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#1 |
bbadfred
![]() Join Date: Mar 2008
Location: rantoul Il
Posts: 461
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ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
My 67 gmc shortbed fleetside is finially done at the body shop. Has anyone done a ls1/lq9 engine swap to a 67-72 shortbed pickup? I need info on this swap and ideas what to do about motor mounts and trans cross member mounts.
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#2 |
Insert Title Here
Join Date: Feb 2006
Location: Dyer, Indiana
Posts: 5,679
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
__________________
BOBBY _69 SWB_ 1000 pics of 67-72's>> http://s193.photobucket.com/albums/z...-72/?start=all << |
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#3 |
bbadfred
![]() Join Date: Mar 2008
Location: rantoul Il
Posts: 461
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
I forgot to give engine and trans specs. Its a 04 Lq9 enhanced 6 liter drive by wire truck motor. I have complete engine w/accessories and drive and trans + pcm, maf sensor,air tube and air cleaner, fuel tank and pump, exhaust pipes with sensors and throttle pedal and tak sensor. I intend to install as many stock parts as i can use with a injection wiring harness from speertech.
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#4 |
Registered User
Join Date: Aug 2008
Location: Pittsburg, KS
Posts: 2,466
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
ECE makes a nice set of motor mounts for the swap. I have a set for sale since I bought a dropmember.
http://www.67-72chevytrucks.com/vboa...d.php?t=320574 Last edited by m6z; 12-26-2008 at 11:08 PM. |
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#5 |
Formerly- 1972SuperCheyenne
![]() Join Date: Oct 2008
Location: Wake Forest NC
Posts: 5,782
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
Use the search function @ the top of the page. This forum is overflowing with knowlege about this swap. Best of luck on your build, and dont forget to post pictures.
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--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. |
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#6 |
Registered User
Join Date: Oct 2007
Location: Sherwood Oregon
Posts: 1,908
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
Yes a very popular swap. I am planning one in the near future. Search this forum and also try looking around over @ LS1tech.com. They have a special sections for conversions like this
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#7 |
bbadfred
![]() Join Date: Mar 2008
Location: rantoul Il
Posts: 461
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
Thanks guys forgive me for being lazy! I posted pics on the other link of the truck with more of an explination.
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#8 |
Registered User
Join Date: Jan 2008
Location: Lacombe, Alberta
Posts: 353
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
I got mine from performanceonline.com. It came with trans crossmember, motor mounts and tubeular pedalstals.
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#9 |
Registered User
Join Date: Oct 2007
Location: Sherwood Oregon
Posts: 1,908
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
I think the POL one is probably the same one CPP sells
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#10 |
Senior Member
Join Date: Aug 2005
Location: tulsa OK
Posts: 3,070
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
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#11 |
bbadfred
![]() Join Date: Mar 2008
Location: rantoul Il
Posts: 461
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
bump!
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#12 |
bbadfred
![]() Join Date: Mar 2008
Location: rantoul Il
Posts: 461
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
Here are truck pics will post engine tomorrow. I gpt this truck in 97 and it had 1987 305 engine,350 trans, rearend, 5 on 5 bolt pattern spindles with power disc brakes and power steering . I lowered it 3 and 5 and drove it til 02 and parked it til I put in the body shop in 06. My plan is to install the mostly stock lq9 and trans with factory cruise (built in puter in drive by wire engines). The lq9 is rated at 345hp and 385 torque. I an looking for a driver that gets good gas mileage with good power. I will be using a speartech inj harness and reprogrammed PCM with stock wiring harness for the truck.
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#13 |
Registered User
Join Date: Aug 2006
Location: Reno, NV
Posts: 346
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
Just out of curiosity, what exactley is the motor out of? That tranny wasn't from the same truck, correct? Are you going to mod the motor at all or just leave it stock? Nice looking truck by the way!
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1971 Suburban 4x4, LQ4 6.0L, 4L80E, etc. Last edited by boostat4500; 12-31-2008 at 01:20 AM. |
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#14 |
Registered User
Join Date: Sep 2000
Location: Gower, MO.
Posts: 219
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
Wow other than the 67 back window I'd say I was looking at my 70 about 9 years ago
![]() Good luck on the swap, the POL mounts are working great for me and just eyeball everythings alignment twice as your doing the swap/assembly ![]()
__________________
If patience is truely a virtue, Then I am so screwed 1970 Chevy SWB 331 sbc and all the goodies. Under resurection 2001 Vette |
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#15 |
bbadfred
![]() Join Date: Mar 2008
Location: rantoul Il
Posts: 461
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
Everything is from a 04 loaded two wheel drive Silverado. It called an enhanced 6.0 liter engine and trans. Supposedly used in high end chevy p/u and Denali and Escalades supposedly to give the heavier trucks more power? I am going to to pretty much leave it stock and go for gas mileage. My last few projects before we went drag racing (IHRA Top dragster) were big block cars that were fast but no mileage. our pro street 60 vette ran 11.30s on motor full street legal and had 17,000 street miles at 10 mpg. It ran 9.70s on 250 hp of nitrous. Heres a couple of pics. Oh by the way wife drove I wrenched!
Last edited by bbadfred; 12-31-2008 at 11:35 AM. |
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#16 |
bbadfred
![]() Join Date: Mar 2008
Location: rantoul Il
Posts: 461
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
heres car pics
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#17 |
Registered User
Join Date: Apr 2008
Location: Houston, TX
Posts: 247
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
that 6.0 is a stout motor, FYI, you can mod those motors and still get very good gas mileage, i have a 6.0 in my ext. cab and runs 12.3's in the quarter. it gets 14mpg city/19mpg highway, and have 4.11's, the 14mpg city comes from having a 4000 converter! dont be afraid to mod these new LS motors they are built tough and wont sacrafice drivabiltiy...
for harnesses look into wait4meperformance.com... best deal around... and nelsonperformance in San Antonio TX, he does awesome jobs on harnesses as well..
__________________
1971 C-10 SWB - LS swap w/4L60e, 20x8.5front 20x12rear, 1968 C-10 SWB - 454 BB TH350 -Gone! |
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#18 |
bbadfred
![]() Join Date: Mar 2008
Location: rantoul Il
Posts: 461
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Re: ls1/lq9 6 liter engne/4L65 trans swap in 67-72 gmc short bed
thanks I am going to do a few things to it including a 31 spline 9 inch rearend I have several ring and pinions for it 3.40, 3.73, 3.89, 4.11. I am still up in the air about engine mods I understand that the steel block 6liter has a lot of potential and strength for performance upgrades. I am still a big fan of nitrous and have a lot of left over N.O.S stuff left over from racing. Soo who knows
![]() Last edited by bbadfred; 01-01-2009 at 01:05 PM. |
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