1969 Firebird LS Swap - 2013 Camaro ZL1 LSA 6L90 Swap

This 1969 Pontiac Firebird came to us as a bare shell and a bucket of bolts. We pulled a 6.2 LSA engine and 6L90e transmission from a 2013 Camaro ZL1 and installed it with a mount kit from Holley and Headers from Hooker. The engine was upgraded with a smaller pulley and custom intake. Exhaust flows through a 3" Pypes Performance exhaust with Race Pro mufflers (surprisingly quiet on this car). Car is sitting on US Mag Rambler 20x9.5 / 18x.8 wheels.
What do you think? Drop us a message below on your thoughts or if you have a questions on the swap!

[@TheLsSwapGuru]

Looks amazing under there keep up the great work champ

[@ckerrkerr2939]

I love everything exept the tire/wheel combination

[@urielvallin8077]

How to deal with the harness in the connection with dashboard speedometer and transmission

[@ungomezillo]

Great work! good info! I did not see your videos before, so I know I am in for some headaches because of the parts I choose! jajaja. I will be swapping a 2015 camaro L99/6L80 in to my 69 camaro.(cruiser obviously) I do have some questions. 6L80 transmission mount(stock rubber mount) on modify cross member?

[@Zero2SixtyPerformance]

Correct

[@JD-so1zv]

I’ve been thinking about also doing a LSA and 6l90e for my s10, currently have a 6.0l tbss Intake and 4l60e which I think my 4l60e is already slippin

[@Zero2SixtyPerformance]

Nice! I personally would do a 4L80 over the 6 speed but that’s just me.

[@72vert55]

What are those coil covers that you used? Looks great!

[@Zero2SixtyPerformance]

They are actual valve covers by Proform. We relocated the coils.

[@wright0369]

Do you have a link for the kit?? I’m thinking it may be the same for my 69 Camaro. Also, are you utilizing the factory harness or Holley?

[@Zero2SixtyPerformance]

I can send you a link for everything. Send me an email - [e-mail]. We used the factory pcm on this one because of the 6L90

[@SidewaysKMP]

Do those headers hang down below the frame or oil pan, it's hard to tell in the video?

[@Zero2SixtyPerformance]

They do not. The exhaust is lower under the floor where the mufflers are than the headers. There is probably 1.5" from the top of the collector to the floor.

[@WickPerformance]

Did the tunnel require modifications?

[@Zero2SixtyPerformance]

Nope!