I want to swap out the engine in my 2003 monte carlo ss to a LS7 V8. How much trouble will it be?

35

Asked by Apr 09, 2009 at 09:16 PM about the 2003 Chevrolet Monte Carlo SS

Question type: Car Customization

10 Answers

55

DONT BOTHER FWD

1 out of 1 people think this is helpful.
85

If you have the motor keep it for something else. it would be pretty silly to hook that much power to fwd. If you dont have the motor... save the money and put it towards the engine you have. those things are built like a shit house and you can get plenty of power without having to swap the engine.

2 out of 2 people think this is helpful.
55

Not only that...the engine is about 8 or more grand and the tranny and the this an that...go by rwd monte...easier to work with...or by soemthing like mine...LS4 BABY!

1 out of 1 people think this is helpful.
25

You can always buy a 04 or newer l32 top swap. If you have an L36 you'll be good since the L36 compression is the highest of all the 3800L. You might want to think about some headers, a downpipe with u-bend delete, a 2.5 cat back system, a 4" CAI, and a heavy duty tranny with a good shift kit. You can try Ed Morad, an Ohio based salvage yard which sells the kits. That's where I got mine. For a 05 L32 top swap kit, including the fuel rails and injectors/injector wiring, and the gasket needed I paid around $1200.

55

why waste the money on v6 GET MONTE WITH V8....HAS FROM FREAKIN BALLS!

7,165

not a good idea with FWD. you will need to redo that entire front end if you do the swap. do you have any idea how much the tranny, engine, and front end is going to cost?!?! not worth it

25

I'd get a v-8 MC but their performance isn't the greatest and, for the same money, I could get a mustang with a better performance package. Besides, the gen 7 MC's aren't as nice looking as the gen 6.

1 out of 1 people think this is helpful.
20

Can you put 2006-ss 5.3L, and a 2003 monte carlo ss 3.8L

2 out of 2 people think this is helpful.
10

so, back to the question,, LS into a 2003, no one knows how?

1 out of 1 people think this is helpful.

I want to change out a 3.4 L to the 3.8l with the super charger on my 2003 gen 6 Monte Carlo. Do I need to change the trans and wiring harness to?

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