The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 01-30-2012, 11:36 PM   #26
Ranger6202
Registered User
 
Join Date: Dec 2011
Location: Lyman Wyoming
Posts: 109
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

I believe they're the 2010 manifolds, but i don't know, when you search the SN's you get 6.2 for the description. The block they came on was supposedly a 5.3 out of a truck. My friend got the motor from a dealership that had the motor replaced on warranty. He gave it to me cause he was moving to Florida and not wanting to haul a mystery motor with him. I tore it down and found a cylinder sidewall blown open and a bent piston rod. The block has the 4.8 5.3 stamped on the outside, so i know those manifolds probably didn't come with it, since the 2010 camaro's are 6.2's right? I'm guessing the dealership threw them on there for some odd reason.
Ranger6202 is offline   Reply With Quote
Old 02-02-2012, 12:57 AM   #27
Gordonr1973
Home Built '87
 
Gordonr1973's Avatar
 
Join Date: May 2010
Location: Calgary, Alberta Canada
Posts: 1,830
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Very nice work, looks great!!
__________________
Gordon

1998 White Chev ext cab 2WD (Summer Project) http://67-72chevytrucks.com/vboard/s...d.php?t=408424
1987 Chev Silverado SWB (Winter Project Rebuild) http://67-72chevytrucks.com/vboard/s...d.php?t=424833
Truck Club http://67-72chevytrucks.com/vboard/s...d.php?t=466969
Gordonr1973 is offline   Reply With Quote
Old 02-04-2012, 05:38 AM   #28
Mr. 250r
Registered User
 
Mr. 250r's Avatar
 
Join Date: Dec 2010
Location: freeburg, illinois
Posts: 884
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

6.0 edlebrock shorty headers fit perfect on my driver side on passenger needed some slight hammer work to fit nothing im worried about they came on motor and i'm not a fan of frame notching also depends on the motor mounts had mine been set forward i would've had more of a problem
__________________
1987 Chevy V30 - http://67-72chevytrucks.com/vboard/s...d.php?t=573854
1988 IROC-Z Camaro - 305/T5 t-top play toy
1989 GMC V35 - Marbolo Express http://67-72chevytrucks.com/vboard/s...d.php?t=596850
1991 V2500 Suburban Silverado - Sold
1991 V2500 Suburban Scottsdale - Big Nasty http://67-72chevytrucks.com/vboard/s...d.php?t=497423
2001 3500 5.9 H.O NV56 EC DRW - Sold
2003 1500 Silverado - Weekender
2004 Ram 3500 5.9 H.O NV56 CC DRW - Sold
2005 Silverado 2500HD 6.6/ZF6 CC LWB
Mr. 250r is offline   Reply With Quote
Old 02-14-2012, 11:08 PM   #29
Ranger6202
Registered User
 
Join Date: Dec 2011
Location: Lyman Wyoming
Posts: 109
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Got a question for ya. I've just about got my wiring all done. Was wondering how the check engine light wire works coming out of the PCM? Does it constantly supply 12v or a ground and then interrupts it, or vice versa?
I found a mystery plug going into my firewall that has 2 plain yellow wires, one yellow black stripe wire and a solid black wire. When i let the black wire hang free, my check engine light comes on. But when i put it to 12v or ground, it goes out, so i'm assuming this used to be a switch or something that ran off the carb or diesel motor somewhere between the two engines that have been in this truck. I even went to the junk yard and went through about 6 old chevs/gm's and they didn't have this plug. I'll try and get pics tomorrow if i remember.
Ranger6202 is offline   Reply With Quote
Old 02-28-2012, 02:31 PM   #30
STOCKISH
Formerly- 1972SuperCheyenne
 
STOCKISH's Avatar
 
Join Date: Oct 2008
Location: Wake Forest NC
Posts: 5,791
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Great build so far. Killer looking truck!
__________________
--Josh

My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218

A good crossthread is better than Loctite any day.

Life is not about what you have, but who you have to share it with.
STOCKISH is offline   Reply With Quote
Old 03-10-2012, 01:21 AM   #31
Ranger6202
Registered User
 
Join Date: Dec 2011
Location: Lyman Wyoming
Posts: 109
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Guess i better update whats happened the past month. 2 days ago i fired her up for the first time! It was a huge relief....started on the first crank. I was worried about the DBW working completely correct and it did!

I did have a few other issues to work through though. For one my exhaust wasn't fab'd up yet, so i just hung the O2's just under the manifolds with some fencing wire. It would start up just fine, but when it idled down and tried to smooth out, the idle would deteriorate within 40 seconds to a bad lope to where it was about to die. Since then, i finally got the exhaust fab'd in and it fixed that idling problem.

