

Last edited by Souseless; 05-22-2007 at 09:10 PM.
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Old 05-22-2007, 09:11 PM   #12
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Re: t-5 ls1 bellhousing

That is true, but if you can break a transmission with a stock L03 (170/255) then I don't see even nice driving one behind a LS1 (305-325/345) lasting very long. I guess if you never get it over 2500 RPM, you'd be ok. You start winding on it, things aren't going to go well. That's the way I see it at least.
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Old 05-22-2007, 10:10 PM   #13
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Re: t-5 ls1 bellhousing

Nobody has done it, because the T5's are junk, stronger gear sets for the T5 are still weaker than the gears in the T56 with the strongest gearset in the 3550 or TKO. If you are going to autocross the car, get the T56, it's close ratio which works very well for that type of setup. My friend who destroyed two T5's behind the LT1 hadn't even taken it to the track when they went up.

Tremec even shows on their website that the T5 is only good for a max of 300lb of torque, where the TKO is good for 600lb and the T56 is 475.

It's not that we're bashing for wanting to do this, but why throw money away with the T5.

Last edited by Klortho; 05-28-2007 at 08:22 AM.
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Old 05-22-2007, 11:37 PM   #14
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Re: t-5 ls1 bellhousing

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Not everyone wants to drag race their car. The T5 will handle reasonable use just fine and is much lighter than a t56. If you are not dumping the clutch with R comp tires it will be fine. Not to mention the options available for stronger gears to beef up the t5. Hmmm I guess I just mentioned it. I want to do exactly this so please post if you are succesful. I wish to do this for an autocross car.

finnally someone who knows what I am saying, as I stated befor the plan is the tko which is fine. a ls1 is not some super dooper monster if it was then why would my easy driving on the t5 smoke the **** out of ls1 cars I raced? and still hold up? I have broken t5's befor but they where really taking alot of hp and hard shifting. I will only drive the ls1 for a daily driver which is why I just parted my other higher hp eng. which was turning this t-5

I really hate the t56 (heavy notchy junk)but I would have installed one if every person with a ls1 didn't seem to think they had to have a t56 and use them all up (I was going to go auto however my wiring is from and for a stick car, I have everything for the t56 just need the trans which is still a step back from the tko, an auto I would need the flexplate, shift cable, wiring plugins, dipstick and so on)


for the few who tried to help THANK YOU!!!!! I will look into this further

if the bell and input shaft will end up working I will run that until I can get my hands on a tko
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Old 05-24-2007, 06:34 PM   #15
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Re: t-5 ls1 bellhousing

Even if you were to use a TKO it has the same bolt pattern as a T5 so it would be the same bellhousing.
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Old 05-25-2007, 10:14 PM   #16
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Re: t-5 ls1 bellhousing

so a tko/ls1 bell should be what I need and will be worth while since I plan to run a tko
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Old 05-27-2007, 09:43 PM   #17
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Re: t-5 ls1 bellhousing

I broke down and picked up a ls1 t56 with a hurst shifter and mounts slave just about everything. uh well atleast I can just forget about the dang bellhousing maybe I can find a good deal on a tko and bell someday and sell the t56.
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Old 05-27-2007, 10:34 PM   #18
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Re: t-5 ls1 bellhousing

I was hoping something would come from this thread! Was hoping there was a chance I could use my TKO600 behind a LS2.

And to the guy that says the T56 is stronger than the TKO500/600...

for the
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Old 05-28-2007, 04:02 PM   #19
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Re: t-5 ls1 bellhousing

A T56 built right can handle alot of power. Granted, the 2-3 shift fork really sucks, but D&D has a cast iron fork that eliminates the bending of the aluminum fork. I'm getting ready to have mine rebuilt since the fork is bent (the tranny came out of a theft recovery and was banged through the gears hard) and all carbon fiber synchros installed. Unfortunatly I did a search on LS1tech and found nothing about a bellhousing that will fit a T5 to mate to an LS1.
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Old 05-28-2007, 04:27 PM   #20
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Re: t-5 ls1 bellhousing

From my research to bolt a gen1 small block to a ls T-56 I found the information that you need to bolt a LS1 to a gen1 tranny. Basically the LS1 bell housing bolt pattern is identical to the gen1 small block except for 1 bolt. The only other differences is that the Crank mounting flange is 3/8's of an inch further away from the tranny and the flywheels have different bolt patterns so you have to use a LS flywheel/clutch with the LS motor. To use a Gen1 trans with a LS you need to space out a stock LS1 flywheel 3/8" and use an LS1 clutch. You then need an extended pilot bearing, The LS clutch uses the same spline count as a gen1 tranny with 26 splines.

It would still be a complete waste of time to put a t-5 behind a LS, I'm not sure what kind of wacky weed you've been smoking to think that it would hold up. The mustang T-5's are completely different than the camaro t-5's, also the mustang was also much lighter than the 3rd gen which is why they held up a bit better. A t-5 behind power is still only going to last a short time. A TKO is NOT a T-5, so don't even compare them.

I've looked into bolting a race bred 4 speed behind an LS for road racing and auto-x. If you are serious about racing than the OD is useless and a built 4-speed is very comparable price wise to a stock t-56 and weighs a good 100 lb's less.
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Old 05-28-2007, 05:25 PM   #21
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Re: t-5 ls1 bellhousing

I'm putting this one to bed. As an aside to the original poster, free advice is worth every penny, so make the most of it.
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