So I’m planning on doing a LS swap on my 1998 BMW 740iL out of these I have the option of doing a 4.8, 5.3,5.7, and 6.0 I want to have a $12,500 budget does anyone recommend a certain motor for best power for the dollar also need a Motor & Transmission combo that’s affordable but with good power. What do you guys recommend?
Best power for dollar these days is turbo if you want >500 wheel. not necessary to splurge on a 6.0 if you’re turbocharging anyway. Also figure out your goals first (400hp? 650? 800?) then choose the parts that achieve those goals. For example, you don’t need 800hp worth of fuel pump, lines and injectors if you only want 500hp.
There’s a ton of info out there and on these forums that can get you to any of those marks. $12k is plenty of money if you’re doing the work yourself and you are careful.
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Just an fyi..E39 V8 mounts work on a E38..Got mine from Madison here on the board.
What’s your HP goals? All motor or forced induction? I have the LQ9 in mine with 4l80e. I know a lot of the lq9’s have gen 4 bottom end which is good for 800+. With the iron block they are great for turbo applications. Keep in mind the rest of your driveline, shaft, rear diff, axels, suspension, etc. Honestly knowing what I have in mine $12k might be ambitious if your gonna try and build big hp with forced induction.
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