Second problem was my temperature. According to my dash gauge i was hitting 240 degrees and my thermostat wasn't opening (top and bottom rad hoses were still cold) and my electric fans weren't kicking on. I was worried it was gonna over heat. So i left it alone till i could borrow a temp gun from a friend. Turns out my dash gauge is way off. I'm guessing the gauge doesn't match my temp sender, so i'll be heading to the junk yard to find another gauge. I'd change the sender out, but i had it milled down and threaded to metric for the block. I finally just ran it around town and then let it sit in my driveway and the top hose finally got hot and then my fans kicked on, so i'm positive my gauge is not mated with my sender correctly.
Third problem, i broke my VSS. For some reason the square stock that you use to run from the transfer case into the VSS is too long and when i tightened it down, it pushed into the VSS too much and eventually broke the stem inside. So now my truck surges a little when first starting out and drops off a hair too much when i let off since it doesn't know its moving. New VSS should be here Monday though. I did drive it with the VSS working before i tightened it down more, so i know this is the drive ability issues i'm having.

The fourth issue i'm still working is that my Power Steering pump is whining. It doesn't do it when i'm idling, just when i give it some RPMs and if i apply the brakes (hydro boost).

Other than that, she runs like a champ. Definitely has A LOT of top end compared to the 350 i had in there before. And it cruises so smoothly!
Ranger6202 is offline   Reply With Quote
Old 03-10-2012, 01:58 AM   #32
Ranger6202
Registered User
 
Join Date: Dec 2011
Location: Lyman Wyoming
Posts: 109
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Name:  IMG_20120215_182932.jpg
Views: 4309
Size:  59.8 KB

Name:  IMG_20120215_182902.jpg
Views: 4111
Size:  54.4 KB

Name:  IMG_20120215_205558.jpg
Views: 4738
Size:  47.0 KB

Name:  IMG_20120215_205621.jpg
Views: 4131
Size:  50.1 KB

Name:  IMG_20120215_205650.jpg
Views: 4121
Size:  41.7 KB
Ranger6202 is offline   Reply With Quote
Old 03-10-2012, 02:16 AM   #33
Ranger6202
Registered User
 
Join Date: Dec 2011
Location: Lyman Wyoming
Posts: 109
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Name:  IMG_20120215_214340.jpg
Views: 5609
Size:  75.5 KB

Name:  IMG_20120229_205539.jpg
Views: 4218
Size:  71.6 KB

Name:  IMG_20120302_200357.jpg
Views: 4469
Size:  65.8 KB

Name:  IMG_20120302_200429.jpg
Views: 5609
Size:  67.7 KB

Name:  IMG_20120306_184632.jpg
Views: 4111
Size:  52.8 KB
Ranger6202 is offline   Reply With Quote
Old 03-10-2012, 01:53 PM   #34
noonzor
Registered User
 
Join Date: Aug 2009
Location: Edmonton, Alberta
Posts: 818
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Nice progress dude!
__________________
69 c10 Shortbox Build

http://67-72chevytrucks.com/vboard/s...d.php?t=360622
noonzor is offline   Reply With Quote
Old 03-16-2012, 11:21 PM   #35
Ranger6202
Registered User
 
Join Date: Dec 2011
Location: Lyman Wyoming
Posts: 109
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Been driving it for about 2 weeks now. I don't think i'll ever run a carbureted motor in an old vehicle again! The difference is substantial! Very very smooth, Tons of top end, Fires up first try everytime, Runs very cool. And although the TH400 isn't helping my mileage, its still better than the 350 i had.
Ranger6202 is offline   Reply With Quote
Old 03-21-2012, 01:14 PM   #36
imsuchaman55
Registered User
 
imsuchaman55's Avatar
 
Join Date: Nov 2010
Location: Sacramento CA
Posts: 112
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Quote:
Originally Posted by Ranger6202 View Post
Guess i better update whats happened the past month. 2 days ago i fired her up for the first time! It was a huge relief....started on the first crank. I was worried about the DBW working completely correct and it did!

I did have a few other issues to work through though. For one my exhaust wasn't fab'd up yet, so i just hung the O2's just under the manifolds with some fencing wire. It would start up just fine, but when it idled down and tried to smooth out, the idle would deteriorate within 40 seconds to a bad lope to where it was about to die. Since then, i finally got the exhaust fab'd in and it fixed that idling problem.

