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02-05-2010, 08:34 PM
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Biggdaddy1962
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Join Date: Feb 2010
Location: Chas S.C.
Posts: 6
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Another 6.0 Swap
I just purchased a good running 2001 6.0 for my 2001 Silverado w/4.8. I drive this truck 5 days a week 80 miles round trip to work. My question is what can I do to the 6.0 to increase performance and not take a huge hit on driveability or gas mileage. It is a LQ4 engine. I can do any of the work myself but just don't have any experience with the LS Series engines. Can you shave the heads to get to the LQ9 compression and is it worth it? Would a stock Z06 cam and springs be a good choice? I have read that shorty headers on these engines is a waste of time. Is that the case? My truck has 3.08 gearing. The trans has a stock converter. I just don't want to reinvent the wheel here so if you have some good experience with what I am looking to do please let me know. Thanks Keith.
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02-05-2010, 10:11 PM
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Speedy
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Join Date: Jan 2009
Location: Augusta, Ks
Posts: 3,135
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I dont think you have 3.08 gears. But 4.10s will make a huge difference. I would go with a bigger can then that and a small conveter like the circle D restalled tb stall. And get a Nelson tune.... Nelson Performance - Performance without Sacrificing Drivability
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 2000 Silverado ECSB- 5.3 CAI, Pacesetter LTs, ORY- Pipe, Magnaflow XL, E-fan, Ported T/B , Nelson Tuned, Built 4l60e, Circle D Stall, 3.42s G80, 2-4 Drop, Hertz Highs, Rockford 501s *Waiting to be Installed* 220/222 .581/.581 114lsa, Magnacharger, 60lb injectors
2007 Hyosung GV650 The Little 650 Cruiser that could. 12.7 at 104 Mph
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02-07-2010, 02:37 PM
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Biggdaddy1962
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Join Date: Feb 2010
Location: Chas S.C.
Posts: 6
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I have owned the truck since new so I know the gearing is 3.08. 1700rpm@65mph. Any help here would be great.
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02-07-2010, 05:31 PM
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Looney Tuned
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Join Date: Mar 2009
Location: Palestine, TX
Posts: 471
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if you put some smaller chambered heads on there you can make some more power without anymore gas
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02' Silverado RCSB, CAI, LTs+ORY, 65E Servos, 1.75:1 SS-LW shaft rockers, Custom E-fans, Black Headlights and Bumper Lights
Up Next: 2/4 drop, 18'' titan 5spokes, forged 370ci, Beefed up 60E with HD2kit
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02-07-2010, 06:10 PM
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Canadian Ambassador
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Join Date: Aug 2007
Location: Honeywood, Ontario
Posts: 2,978
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243's off an 07+ 5.3 would be good on there
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'06 Silverado "CASH"
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02-07-2010, 09:25 PM
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Member
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Join Date: Dec 2007
Location: McAlester
Posts: 382
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that sounds like 3.42 gears. 4.10s will wake it up for sure though
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Slowest in Oklahoma...
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02-07-2010, 09:29 PM
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Speedy
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Join Date: Jan 2009
Location: Augusta, Ks
Posts: 3,135
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Thats funny my truck does the same at 65 and I have 3.42s.....On another note these trucks didnt come with that gear ratio.
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2000 Silverado ECSB- 5.3 CAI, Pacesetter LTs, ORY- Pipe, Magnaflow XL, E-fan, Ported T/B , Nelson Tuned, Built 4l60e, Circle D Stall, 3.42s G80, 2-4 Drop, Hertz Highs, Rockford 501s *Waiting to be Installed* 220/222 .581/.581 114lsa, Magnacharger, 60lb injectors
2007 Hyosung GV650 The Little 650 Cruiser that could. 12.7 at 104 Mph
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02-08-2010, 08:43 AM
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Speedy
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Join Date: Jan 2009
Location: Augusta, Ks
Posts: 3,135
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gu4 or gu6 option code
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2000 Silverado ECSB- 5.3 CAI, Pacesetter LTs, ORY- Pipe, Magnaflow XL, E-fan, Ported T/B , Nelson Tuned, Built 4l60e, Circle D Stall, 3.42s G80, 2-4 Drop, Hertz Highs, Rockford 501s *Waiting to be Installed* 220/222 .581/.581 114lsa, Magnacharger, 60lb injectors
2007 Hyosung GV650 The Little 650 Cruiser that could. 12.7 at 104 Mph
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02-08-2010, 06:36 PM
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Biggdaddy1962
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Join Date: Feb 2010
Location: Chas S.C.
Posts: 6
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The window sticker says GU4(3.08) but the sticker in the glove box say GU6 (3.42) with G80 posi. Did GM put 4.10 gear in these trucks? What will that do for gas mileage? This is my daily driver..
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Linear Mode
