Build Thread: '99 C2 996 LS1 Swap
#121
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Thread Starter
I remember coming across your thread on ls1tech, didn't want to get my hopes up (a lot of promising conversion threads fizzle out) but here it is almost ready to drive! I've always had dreams of doing this to an early 996. Yes, 180 degree headers included but my pipe dream had a short stroke 4.8 crank in an LS3 and 8000RPM capable valvetrain. Glad to see someone realizing it.
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george_west (06-30-2020)
#122
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Exhaust needed a quick revision for one of the tubes. Hopefully this is the last revision and we can bolt-on and go for myself and the 10 others. The latest revision is done and should be in my hands this week. I'm stoked! I have the Dr. Gas mufflers, U bends, etc. and will be cutting and bending the hangers soon. Stay tuned!
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JohnCA58 (08-12-2020)
#123
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Thread Starter
Headers are installed, I had some troubles with first start and tuning. I also had interference with the starter that comes with the Kit Car Chassis LS to Porsche 996 and 997 adapter. I would NOT recommend buying this adapter. He used a cheap knockoff Chinese starter and it's proprietary to his plate. A factory starter with the bell on the tip doesn't fit. This means the LS3 starter that I used for design doesn't fit the adapter. I had to buy a PowerMaster 9509 starter ($$$$) with an open face (gear exposed). If I were to do this again, I'd buy the adapter from Stuttgart Muscle. It is machined for the LS3 Camaro starter and that's what I'll buy in the future the next time the engine is out. Lesson learned.
I tacked together the rest of the exhaust setup with stainless MIG wire and then sent them out to be TIGed. I wish I had just bought a TIG, hah! I can TIG weld decently, I was hoping this was faster and easier. Nope. 2 weeks now, still not done. Always something delaying me.
In any case, you can see where everything sits and how it will look, minus the hangers. The hangers are here and 80% finished, just a few more bends and then mount to the mufflers. This setup fits the 996 C2 platform without needing any additional welding which means that any 996 or 997 C2 swap enthusiast can do this in their driveway. It even has the O2 bungs and all clamps. The headers clear the 996 and 997 engine bay and firewall as well as the crossmembers. I'm super stoked on the fitment and how well it came out. Clears the AC compressor and alternator with room to spare. I've started it up and ran it with the temporary setup but will wait to post videos until I have the Dr. Gas mufflers back and everything is bolted up. This project is ready for it's first drive as soon as the mufflers are here.
Pics attached, hopefully this is what y'all were waiting for! Excuse the mess!
I tacked together the rest of the exhaust setup with stainless MIG wire and then sent them out to be TIGed. I wish I had just bought a TIG, hah! I can TIG weld decently, I was hoping this was faster and easier. Nope. 2 weeks now, still not done. Always something delaying me.
In any case, you can see where everything sits and how it will look, minus the hangers. The hangers are here and 80% finished, just a few more bends and then mount to the mufflers. This setup fits the 996 C2 platform without needing any additional welding which means that any 996 or 997 C2 swap enthusiast can do this in their driveway. It even has the O2 bungs and all clamps. The headers clear the 996 and 997 engine bay and firewall as well as the crossmembers. I'm super stoked on the fitment and how well it came out. Clears the AC compressor and alternator with room to spare. I've started it up and ran it with the temporary setup but will wait to post videos until I have the Dr. Gas mufflers back and everything is bolted up. This project is ready for it's first drive as soon as the mufflers are here.
Pics attached, hopefully this is what y'all were waiting for! Excuse the mess!
Last edited by gtxracer; 09-14-2020 at 12:18 PM.
#125
Rennlist Member
#126
All the fond LS1 swap memories come flooding back. One of the easiest swaps (it seemed) to do, aftermarket and forum support is ENDLESS).
Almost brings a tear to the eye and blood from my knuckles...
Almost brings a tear to the eye and blood from my knuckles...
Last edited by JBSL; 09-14-2020 at 07:38 PM.
#129
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Thread Starter
Thank you everyone for the kind words!
Here's a video of the headers in a LS7 swapped 997 belonging to TJ Kenny:
Here's a video of the headers in a LS7 swapped 997 belonging to TJ Kenny:
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Mike Murphy (11-10-2020)
#130
Thank you everyone for the kind words!
Here's a video of the headers in a LS7 swapped 997 belonging to TJ Kenny:
https://www.youtube.com/watch?v=Zm-rGAuopSM
Here's a video of the headers in a LS7 swapped 997 belonging to TJ Kenny:
https://www.youtube.com/watch?v=Zm-rGAuopSM
Holy sheeeeet!
Ok I'm sold. Will these be available in a year when I need a set?
#131
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Thread Starter
#132
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Thread Starter
I finally drove my LS1 swapped 996 for the first time. My alternator isn't charging, I think it took a dive after the first few startups. After I replace that and do some finish work, it'll be ready for it's first long drive to start racking up 500 miles to break in the clutch. After that and an oil change, it will be time to really start tuning this little LS1 and finish up the intake ducting, sensor placement, dash light and gauge fine tuning, and start some body and interior work. Of course, I'll put up a ton of videos for the exhaust sounds
Last edited by gtxracer; 04-24-2021 at 11:49 PM.
The following 7 users liked this post by gtxracer:
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#135
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Thread Starter
Thank you AA717driver. I'm sure you're a great pilot and that's probably more important! haha
Couple more videos, second one is my car, the black 996. Enjoy!
Couple more videos, second one is my car, the black 996. Enjoy!