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mid 11 sec streetable 350 18-22mpg?

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Old Feb 12, 2013 | 12:02 PM
  #51  
TKR 88 GTA's Avatar
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Joined: Dec 2008
Posts: 209
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From: Aurora CO
Car: 1988 GTA Trans Am
Engine: HSR 350
Transmission: 700R4
Axle/Gears: 3.27
Re: mid 11 sec streetable 350 18-22mpg?

Easily too. My buddy up here has a 408 lq9 behind a 6 speed tho and he's able to get 24+ mpg and runs mid to high 12s in 5800ft elevation
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Old Feb 12, 2013 | 03:18 PM
  #52  
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Originally Posted by MMroc86
Alright, went & checked out the LQ9 tonight...

Going to pick this bad boy up tomorrow. minus the truck intake.

Getting 4l60e+engine+pcm for $1700 Its from an 05 silverado ss. I'm bulletproof unless the block is cracked right?

? can I use the truck pcm or will that be useless?
Time to abandon this thread and start a new one in the LTx and LSx subforum.
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Old Feb 12, 2013 | 10:22 PM
  #53  
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From: Houston
Car: 1986 IROC-Z28 & 1987 GTA
Engine: 305 TPI & 350 TPI
Transmission: 700R4
Re: mid 11 sec streetable 350 18-22mpg?

My build thead

https://www.thirdgen.org/forums/ltx-...ml#post5488449
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Old Feb 13, 2013 | 06:40 PM
  #54  
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From: lefroy, ontario
Car: 1990 gta
Engine: 383,tfs heads,hsr
Transmission: 700r4
Axle/Gears: 12 bolt 3.73
Re: mid 11 sec streetable 350 18-22mpg?

Originally Posted by five7kid
4L60E is the same length as a TH700. However, the LS-series moved the mount location.

Output yokes are the same. 3rd and 4th gen driveshafts interchange (except for the early 4-speed manual and TH200C)

i was under the impression that the trucks with the 4l60e had a longer tail on the trans???
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