Cuttysteve

Hello new to this forum name is Steve from California. I have a 1972 Cutlass S I致e had for a while now, I知 looking to do and Ls swap. I currently have a 6.0 Lq9 motor with the a Texas speed bfd cam, springs/ rods and a 4l80 trans behind it. I also have the Holley terminator x max to go with that. I知 hoping to gather some info on here to help with this swap.

Fun71

I got nothing to help ya, but I'm wondering what rear gear ratio are you gonna use?

Cuttysteve

I知 running 390 gears

Fun71

Oh yeah. I'm likin it.

Olds64

Are the 3.90 gears close to what came in the Chevy truck that had the LQ9?

garys 68&72

Currently have a 5.3/T10 4 speed in my 72 daily driver. Also have done an LQ9 in a 68 corvette. Build thread here:
https://classicoldsmobile.com/forums...ii-swap-29116/
Also a lot of info at the LS1tech conversions forum. Lots of A body swaps there.

Cuttysteve

@Olds64 the motor is off a 2004 Escalade, I want to say gear ratio is between 3.06 and 3.42

Cuttysteve

@garys 68&72 nice set up, I値l definitely check that out thanks!

Olds64

You'll probably have to update the LQ9 ECM with axle ratio info. Are you going to use HP Tuners?

Cuttysteve

I知 using the Holley terminator x max

Olds64

Let us know how she runs when you get it setup!