LT1-LT4 Modifications 1993-97 Gen II Small Block V8

possible th350 swap?????

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Old 06-14-2010, 11:27 PM
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Originally Posted by gregrob
No they don't

No they don't what?
Old 06-15-2010, 12:11 AM
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Racecar mike, mike racecar

must be nice lol
Old 06-15-2010, 12:19 AM
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I'd opt TH400 too. Do it right the first time.

A good converter is going to cost you big $$, but well worth it as is a trans brake. I too got tired of breaking parts with the M6, and being horribly inconsistent.

Welcome to being a true player in the bracket race game
Old 06-15-2010, 12:36 AM
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Originally Posted by 1badzee
No they don't what?
Weigh "significantly" more...
Old 06-15-2010, 05:53 AM
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Originally Posted by Wicked94Z
get a madman dipstick, i just got mine in today for my th400, its a nice piece. Don't waste your time with that lokar ****.
Holy **** I wish I would have known, lol. Ever try to add a cup of fluid with a Lokar braided cable? LOL, exercise in patience.

Get the Madman dipstick!
Old 06-15-2010, 06:33 AM
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Originally Posted by joelster
Holy **** I wish I would have known, lol. Ever try to add a cup of fluid with a Lokar braided cable? LOL, exercise in patience.

Get the Madman dipstick!
yeah i heard it was a pita lol
Old 06-15-2010, 07:11 AM
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Originally Posted by gregrob
Weigh "significantly" more...
Sure, I guess 10lb's isn't anything to account for. Most of it being rotating mass.
Old 06-15-2010, 10:37 AM
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350 is lighter and faster and a properly built one will handle plenty of HP and last a long time.

Weight-
4l80e- wet 255
4l60e- wet 175
TH400- wet 140
TH350- wet 130
Powerglide- wet 110


The Trans I posted has a 9" tail section. I got in contact with the original owner and was rebuilt 2 yrs ago, but only has 12 passes on it. Never gave the original owner any probs

So what size is the med tail shaft I need??
Old 06-15-2010, 10:58 AM
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Originally Posted by robsquikz28
Racecar mike, mike racecar

must be nice lol
Ha.. KOTS has me thinking bad thoughts
Old 06-15-2010, 11:56 AM
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Originally Posted by AChotrod
350 is lighter and faster and a properly built one will handle plenty of HP and last a long time.

Weight-
4l80e- wet 255
4l60e- wet 175
TH400- wet 140
TH350- wet 130
Powerglide- wet 110


The Trans I posted has a 9" tail section. I got in contact with the original owner and was rebuilt 2 yrs ago, but only has 12 passes on it. Never gave the original owner any probs

So what size is the med tail shaft I need??
3", 6" and 9"

I have a 3" (tailshaft that is).
Old 06-15-2010, 12:00 PM
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So Are you guys sure the 6" is the correct length to keep the stock DS. I had always heard the long one is correct and now Im not sure.
Old 06-15-2010, 02:46 PM
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an old school th350/th400 will bolt up and work with an lt1 if you wanted right? like if i bought an old one and rebuild it how i wanted thatd work correct?
Old 06-15-2010, 02:52 PM
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yup^^^^ Wont work with a LS1 but will bolt right up to a LT1. Thinking about a swap now?? lol
Old 06-15-2010, 03:50 PM
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Anyone know how easy it is to swap out the tail and output shaft on a TH350??
Old 06-15-2010, 04:23 PM
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ac you got me thinking about doing this swap now. i t woudl help me out cause i constantly smoke and tear the hell out of clutches


all i need really is a full list of evdrythign that i need.

if i go with a non lockup th 350 do i even need m6 harness. couldn't i just tape that away and not worry about any lights or codes coming on?
this woudl make it way easier for my but wouldnt i have to buy a different crossmember and torque arm mount braquet or qould i be able to use my stock trans member and just bolt the turbo 350 to it.

have you figured our with tail piece is the right length so you can use the stock drive shaft

i have a th350 that i am rebuildign myself right now. not as bad as i thought it woudl be rebuildign a old school trans

Last edited by Big bird55; 06-15-2010 at 04:34 PM.
Old 06-15-2010, 04:25 PM
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also anyoen her edone this yet mayeb they coudl chime in and tell us what they all used.
Old 06-15-2010, 04:25 PM
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10 lbs is nothing. And if you actually talk to people who race instead of internet experts, they will tell you that a 400 is NOT any slower...

I've seen it back to back on a deadly consistent bracket car and it didn't slow down ANY
Old 06-15-2010, 04:36 PM
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Originally Posted by gregrob
10 lbs is nothing. And if you actually talk to people who race instead of internet experts, they will tell you that a 400 is NOT any slower...

I've seen it back to back on a deadly consistent bracket car and it didn't slow down ANY
I dunno tell that to a SS or SE racer like Gizmo. Its not just the 10lbs but the total combo that Im worried about. Fact is 10lbs is 10lbs and a properly built 350 will last me quite some time with the amount of driving/racing I have time for.
TH400 is def stronger, and heavier. When Im making 1000hp id consider it more. These trans are pretty cheap and everything can bolt right over if I decided to swap.
Old 06-15-2010, 04:37 PM
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Originally Posted by Big bird55
ac you got me thinking about doing this swap now. i t woudl help me out cause i constantly smoke and tear the hell out of clutches


all i need really is a full list of evdrythign that i need.

if i go with a non lockup th 350 do i even need m6 harness. couldn't i just tape that away and not worry about any lights or codes coming on?
this woudl make it way easier for my but wouldnt i have to buy a different crossmember and torque arm mount braquet or qould i be able to use my stock trans member and just bolt the turbo 350 to it.

have you figured our with tail piece is the right length so you can use the stock drive shaft

i have a th350 that i am rebuildign myself right now. not as bad as i thought it woudl be rebuildign a old school trans
IS your car a auto now??
Old 06-15-2010, 05:11 PM
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Those guys also run their diffs low on oil. Little bit different ball game.

I don't have to ask them, I've seen it. For 95% of the race cars out there it will never make a difference and the 400 will hold up better.


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