700r4 help

by TWBouska AKA Wooderson Sun Dec 19, 2010 8:14 pm

hey guys, have been looking for a good 700r4 core for a long time and havent been able to find one, finally found one online, getting ready to go look at it pretty soon. I called the guy, can tell he doesnt know jack about cars, I wanted to know what year the trans was because im only interested in 87-92, the guy said he got the trans already pulled and doesnt know what kind of car it came out of, also he says there are no numbers on it, so what I asking for help on is it anyone here knows how to ID these transmissions without serial numbers.

by bigredlaguna Sun Dec 19, 2010 8:27 pm

http://www.thirdgen.org/techboard/transmissions-drivetrain/48475-identify-early-vs-late.html

by TWBouska AKA Wooderson Sun Dec 19, 2010 8:42 pm

red, this is outstanding info, thank you.

by TWBouska AKA Wooderson Thu Mar 31, 2011 2:08 am

UPDATE 4/11/11

Built With:
87 "K-Code" 700r4 core
Monster Transmissions "Mega Monster" Rebuild Kit
AC Delco Five Pinion Planetaries
TCI Constant Pressure Valve Body
Carb TV Kickdown Bracket
B&M TV Cable
B&M Lock-Up Converter Control
Corvette 2200 Stall Converter W/ upgraded Thrust Washer (4130 Steel)

Total Invested: $2025.00 (not including paying to have the drive shaft shortened, I haven't done that yet)

by pila Thu Mar 31, 2011 9:25 am

Sounds like it will survive a heavy foot!! What rear end ratio ?

by TWBouska AKA Wooderson Thu Mar 31, 2011 2:15 pm

right now just the stock gears (not sure on which ones they are for sure) but after the trans itll be getting 3.73's and a posi.

by BlackChevelleSS Thu Mar 31, 2011 9:14 pm

man as much as having an overdrive is nice I sure dont like TV cable transmissions. Hope it works out well for ya.

by bigredlaguna Thu Mar 31, 2011 9:41 pm

Somebody stickied a link I posted about TV setup in the engine & driveline section. Check it out if you haven't already.

by TWBouska AKA Wooderson Fri Apr 01, 2011 12:47 am

i got the b and m stuff, we used it in the 70 chevelle and the thing works great,when i get it all together ill give you guys a complete parts list in case you wanna try it, i NEED that overdrive with the way gas has gone up...i might leave the stock rear end gears in it too since its a daily.

by BlackChevelleSS Fri Apr 01, 2011 4:00 am

with a 700 first gear is so short that you dont need much gear to get off the line. 3.42 or 3.55 is where id stay at

by TWBouska AKA Wooderson Fri Apr 01, 2011 9:57 am

i thought about 3.42's, i was going to run them if i ended up putting in the 454, but with gas going up like it is i kinda put that off, but i still might just go 3.42s anyway

by JB2wheeler Fri Apr 01, 2011 10:20 am

Unless you do a lot of drag racing, you dont need that low a gear. For a street car with a big block torquy engine and an overdrive trans a 2.73 will work fine. Sure, a 3.08 would be even better. Its these small block cars that need these real low gears because they are not as torquy. JB

by TWBouska AKA Wooderson Sat Apr 02, 2011 12:44 pm

yeah, i was hoping to use the big block but for a daily in a car that gets a lot of miles i think its best i stick with an sbc...i got a 010 casting 350 4 bolt motor im rebuilding so ill probablly stick with that. The set up im running has pretty good low end torque as it is, so it might be ok, rearend needs rebuilt anyways though, axles at the minimum.

by pila Sat Apr 02, 2011 1:05 pm

That old saying; "you can't have your cake and eat it too" ,or if ya wanna play ya gotta pay!
Our fun is costing way too much these days...

by JB2wheeler Sat Apr 02, 2011 1:10 pm

When it comes to good gas milage, the way you drive has as much to do with it as to what engine you have in it. When I first got my 540 put in I drove it down to Elizabethtown and back on I-65 to break the engine in and got about twice the gas milage I expected to because I took it easy, I only got up to 70 once or twice. JB

by TWBouska AKA Wooderson Sat Apr 02, 2011 11:56 pm

another good point j2b...i baby my car...its so expensive to live out here and i only make about 40k a year that i dont beat on my car at all because i cant afford to fix it for the same amount it cost me the first time around...im gonna be taking 4 of my A.S.E's (auto certifications) in May so that should qualify me for about a $10 per flat rate hour raise so thankfully that should help.

by pila Sun Apr 03, 2011 12:38 am

Good luck with your certifications. The industry needs good techs.

by TWBouska AKA Wooderson Mon Apr 11, 2011 6:48 pm

thanks Pila...I will have my work cut out for me.

by Pdawgie Mon Apr 11, 2011 7:00 pm

I just put a 700R4 in mine about 2 weeks ago. Excellent hwy mileage now... pretty closely doubled, around town, not so much. Do love that OD though. I used one of the older R4's (86) and he upgraded the pumps and I think he said the clutch pack assembly. I brought in a Transgo kit, and I tell you that thing rocks.

by TWBouska AKA Wooderson Mon Apr 11, 2011 7:56 pm

yeah im pretty excited for it, most of my driving is highway, my girlfriends dad has one in his car with a similar 350 to mine in it and hes getting about 24 mpg's highway, so im hoping for at least 22 since my motor is a little more cammed up than his.

by pila Mon Apr 11, 2011 11:42 pm

I've used a few Transgo shift kits, mostly in TH350s. They seem better than others I've tried.

by TWBouska AKA Wooderson Wed Apr 13, 2011 12:49 am

never heard of them, but i was really happy with the customer service at Monster, we'll see how the product turns out here in a week or two when i get the tranny installed.

by pila Wed Apr 13, 2011 7:31 pm

I did a TH400 for my El Camino, and used a Transgo in that one too.

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