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05-17-2011, 06:36 AM
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#1 |
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Registered User
Join Date: Nov 2010
Location: MICHIGAN
Posts: 196
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700r4 vs. 4l60e
What type of difference in gas mileage would I see if I used a 700r4 instead of a 4l60e on a 5.3 swap ? The reason I am considering going with the 700 is because I just had the trans rebuilt.
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1987 Buick Grand National 2018 Road Glide Special |
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05-17-2011, 09:54 AM
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#2 |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: 700r4 vs. 4l60e
Biggest difference you would see is probably from the way the trannies are geared. I imagine you'd see a slight drop using the 700, plus you'd be going to imo an inferior trans.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING  |
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05-17-2011, 11:16 AM
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#3 |
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1965 Chevy C10, 2005 4.8L/4l60
 
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,546
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Re: 700r4 vs. 4l60e
I assume it is int he burb? mileage really wouldnt be a factor would it?
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05-17-2011, 11:37 AM
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#4 |
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Registered User
Join Date: Nov 2010
Location: MICHIGAN
Posts: 196
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Re: 700r4 vs. 4l60e
It is for my burb. Want to get away from the carb 350 and pick up some mpg's. Just wondering if the price of a rebuilt 4l60e was worth it. My 700 is freshly rebuilt so if it won't hurt performance or mpg's to bad I will use it till it craps out.
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1987 Buick Grand National 2018 Road Glide Special |
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05-17-2011, 12:33 PM
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#5 |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: 700r4 vs. 4l60e
its a 700r4, you shouldn't have to wait too long.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING |
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05-17-2011, 03:43 PM
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#6 |
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Registered User
Join Date: Oct 2005
Location: Sacramento, CA
Posts: 1,970
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Re: 700r4 vs. 4l60e
Pretty much the same transmissions from what (little) I know! I believe they are geared the same as well. I think GM just renamed the 700r4 to the 4l60 and 4l60E which has to be controlled electronically. I don't think you would see any difference and would be better off with the 4l60E because it's controlled by the 5.3 ECU.
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72 Cheyenne SWB Fleet Nut & bolt frame off in progress...99.9999% - supercharged 383 - 4 wheel discs - relocated fuel tank -  My Build Thread |
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05-17-2011, 03:57 PM
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#7 | |
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The Engine Whisperer
Join Date: Sep 2006
Location: Ohio
Posts: 770
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Re: 700r4 vs. 4l60e
Quote:
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05-17-2011, 04:03 PM
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#8 |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: 700r4 vs. 4l60e
are you sure they didn't change year to year? My 700r4 had WAY different gearing than the 4l60e I had after it (not in my 66)
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING |
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05-18-2011, 09:44 AM
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#9 |
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Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: 700r4 vs. 4l60e
The 700R4, 4L60, & 4L60E have the same ratios.
1st 3.06 2nd 1.63 3rd 1.00 4th .70 There would be no difference in mileage. |
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