2011 Corvette Ls3...in a 71 Firebird-questions...
Thread Starter
Joined: Apr 2007
Posts: 330
Likes: 1
From: Chicago, Illinois (far south)
2011 Corvette Ls3...in a 71 Firebird-questions... I'd like to know if he 2011 Corvette Ls3 that was originally backed by an auto trans would have displacement on demand, active fuel management, etc. I am interested in swapping this engine (need to find a trans) into my 71 Firebird. It would come with all accessories, harness and PCM. Not sure if the accessory drive would work in my car. I'd like to keep the AC system functional. I've done a search and haven't been able to come up with much on the engine or this particular type of swap. Any help would be greatly appreciated.
Thread Starter
Joined: Apr 2007
Posts: 330
Likes: 1
From: Chicago, Illinois (far south)
Thanks. It appears that the AC compressor mounted down low on the passenger side might be in issue with the stock subframe. Does anyone know for sure? I thought I read somewhere that a bracket from Kwik performance might help but can't find the article anywhere. I Plan on getting the stock harness reworked and PCM recalibrated. Are there any other issues anyone knows of that I might run into with this engine in an early 2nd gen F Body?
Thanks. It appears that the AC compressor mounted down low on the passenger side might be in issue with the stock subframe. Does anyone know for sure? I thought I read somewhere that a bracket from Kwik performance might help but can't find the article anywhere. I Plan on getting the stock harness reworked and PCM recalibrated. Are there any other issues anyone knows of that I might run into with this engine in an early 2nd gen F Body?
I would also go with the new Holley F-body mount kit as it was designed to to mount the engine as low as possible, which is critical for proper driveline angles. Holley also offers some alternative AC mounting solutions.
Andrew
Thread Starter
Joined: Apr 2007
Posts: 330
Likes: 1
From: Chicago, Illinois (far south)
Thanks for the info. It appears that Kwik Performance has an AC bracket that mounts the compressor up higher that might solve that issue. I also found A kit from brphotrods that included engine mounts and a crossmember. It's a bit pricey but seems to be well liked from what I've read.
https://holley.com/products/ls_power...parts/12512HKR
Here is the T56 cross member:
https://holley.com/products/ls_power...parts/12616HKR
There is also one for automatics.
Andrew
Trending Topics
Thread Starter
Joined: Apr 2007
Posts: 330
Likes: 1
From: Chicago, Illinois (far south)
Andrew, thank you for all your help!
I read on Holley's site that I will need the 2292 clam shells to use the Holley engine mounts. Since my sub frame was born Pontiac, wouldn't I have to drill new holes in order for the Holley mounts and the 2292 clam shells to allow the engine to be secured to the sub frame?
I read on Holley's site that I will need the 2292 clam shells to use the Holley engine mounts. Since my sub frame was born Pontiac, wouldn't I have to drill new holes in order for the Holley mounts and the 2292 clam shells to allow the engine to be secured to the sub frame?
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Andrew, thank you for all your help!
I read on Holley's site that I will need the 2292 clam shells to use the Holley engine mounts. Since my sub frame was born Pontiac, wouldn't I have to drill new holes in order for the Holley mounts and the 2292 clam shells to allow the engine to be secured to the sub frame?
I read on Holley's site that I will need the 2292 clam shells to use the Holley engine mounts. Since my sub frame was born Pontiac, wouldn't I have to drill new holes in order for the Holley mounts and the 2292 clam shells to allow the engine to be secured to the sub frame?
Andrew