Lm7 -> Lq4 Engine Swap

[mcmillanbs]

Forum,

 

I have a 2003 GMC Sierra 1500 (Reg/Short Bed/2WD). I love this truck and it's a daily driver. I've kept the modification to a minimum over the years, cat-back (thrustmaster 40), chip and K&N filters. I'm extremely happy with the performance and mileage (20+ MPG).

 

I almost traded in last year after an accident (cosmetic only), but after seeing it all shining with it's bright red paint, I didn't. Thank goodness.

 

However, it just passed 100k. I've always treated it like a toy, but now it's time to really make it a real toy.

 

I've been looking at an engine swap for some time now and had thought of swapping in an LS1 with a Richmond 6-speed tranny, but I just recently seen where a LQ4 block is identical to the LM7. This seems to be a better option with minimal changes to the truck itself. I can work in the Richmond at a later time.

 

My question is who has actually done this swap and what are the pitfalls?

 

Thanks in advanced for any input.

 

==Mac

[droopy]

A WHOLE buch of people have swapped in 6.0's and even the 4l80e.Look on www.performancetrucks.net

[svensk]

lq4's can be had very cheap and they make easy power.

[Schmids5.3l]

Everything is completely swappable, pull out the LM7 and drop in the 6.0. Literally. The fuel set up is the only thing that might need some work since your 03 is probably a return setup.