Ozzy's LQ9 LS swap thread for his 84 Trans Am
#51
Re: It has begun....my LQ9 LS swap thread
I was, from what I've been able to find, agree that I'll need a different set of bolts, but was also under the impression that the hub adapter stayed, because the LS transmissions weren't 100% compatible with the LQ motors...
#52
Moderator
iTrader: (14)
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 43,169
Likes: 0
Received 36 Likes
on
34 Posts
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Re: Ozzy's LQ9 LS swap thread for his 84 Trans Am
Only the early LQ4's, '99 & '00, which have the .4" longer crank hub. '01-up all have the same crank hub length as the 4.8/5.3/5.7, etc.
#54
Moderator
iTrader: (14)
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 43,169
Likes: 0
Received 36 Likes
on
34 Posts
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Re: Ozzy's LQ9 LS swap thread for his 84 Trans Am
Correct.
And the 4L80E is its own unique animal.
And the 4L80E is its own unique animal.
#56
Re: Ozzy's LQ9 LS swap thread for his 84 Trans Am
Dont bring the motor in. I had 4 broken manifold bolts on my 5.3... all broken flush with the head. Get a cheap welder and some 1/4" or 5/16" steel nuts from the store and weld those b@stards on... welding DC steel wont stick or harm the aluminum. THe heat from the weld helps loosen the bolt too. One you get a good weld on the nut/stud, use a socket or wrench to get the bolt out. Comes out like butter every time. Took me 30 min or so to get them all out when its on a stand. Hardest part is getting a good weld inside the nut to the stud.
For the tranny converter adapter... dont bother with the bolt on type. get the small adapter that slips inside the flexplate to align the converter. Thus if you change the tranny you just need to unbolt the tranny and slip the collar out back out and your golden. Plus the one I used is only like $25 on ebay.
For the tranny converter adapter... dont bother with the bolt on type. get the small adapter that slips inside the flexplate to align the converter. Thus if you change the tranny you just need to unbolt the tranny and slip the collar out back out and your golden. Plus the one I used is only like $25 on ebay.
#57
Moderator
iTrader: (14)
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 43,169
Likes: 0
Received 36 Likes
on
34 Posts
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Re: Ozzy's LQ9 LS swap thread for his 84 Trans Am
For the tranny converter adapter... dont bother with the bolt on type. get the small adapter that slips inside the flexplate to align the converter. Thus if you change the tranny you just need to unbolt the tranny and slip the collar out back out and your golden. Plus the one I used is only like $25 on ebay.
4L80E is a good tranny. For the stroked LQ4 I have in the '57, I got an SFI flexplate with the 6 converter mount bolt holes. My aftermarket converter only had three bolts - hasn't been a problem, though. Interestingly I had to use an LS1 starter on it - the LQ4/4L80E starter wouldn't work, nor would a 5.3. But the LS1 starter has been fine for 3 seasons, even with its 403 cubic inches and 11.3:1 CR.
#58
Re: Ozzy's LQ9 LS swap thread for his 84 Trans Am
My son's first LS swap vehicle (done by the previous owner) had one of those adapters that slips into the crank to align the converter hub. He had to pull the crank after the damper spun on the front end. We never did get that thing out of the crank.
4L80E is a good tranny. For the stroked LQ4 I have in the '57, I got an SFI flexplate with the 6 converter mount bolt holes. My aftermarket converter only had three bolts - hasn't been a problem, though. Interestingly I had to use an LS1 starter on it - the LQ4/4L80E starter wouldn't work, nor would a 5.3. But the LS1 starter has been fine for 3 seasons, even with its 403 cubic inches and 11.3:1 CR.
4L80E is a good tranny. For the stroked LQ4 I have in the '57, I got an SFI flexplate with the 6 converter mount bolt holes. My aftermarket converter only had three bolts - hasn't been a problem, though. Interestingly I had to use an LS1 starter on it - the LQ4/4L80E starter wouldn't work, nor would a 5.3. But the LS1 starter has been fine for 3 seasons, even with its 403 cubic inches and 11.3:1 CR.
hmm intereresting. Mine slipped right out and currently resides on the conveyer but slips off easily. I did use Lucas red tac with antiseize lubricant on it before install and used fine sand paper to clean out the back of the crank and on the converter.
Either way they still work, don't require removal of the flexplate and should slip on and off. Just another cheaper option. I've run the bolt on type on my 521 BBF and that worked well.
#59
Re: Ozzy's LQ9 LS swap thread for his 84 Trans Am
So after a long time off I've been working slowly. I managed to sell my old exhaust, acessories, carb and intake and 700r4 so ive been able to recoup some of my budget.
In the mean time ive settled on using the Hooker Blackheart Exhaust and mount system.
The engine itself is a 6.0 that i needed to have bores .005 to clean up a few of the cylinders as well as linr hone and then clean up and balance the crank.
Ls6 Intake Manifold, ported 243 heads from Thompson Motorsports, And Engine Power Systems (EPS) cam is 226/230 duration, .604/.604 lift on a 113 LSA. When the shop was done with the short block I assembeled the Top End and we ran it on the shop ECM.
Using their basic tune i hit 485hp and 456tq!!
With a true good tune I may break 500hp!
In the mean time ive settled on using the Hooker Blackheart Exhaust and mount system.
The engine itself is a 6.0 that i needed to have bores .005 to clean up a few of the cylinders as well as linr hone and then clean up and balance the crank.
Ls6 Intake Manifold, ported 243 heads from Thompson Motorsports, And Engine Power Systems (EPS) cam is 226/230 duration, .604/.604 lift on a 113 LSA. When the shop was done with the short block I assembeled the Top End and we ran it on the shop ECM.
Using their basic tune i hit 485hp and 456tq!!
With a true good tune I may break 500hp!
#61
Re: Ozzy's LQ9 LS swap thread for his 84 Trans Am
On the engine dyno after assembly!
485HP and 456TQ! Over 400TQ at 3100 RPM!
400TQ at 3100 RPM made me giggle!
Hooker Blackheart!
Old 355 Dyno for comparison
Back in the garage, ready for some paint.
Harness from Pocket!
Supberb Craftsmanship!
1.7 Rocker with Straub bushing kit
Hooker Blackheart Transmission Crossmember
#62
COTM Editor
iTrader: (22)
Join Date: Mar 2001
Posts: 10,070
Likes: 0
Received 1,939 Likes
on
1,324 Posts
Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Re: Ozzy's LQ9 LS swap thread for his 84 Trans Am
Cool, glad you're having fun with the progress. That's what all these projects are all about.
#64
Senior Member
iTrader: (4)
Re: Ozzy's LQ9 LS swap thread for his 84 Trans Am
I think my next project with be an LS project. My buddy's girlfriend has an 87 T/A that's in near mint condition, but they hate the L03. He has a golden horseshoe shoved up his ***, so I'm sure he'll find a wrecked LS1 car that we can use for parts.
Grats on the motor! You're going to have a blast with it! Keep us posted on the progress. With any luck, maybe we can do a local-ish get together next summer.
Grats on the motor! You're going to have a blast with it! Keep us posted on the progress. With any luck, maybe we can do a local-ish get together next summer.
Thread
Thread Starter
Forum
Replies
Last Post
bad camaro RS
Aftermarket Product Review
7
02-22-2001 10:10 PM