Second problem was my temperature. According to my dash gauge i was hitting 240 degrees and my thermostat wasn't opening (top and bottom rad hoses were still cold) and my electric fans weren't kicking on. I was worried it was gonna over heat. So i left it alone till i could borrow a temp gun from a friend. Turns out my dash gauge is way off. I'm guessing the gauge doesn't match my temp sender, so i'll be heading to the junk yard to find another gauge. I'd change the sender out, but i had it milled down and threaded to metric for the block. I finally just ran it around town and then let it sit in my driveway and the top hose finally got hot and then my fans kicked on, so i'm positive my gauge is not mated with my sender correctly.
Third problem, i broke my VSS. For some reason the square stock that you use to run from the transfer case into the VSS is too long and when i tightened it down, it pushed into the VSS too much and eventually broke the stem inside. So now my truck surges a little when first starting out and drops off a hair too much when i let off since it doesn't know its moving. New VSS should be here Monday though. I did drive it with the VSS working before i tightened it down more, so i know this is the drive ability issues i'm having.

The fourth issue i'm still working is that my Power Steering pump is whining. It doesn't do it when i'm idling, just when i give it some RPMs and if i apply the brakes (hydro boost).

Other than that, she runs like a champ. Definitely has A LOT of top end compared to the 350 i had in there before. And it cruises so smoothly!
Awesome build! I am thinking about doing another LS swap with a crew cab like yours. I am currently doing one in a 68 SWB and I also love the added power and drivability it has. When I got mine fired up, it was whinning like that also, and I thought it was the PS pump going bad, but I was checking the PS fluid level and noticed the fluid was really dirty. So I ran it for a little while. Shut it off, got a turkey baster, and sucked out as much of the fluid as I could. Filled it with fresh fluid and flushed again. It made all of the whining go away and now doesnt make any noise at all. I think it was from the engine sitting or the original fluid never being changed. Its worth a shot. Im very interested to see how this turns out.
imsuchaman55 is offline   Reply With Quote
Old 05-14-2012, 08:01 AM   #37
drama808
Registered User
 
drama808's Avatar
 
Join Date: Apr 2012
Location: ND
Posts: 19
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Quote:
Originally Posted by Ranger6202 View Post
Been driving it for about 2 weeks now. I don't think i'll ever run a carbureted motor in an old vehicle again! The difference is substantial! Very very smooth, Tons of top end, Fires up first try everytime, Runs very cool. And although the TH400 isn't helping my mileage, its still better than the 350 i had.
What kind of mileage are you getting with the TH400 behind it? I am about to tear my truck down for a LS engine, and like you will be running my th400 for the time being.
drama808 is offline   Reply With Quote
Old 05-14-2012, 06:26 PM   #38
mooseknuckles
Registered User
 
mooseknuckles's Avatar
 
Join Date: Sep 2009
Location: ottawa,canada
Posts: 4,550
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

my 6.o/4l80e is better on gas than my 305/700r4 was...with double the hp/tq.
mooseknuckles is offline   Reply With Quote
Old 05-14-2012, 06:29 PM   #39
drama808
Registered User
 
drama808's Avatar
 
Join Date: Apr 2012
Location: ND
Posts: 19
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Yeah, I understand that. I am curious what he gets with a non od tranny though.
Posted via Mobile Device
drama808 is offline   Reply With Quote
Old 05-14-2012, 09:52 PM   #40
Ranger6202
Registered User
 
Join Date: Dec 2011
Location: Lyman Wyoming
Posts: 109
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

With the carbed 350 i was only getting about 10-11 mpg. With the 6.0 i've been getting a consistant 12-13, but i have had my foot into it quite a bit more than i did with the 350. Its hard to let that extra 100hp just sit there if you know what i mean. I'm currently in the process of acquiring a 700r4 that i will be putting the TCI constant pressure valve body it it. And i'm certain i'll be able to get it up to about 15-17 mpg.
Ranger6202 is offline   Reply With Quote
Old 06-23-2012, 06:40 AM   #41
mcmlxix
Collector of Projects
 
mcmlxix's Avatar
 
Join Date: Apr 2003
Location: Las Vegas
Posts: 3,067
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Did the exhaust manifolds have 2 or 3 bolts at the collectors? What type of gasked does it use?
__________________
Rich
1972 K5 Blazer CST Click HERE

D60 BIG BRAKE UPGRADE Click HERE
mcmlxix is offline   Reply With Quote
Old 08-16-2012, 11:20 PM   #42
Ranger6202
Registered User
 
Join Date: Dec 2011
Location: Lyman Wyoming
Posts: 109
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

These manifolds only had 2 bolt flanges. As for the gaskets, i have a dirt track racing friend that had a machine shop convert him to using Blue RTV for exhaust gaskets. I was pretty skeptical the first time i heard this. But they've used it on multiple setups in their stock car and haven't had a leak one. In the past year i've used it on my '06 and this swap and haven't had a leak either....therefore i'm a believer now. No fabricated gaskets, just Blue RTV, equivilant or better for my exhaust gaskets from now on.
Ranger6202 is offline   Reply With Quote
Old 10-22-2012, 07:29 PM   #43
justin 84 k20
Registered User
 
