454ci with 400 or 700r4 tranny - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jrobertop88 · 02-23-2012, 03:01 AM

What is better option for the 454, want to haul @$$, and be quick. But save gas too lol, sounds crazy I know, but it can be done right? Lol. The 400 or the 700r4 ? Thanks for the future info fellas.
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brokenspoke · 02-23-2012, 07:09 AM

Depends on rear end ratio you have

rbar · 02-23-2012, 08:23 AM

If the engine has alot of torque you might consider a 4L80E, but it's going to cost nearly twice as much.
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hd74 · 02-23-2012, 10:10 AM

i have a 700r4 behind my 454 it has a hwy gear and i avoid drag strip starts. my motor has a high torque . i like it ! when you mean fast that has a lot of meaning

Batchief909 · 02-23-2012, 10:34 AM

I have a 454 running with the 400 and 308 rear. I'm happy.

MalibuKasey · 02-23-2012, 10:52 AM

4L80E is your best bet... atleast... thats what I would do.

**Clyde65** · 02-23-2012, 11:21 AM

If your motor is "built" meaning over 450 ft lbs of tourque, the 400/4l80 will be your only options. the 700 just wont handle alot of torque or hard launches with that much or more grunt. no sense in throwing away money IMO. can you get a beefy 700? yes, do you want to spend 3K building one and then nuke it on a burn out? no!

61_FL_Apache · 02-23-2012, 11:53 AM

Quote:

Originally Posted by Clyde65

If your motor is "built" meaning over 450 ft lbs of tourque, the 400/4l80 will be your only options. the 700 just wont handle alot of torque or hard launches with that much or more grunt. no sense in throwing away money IMO. can you get a beefy 700? yes, do you want to spend 3K building one and then nuke it on a burn out? no!

I agree with this. If you want a 3 speed go with the 400, 4 speed the 4l80 will be the one.

198plus · 02-23-2012, 11:56 AM

400

vin63 · 02-23-2012, 08:38 PM

Quote:

Originally Posted by jrobertop88

What is better option for the 454, want to haul @$$, and be quick. But save gas too lol, sounds crazy I know, but it can be done right? Lol. The 400 or the 700r4 ? Thanks for the future info fellas.
Posted via Mobile Device

The 700R4 is not going to last very long...it's the amount of torque that will eventually be its demise. I would opt for the TH400 or a 4L80.

**Captainfab** · 02-24-2012, 01:26 AM

I have a TH400 behind the 454 in my Burb and have been totally happy with it except for the highway rpm's. I will be switching to a 4L80E in the near future to lower my highway rpm's and attempt a gain in mpg's. I had thoughts about switching my 3.42 gears for a set of 3.07's, but I like how it launches now. I wouldn't even consider switching to a 700R4 behind a big block.

02-23-2012, 03:01 AM	#1
jrobertop88 Registered User Join Date: Feb 2012 Location: anaheim ca Posts: 135	454ci with 400 or 700r4 tranny What is better option for the 454, want to haul @$$, and be quick. But save gas too lol, sounds crazy I know, but it can be done right? Lol. The 400 or the 700r4 ? Thanks for the future info fellas. Posted via Mobile Device

02-23-2012, 07:09 AM	#2
brokenspoke Registered User Join Date: Jul 2011 Location: Anderson, Texas Posts: 535	Re: 454ci with 400 or 700r4 tranny Depends on rear end ratio you have

02-23-2012, 08:23 AM	#3
rbar Registered User Join Date: Nov 2010 Location: Meridian, Idaho Posts: 422	Re: 454ci with 400 or 700r4 tranny If the engine has alot of torque you might consider a 4L80E, but it's going to cost nearly twice as much. Posted via Mobile Device __________________ 1963 Chevy stepside 327 1965 Chevy swb 383 1996 Mystic Mustang Cobra 2009 Pontiac G8 GXP 415hp/415tq 6speed

02-23-2012, 10:10 AM	#4
hd74 Registered User Join Date: Jun 2009 Location: shellman bluff,ga Posts: 250	Re: 454ci with 400 or 700r4 tranny i have a 700r4 behind my 454 it has a hwy gear and i avoid drag strip starts. my motor has a high torque . i like it ! when you mean fast that has a lot of meaning

02-23-2012, 10:34 AM	#5
Batchief909 Registered User Join Date: Sep 2011 Location: Mooresville, Indiana Posts: 13	Re: 454ci with 400 or 700r4 tranny I have a 454 running with the 400 and 308 rear. I'm happy.

02-23-2012, 10:52 AM	#6
MalibuKasey Artist Join Date: Jan 2010 Location: Rockwell NC Posts: 422	Re: 454ci with 400 or 700r4 tranny 4L80E is your best bet... atleast... thats what I would do. __________________ 66 Chevy C10 283ci~cough~ SBW Fleet Buttercup '66

02-23-2012, 11:21 AM	#7
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,541	Re: 454ci with 400 or 700r4 tranny If your motor is "built" meaning over 450 ft lbs of tourque, the 400/4l80 will be your only options. the 700 just wont handle alot of torque or hard launches with that much or more grunt. no sense in throwing away money IMO. can you get a beefy 700? yes, do you want to spend 3K building one and then nuke it on a burn out? no! __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

02-23-2012, 11:56 AM	#9
198plus Registered User Join Date: May 2009 Location: Loganville, Ga. Posts: 1,408	Re: 454ci with 400 or 700r4 tranny 400 __________________ My Build http://67-72chevytrucks.com/vboard/s...d.php?t=346597 https://www.facebook.com/pages/198-C...1434001?ref=hl

02-24-2012, 01:26 AM	#11
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,247	Re: 454ci with 400 or 700r4 tranny I have a TH400 behind the 454 in my Burb and have been totally happy with it except for the highway rpm's. I will be switching to a 4L80E in the near future to lower my highway rpm's and attempt a gain in mpg's. I had thoughts about switching my 3.42 gears for a set of 3.07's, but I like how it launches now. I wouldn't even consider switching to a 700R4 behind a big block. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE



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