Whos happy with their 700R4?
#1
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Whos happy with their 700R4?
Most guys opt for a 4l60E or 80.... maybe even 6 speed or TKO but considering I am staying TPI, I am really interested in having a nice 700 put back in it. Anybody else running an aftermarket built 700 youve had good luck with?
#2
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Re: Whos happy with their 700R4?
I'm happy with mine. It's behind a built 427. I ordered a rebuilt kit from Dana at https://probuiltautomatics.com/ Still working fine after 10 years. Nice smooth shifts when driving normal. And nice hard snappy shifts when getting heavy on the throttle. If you went this route. I'd call him and tell him your setup and he'll give you what you need.
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#3
Re: Whos happy with their 700R4?
I've had mine in my 2nd gen since 1993 (it's been rebuilt since then), but yeah I love it.... even more so now with the Gear Vendors OD unit behind it. 8 speeds now... it's a hoot going through them all from a stand still...
![driving](https://www.thirdgen.org/forums/images/smilies/driving.gif)
A good torque converter will also wake it up.... I have a Hughes 2500 rpm converter in it.
![driving](https://www.thirdgen.org/forums/images/smilies/driving.gif)
A good torque converter will also wake it up.... I have a Hughes 2500 rpm converter in it.
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Re: Whos happy with their 700R4?
I've got a TCI street fighter, 800 miles in and it hasn't blown up. The governor is totally wrong, like it's for an LG4 with 2.73 final so it shifts way too soon for me but it's reasonably easy to fix just haven't had the time. Manual shift though... It'll bark the tires on a 1-2 upshift at 5% throttle, over 50% I can feel the rear kick out. Looking to eventually go 4L60E with the 2.84 first mainly for the ability to map shifts rather than trial and error the governor.
#5
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Re: Whos happy with their 700R4?
I've got a TCI street fighter, 800 miles in and it hasn't blown up. The governor is totally wrong, like it's for an LG4 with 2.73 final so it shifts way too soon for me but it's reasonably easy to fix just haven't had the time. Manual shift though... It'll bark the tires on a 1-2 upshift at 5% throttle, over 50% I can feel the rear kick out. Looking to eventually go 4L60E with the 2.84 first mainly for the ability to map shifts rather than trial and error the governor.
Im looking at Gearstar, Performabuilt, Monster and Art Carr but im open to suggestion.
#6
Re: Whos happy with their 700R4?
Have had 3 built ones behind a healthy 383 with no issues. First one was a built one from monster that I had rebuilt into reverse manual, held up fine with both configurations. Recently got tired of driving a reverse manual trans around town so I swapped in a 700r4 from someone on here with a mystery kit in it and so far its holding up fine. Feel like they unfairly get a bad reputation
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Car: 1987 IROC-Z
Engine: 406 on N20 w/ EFI
Transmission: P.B. 700R4
Axle/Gears: 12 bolt w/ 3.91
Re: Whos happy with their 700R4?
My 700R4 is a ProBuilt Automatics build and it has withstood over 140 dragstrip passes in the 10 and 11 second zone, same amount of dragstrip burnouts, dozens more street burnouts, lots and lots of nitrous launches and wide open nitrous shifts, and about 60 laps on autocross courses. Also, the car is only street driven, no trailers, so I kept converter lockup feature for on the highways.
Last edited by IROCZman15; 07-26-2024 at 07:39 PM.
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IROCThe5.7L (07-27-2024), MrIROBZ (07-26-2024)
#9
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Re: Whos happy with their 700R4?
I'm happy with mine. It's behind a built 406. I ordered a rebuilt kit from Dana at https://probuiltautomatics.com/ Still working fine after 3000 miles. Nice smooth shifts when driving normal. And nice hard snappy shifts when getting heavy on the throttle.
#10
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Re: Whos happy with their 700R4?
Whats the set up in front of the trans? IROCZman
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Re: Whos happy with their 700R4?
