what transmission to go with advice please.. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

craazy22 · 03-14-2013, 06:30 PM

well as of now i have a rebuilt to stock specs 454. i am planning on slapping some heads later with a nice cam to match but nothing to crazy. i was wondering if i should go with a 700r or a th400. im really lost when it comes to this. is not my daily driver nor will it ever be. just thinking a 700r will die too quick. but i think the th400 is gonna have the 454 screaming on freeway. input please guys thanks.

rocknss · 03-14-2013, 06:42 PM

I would go with the 700R4 for there gas mileage and they can be built to handle your 454.

cableguy0 · 03-14-2013, 06:57 PM

Unless you have a really good broom to sweep up the guts of that 700r4 every few months just put a th400 in it. The only good option for an overdrive trans behind a big block is the 4l80e but you have to deal with a computer to run it.

vidman · 03-14-2013, 07:01 PM

Unless you go crazy with the motor a good 700 will work for a while. But the 400 or a 4l80 is better

trevrolet65 · 03-14-2013, 07:14 PM

400 turbo is easiest and less hassle and less expensive. If you decide to modify the bbc, the 400th can be built to a 475th for little $'s. The fun thing is it will shift when left in first gear to second on its own, at the top of its gain, cherp.

Blue Rat · 03-14-2013, 07:47 PM

Well I think a 400TH would do the job with out sweating an give you peace of mind. But the 700R4 would work too. But you would always be thinking when it is going to go in the back of your mind unless be fairly easy on it.

clinebarger · 03-14-2013, 08:27 PM

Building a 700R4 to stand up to a mild 454 gets pricey...To the point its not worth the fuel savings. Same thing with cost of a 4L80E swap.

A TH400 would be the best bet. A TH475 just has straight cut planets...& noisey. How many people have broke TH400 planets??

meatwagon83 · 03-15-2013, 12:45 AM

i'd go with a 4l80e as a matter of fact thats what im doing!

Ziegelsteinfaust · 03-15-2013, 12:05 PM

A built 700 is going to cost about $2500 to last any decent time behind the 454, and that is now about what a 4L80E can be swapped in for with a bench rebuild.

If you can find a low mileage 4L80 for $500, the controller cost about $600, and requisite drive shaft mods. You could likely do it for less then $1500 if you search.

Plus the 4L80 will last behind a warmed up 454 with nothing more then a shift kit, and correct tuning.

meatwagon83 · 03-15-2013, 01:56 PM

Quote:

Originally Posted by Ziegelsteinfaust

A built 700 is going to cost about $2500 to last any decent time behind the 454, and that is now about what a 4L80E can be swapped in for with a bench rebuild.

If you can find a low mileage 4L80 for $500, the controller cost about $600, and requisite drive shaft mods. You could likely do it for less then $1500 if you search.

Plus the 4L80 will last behind a warmed up 454 with nothing more then a shift kit, and correct tuning.

thats what i did, i got a whole 2005 3/4 ton van with a 6.0 and a fresh 4l80e for $500, the po thought it had a rod knocking, but i knew it was a cracked flywheel!!

derrickmanx1 · 03-15-2013, 03:39 PM

Quote:

Originally Posted by clinebarger

Building a 700R4 to stand up to a mild 454 gets pricey...To the point its not worth the fuel savings. Same thing with cost of a 4L80E swap.

A TH400 would be the best bet. A TH475 just has straight cut planets...& noisey. How many people have broke TH400 planets??

X2 100% That's what i'm doing. I've heard too many horror stories about BBC and 700 R4.

derrickmanx1 · 03-15-2013, 03:47 PM

Quote:

Originally Posted by clinebarger

Building a 700R4 to stand up to a mild 454 gets pricey...To the point its not worth the fuel savings. Same thing with cost of a 4L80E swap.

A TH400 would be the best bet. A TH475 just has straight cut planets...& noisey. How many people have broke TH400 planets??

