350 swap and stock tranny

skylarkmk · 10-12-2009, 09:03 PM

Hi,
I have a 350 tbi in my 92 s10 pickup, for now i'm reusing the stock 700r4. Has anyone else done this? How are your stock transmissions holding up?

Revolt · 10-12-2009, 09:37 PM

It should up fairly well if the 700r4 was in good shape. Depends on alot of variables though.

With that said, I assume you're reusing a 700r4 that was behind a 4.3 ?

skylarkmk · 10-12-2009, 10:35 PM

ya, it was originally behind 4.3 tbi

mr. steve · 10-13-2009, 09:37 PM

yea, id love to know too
if i could use mine that would be awsome

sewerrat · 10-14-2009, 03:23 AM

I'm using a 700r4 from an 89 4.3 behind my stock rebuilt 350. It's been 10 months now as a daily driver and so far no issues. The 4.3 trans was in good working order at the time of my swap. All I did was install a H/d shift kit from Dana (probuilt trans). I'll do a complete rebuild with the recommended parts when the time comes.

srv748 · 10-14-2009, 06:39 PM

From what I heard, its should be fine as long as your not going crazy with the horse power. If your gonna go with a lot of HP, you might want to go with a 350T or 400T.

FKNBMPN · 10-14-2009, 11:13 PM

700R4's came behind V8's in other vehicles, so ther shouldnt be any reason it wouldnt work in yours.

sewerrat · 10-15-2009, 03:34 AM

Quote: Originally Posted by FKNBMPN

700R4's came behind V8's in other vehicles, so ther shouldnt be any reason it wouldnt work in yours.

The earlier 4.3 700r4 lacked a few up grades as compared to the newer ones and the V8s. I believe this discussion has been mentioned in our trans/axle forum. The V8s front pump contains more vanes and a bit more clutches in one or more of the clutch packs. It might even have a better servo. As stated above, as long as you don't get to crazy you should be fine.

10-12-2009, 09:03 PM	#1
skylarkmk Registered User Age: 25 Join Date: Mar 2008 Posts: 118 Location: User is: OffLine	350 swap and stock tranny Hi, I have a 350 tbi in my 92 s10 pickup, for now i'm reusing the stock 700r4. Has anyone else done this? How are your stock transmissions holding up?
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10-12-2009, 09:37 PM	#2
Revolt Registered User Join Date: Oct 2009 Posts: 24 Location: User is: OffLine	Re: 350 swap and stock tranny It should up fairly well if the 700r4 was in good shape. Depends on alot of variables though. With that said, I assume you're reusing a 700r4 that was behind a 4.3 ?
	[Reply w/Quote]

10-12-2009, 10:35 PM	#3
skylarkmk Registered User Age: 25 Join Date: Mar 2008 Posts: 118 Location: User is: OffLine	Re: 350 swap and stock tranny ya, it was originally behind 4.3 tbi
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10-13-2009, 09:37 PM	#4
mr. steve Registered User Age: 25 Join Date: Mar 2008 Posts: 429 Location: User is: OffLine	Re: 350 swap and stock tranny yea, id love to know too if i could use mine that would be awsome
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10-14-2009, 03:23 AM	#5
sewerrat Registered User Join Date: Dec 2007 Posts: 278 Location: Maui User is: OffLine	Re: 350 swap and stock tranny I'm using a 700r4 from an 89 4.3 behind my stock rebuilt 350. It's been 10 months now as a daily driver and so far no issues. The 4.3 trans was in good working order at the time of my swap. All I did was install a H/d shift kit from Dana (probuilt trans). I'll do a complete rebuild with the recommended parts when the time comes.
	[Reply w/Quote]

10-14-2009, 06:39 PM	#6
srv748 Sox Nation Age: 30 Join Date: Aug 2007 Posts: 36 Location: Tucson AZ User is: OffLine	Re: 350 swap and stock tranny From what I heard, its should be fine as long as your not going crazy with the horse power. If your gonna go with a lot of HP, you might want to go with a 350T or 400T.
	[Reply w/Quote]

10-14-2009, 11:13 PM	#7
FKNBMPN Registered User Age: 21 Join Date: Jun 2007 Posts: 47 Location: User is: OffLine	Re: 350 swap and stock tranny 700R4's came behind V8's in other vehicles, so ther shouldnt be any reason it wouldnt work in yours.
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10-15-2009, 03:34 AM	#8
sewerrat Registered User Join Date: Dec 2007 Posts: 278 Location: Maui User is: OffLine	Re: 350 swap and stock tranny Quote: Originally Posted by FKNBMPN 700R4's came behind V8's in other vehicles, so ther shouldnt be any reason it wouldnt work in yours. The earlier 4.3 700r4 lacked a few up grades as compared to the newer ones and the V8s. I believe this discussion has been mentioned in our trans/axle forum. The V8s front pump contains more vanes and a bit more clutches in one or more of the clutch packs. It might even have a better servo. As stated above, as long as you don't get to crazy you should be fine. Last edited by sewerrat : 10-15-2009 at 03:38 AM.
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