I bring that up as there's a member there named Franks Custom Trans and he contributed to my 4L60 build thread. If he was local to me I'd have gone there.
https://ls1tech.com/forums/automatic...-thoughts.html
I've checked out some of your recommendations most notably GearStar and spoke with their rep. Of all of the above I'd probably go that route but the USD/CDN dollar exchange not to mention shipping make it cost prohibitive.
I went for a local rebuilder with my old transmission full of Sonnax and new GM parts (which was built by another guy but failed due to an assembly error) and had a fresh core combined with my hardly used parts for the current unit . Still untested in anger though.
Last edited by skinny z; 07-26-2024 at 04:55 PM.
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Car: '83 Firebird (T/A Clone)
Engine: 350 carbed with L-69 components
Transmission: 700R-4 w/2000 RPM stall converter
Axle/Gears: 10-bolt/3.73 ..
Re: Whos happy with their 700R4?
I assume we're talking about post-'87 transmissions...
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Re: Whos happy with their 700R4?
Good point. I certainly am. And the later on in the production cycle before they went to the "E" version, the better.
ATSG has a 700R4 update manual that I found very useful when speccing my last couple of transmissions.
https://atsgbookstore.com/700-r4-update-handbook_dl/
ATSG has a 700R4 update manual that I found very useful when speccing my last couple of transmissions.
https://atsgbookstore.com/700-r4-update-handbook_dl/
#14
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Re: Whos happy with their 700R4?
Mine unfortunately is a 87 700R4 but I will have to upgrade. Im not too worried. I think the later cases are better but I really need to refresh my knowledge... I certainly have forgotten a lot of info over the years to make way for more knowledge.
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Car: '83 Firebird (T/A Clone)
Engine: 350 carbed with L-69 components
Transmission: 700R-4 w/2000 RPM stall converter
Axle/Gears: 10-bolt/3.73 ..
Re: Whos happy with their 700R4?
Well I'd rather have your '87 than my '84...
#16
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Re: Whos happy with their 700R4?
Ill sell it to you, for the core charge. Only has 27k miles on it. lol I dont think theyll even take mine for a core... I gotta look at the differences and start figuring it out again. I knew all this **** circa 2000-2012. lol
IIRC, the case is different and the internals are stronger in the later 80s 700's
IIRC, the case is different and the internals are stronger in the later 80s 700's
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Re: Whos happy with their 700R4?
Either that or go for a 90/91 core. It'll have the lastest edition of upgraded hard parts plus the valve body you're after.
The K cases (for 4x4's) are stronger although your builder will have to supply a 2WD output shaft and 3rd gen specific extension housing. That said, the case for me has never been an issue. I just ended up with the beefier case by default.
The link for LS1 Tech posted above has tons of good info should you decide to have someone private put it together rather than an aftermarket vendor.
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Car: 1987 IROC-Z
Engine: 406 on N20 w/ EFI
Transmission: P.B. 700R4
Axle/Gears: 12 bolt w/ 3.91
Re: Whos happy with their 700R4?
Its a 406 Small block chevy. gen 1
DART SHP block with callies forged crank and rods, mahle pistons, 10.5:1 compression ratio. 600 lift and 245 duration with 110 lobe seperation on the comp cams roller cam. Dart Pro1 215 heads with an Edelbrock Victor Jr manifold. NOS nitrous wet plate, currently jetted at 150 hp shot. Holley sniper EFI and hyperspark ignition system.
Yank Performance 9.5" Power Adder Series-3800 rpm converter, with lockup
DART SHP block with callies forged crank and rods, mahle pistons, 10.5:1 compression ratio. 600 lift and 245 duration with 110 lobe seperation on the comp cams roller cam. Dart Pro1 215 heads with an Edelbrock Victor Jr manifold. NOS nitrous wet plate, currently jetted at 150 hp shot. Holley sniper EFI and hyperspark ignition system.
Yank Performance 9.5" Power Adder Series-3800 rpm converter, with lockup
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