X2 100% That's what i'm doing. I've heard too many horror stories about BBC and 700 R4.

crazy longhorn · 03-15-2013, 08:31 PM

I would put a 400 T in that, & never look back! The BB will have enough power to pull a taller rear gear....give you a little better "cruise speed' on the hyway, & still rock &roll on the "loud peddle'....crazyL

jfortvalley · 03-16-2013, 11:07 AM

i cant believe no one said use 200r4 it will handle the big block but it is pricy

meatwagon83 · 03-16-2013, 05:06 PM

Quote:

Originally Posted by jfortvalley

i cant believe no one said use 200r4 it will handle the big block but it is pricy

like 3k pricey for one that will live behind a bb

03-14-2013, 06:30 PM	#1
craazy22 Registered User Join Date: Jun 2007 Location: Houston, TX Posts: 230	what transmission to go with advice please.. well as of now i have a rebuilt to stock specs 454. i am planning on slapping some heads later with a nice cam to match but nothing to crazy. i was wondering if i should go with a 700r or a th400. im really lost when it comes to this. is not my daily driver nor will it ever be. just thinking a 700r will die too quick. but i think the th400 is gonna have the 454 screaming on freeway. input please guys thanks. __________________ 81 chevy stepside 6.0/t56 swap in progress.... 81 chevy silverado k5 2wd 350 tpi and 700r4.. SOLD 07 chevy colorado "work truck" SOLD 02 chevy silverado z71 off road package

03-14-2013, 06:42 PM	#2
rocknss Registered User Join Date: Oct 2004 Location: Milwaukee, WI Posts: 403	Re: what transmission to go with advice please.. I would go with the 700R4 for there gas mileage and they can be built to handle your 454.

03-14-2013, 06:57 PM	#3
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,950	Re: what transmission to go with advice please.. Unless you have a really good broom to sweep up the guts of that 700r4 every few months just put a th400 in it. The only good option for an overdrive trans behind a big block is the 4l80e but you have to deal with a computer to run it. __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

03-14-2013, 07:01 PM	#4
vidman Registered User Join Date: Jun 2012 Location: Fitchburg,Mass Posts: 737	Re: what transmission to go with advice please.. Unless you go crazy with the motor a good 700 will work for a while. But the 400 or a 4l80 is better __________________ 62 Willys 4wd Pickup : 72 C-10 swb 504 stroker 09 Taco 3" lift 33" tires: 90 K-5 blazer (plow truck): RIP Ross Little brother

03-14-2013, 07:14 PM	#5
trevrolet65 Registered User Join Date: Nov 2010 Location: Venus Texas Posts: 217	Re: what transmission to go with advice please.. 400 turbo is easiest and less hassle and less expensive. If you decide to modify the bbc, the 400th can be built to a 475th for little $'s. The fun thing is it will shift when left in first gear to second on its own, at the top of its gain, cherp.

03-14-2013, 07:47 PM	#6
Blue Rat Registered User Join Date: Dec 2010 Location: Arkansas Posts: 608	Re: what transmission to go with advice please.. Well I think a 400TH would do the job with out sweating an give you peace of mind. But the 700R4 would work too. But you would always be thinking when it is going to go in the back of your mind unless be fairly easy on it.

03-14-2013, 08:27 PM	#7
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: what transmission to go with advice please.. Building a 700R4 to stand up to a mild 454 gets pricey...To the point its not worth the fuel savings. Same thing with cost of a 4L80E swap. A TH400 would be the best bet. A TH475 just has straight cut planets...& noisey. How many people have broke TH400 planets??

03-15-2013, 12:45 AM	#8
meatwagon83 Registered User Join Date: Dec 2012 Location: Preble county ohio Posts: 1,914	Re: what transmission to go with advice please.. i'd go with a 4l80e as a matter of fact thats what im doing! __________________ "DON'T TOUCH THE TRIM!!"-Early Kyler

03-15-2013, 12:05 PM	#9
Ziegelsteinfaust Registered User Join Date: Dec 2012 Location: Temple City Posts: 3,567	Re: what transmission to go with advice please.. A built 700 is going to cost about $2500 to last any decent time behind the 454, and that is now about what a 4L80E can be swapped in for with a bench rebuild. If you can find a low mileage 4L80 for $500, the controller cost about $600, and requisite drive shaft mods. You could likely do it for less then $1500 if you search. Plus the 4L80 will last behind a warmed up 454 with nothing more then a shift kit, and correct tuning.

03-15-2013, 08:31 PM	#13
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	Re: what transmission to go with advice please.. I would put a 400 T in that, & never look back! The BB will have enough power to pull a taller rear gear....give you a little better "cruise speed' on the hyway, & still rock &roll on the "loud peddle'....crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

03-16-2013, 11:07 AM	#14
jfortvalley Registered User Join Date: Mar 2012 Location: fortvalley ga Posts: 345	Re: what transmission to go with advice please.. i cant believe no one said use 200r4 it will handle the big block but it is pricy



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