Join Date: Jan 2012
Location: Chambersburg, Pa
Posts: 10
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

very cool build. i shoulda went this route from the start.
justin 84 k20 is offline   Reply With Quote
Old 11-08-2012, 11:30 AM   #44
Duramax40
Registered User
 
Duramax40's Avatar
 
Join Date: Jul 2011
Location: Saint Cloud, FL
Posts: 27
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Hey man great build. I am doing an lq9 in my 89 crew cab now. I was wondering what you did about your temp sending unit to your gauge not working right together and what kind of vss you used?
Posted via Mobile Device
Duramax40 is offline   Reply With Quote
Old 11-11-2012, 04:43 PM   #45
Ranger6202
Registered User
 
Join Date: Dec 2011
Location: Lyman Wyoming
Posts: 109
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

@ Duramax40:
To be honest, it was trial and error before i found the right combo with the temp sender to gauge. I went to a junk yard and got a bunch of different sensors and gauges. You'll notice some gauges go to 240 and others go to 260. At one point i had a sensor that was over ranging my 240 gauge, so i swapped the gauge to a 260, and its pretty close now. As for the VSS, i used a Dakota Digital VSS. There was an accident there though before i got it right. The piece of square stock they send you to drive the sensor and cable was too long for my setup, so when i tightened it down, it split the sensor completely in half. The sensor should be touching the fitting on your transfer case with no gaps before you wrench it down with the nut. If there's a gap, cut the stock shorter.
Ranger6202 is offline   Reply With Quote
Old 11-12-2012, 01:39 AM   #46
yellowGT
Registered User
 
yellowGT's Avatar
 
Join Date: Jan 2006
Location: Garland, TX
Posts: 969
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

so by the research i have done supposedly you dont have to buy the adapter that goes between motor and old skool tranny...is that right with using the lq4/lq9? Also what type of fuel system did you use? Part numbers would be excellent. Im about to do my crew cab dually and Im thinking about leaving my 400 in it but the mileage issue your having might have me look for a 4l80.
__________________

'84 swb chevy
'69 swb chevy
'68 swb chevy
'95 Impala ss-sold
'89 chevy crew cab dually 3+3
yellowGT is offline   Reply With Quote
Old 11-12-2012, 09:01 PM   #47
Kainedogg
Registered User
 
Kainedogg's Avatar
 
Join Date: May 2012
Location: MacDill AFB\Tampa
Posts: 151
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Great build friend. Sent you a pm as well. I have an '84 C10 with a 6.0\TH350 combo and the only thing stopping me from firing it up...is fuel...or fuel lines to be exact.
Kainedogg is offline   Reply With Quote
Old 12-05-2012, 05:56 PM   #48
OutlawDrifter
Registered User
 
Join Date: Aug 2012
Location: Northeast KS
Posts: 1,577
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

i love my jimmy, but if i found a ccsb for 3k that jimmy would be sent down the road!
__________________
1999 GMC Suburban K2500 SLT, 454/4L80E
1991 Z/28, 6.0L/T56
1949 GMC 250, S10 Frame, 6.0L/4L80E

Instagram @aceshighspeedshop
OutlawDrifter is offline   Reply With Quote
Old 01-22-2015, 11:47 PM   #49
Ranger6202
Registered User
 
Join Date: Dec 2011
Location: Lyman Wyoming
Posts: 109
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Its been quite a while since i've done any update on here of where Big Blue is at. It has successfully ran great for 3 years despite how hard i drive it. Last year i took on the challenge to learn how to rebuild a 4l80 and how to use HPtuners. I have successfully rebuilt a 4l80 for a friend and am currently building one with a custom gear set (2.9 1st) for Blue. Also, i recently purchased a turbo kit that will be implemented into Blue. So as these 2 new projects come along, i'll start posting some pics back on here.
__________________
'85 Crew Cab, '05 6.0 swap/th400/np205/14blt 4.10
'06 Vortec Max Crew Cab/Turbo
Ranger6202 is offline   Reply With Quote
Old 01-23-2015, 04:57 PM   #50
LSX408
Registered User
 
Join Date: Jan 2015
Location: Ruston, LA
Posts: 44
Re: lq4 6.0 swap into '85 Crew Cab Shorrbed

Nice swap, will be a blast with the turbo. Those 6.0s love boost!
__________________
1983 GMC SWB - 350, TH-400
2002 Camaro SS - 408 9sec street car
2000 Trans Am - H/C/I
2014 Chevy Z71
LSX408 is offline   Reply With Quote
Reply

Bookmarks

Tags
1985, 6.0, crew cab, lq4, swap

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 10:49 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Copyright 1997-2020 67-72chevytrucks.com