LS2 or LS6
TECH Regular
Joined: Feb 2003
Posts: 451
Likes: 0
From: Spring Hill, TN
LS2 is cheaper when purchased as a crate engine.
LS2 has a bigger bore so the valves are less shrouded which equals more power potential normally aspirated.
If needing a custom tune on a factory PCM, the aftermarket hasn't cracked the latest crank reluctor wheel. So you have to stick with the stock tune for now...if using an aftermarket engine control system I think support is there.
LS2 uses the drive by wire. I assume for your retrofit you'd have to convert to cable operated throttle. I don't know what's involved, but it's probably not a big deal.
I think the easiest swap is to get an LS1 salvage that includes computer, harness, transmission as well as all accessories and brackets. Then you can cam/head swap this to get over 400 hp. The total cost for the horsepower is better, plus you can custom tune that PCM.
LS2 has a bigger bore so the valves are less shrouded which equals more power potential normally aspirated.
If needing a custom tune on a factory PCM, the aftermarket hasn't cracked the latest crank reluctor wheel. So you have to stick with the stock tune for now...if using an aftermarket engine control system I think support is there.
LS2 uses the drive by wire. I assume for your retrofit you'd have to convert to cable operated throttle. I don't know what's involved, but it's probably not a big deal.
I think the easiest swap is to get an LS1 salvage that includes computer, harness, transmission as well as all accessories and brackets. Then you can cam/head swap this to get over 400 hp. The total cost for the horsepower is better, plus you can custom tune that PCM.
Originally Posted by jyeager
LS2 is cheaper when purchased as a crate engine.
LS2 uses the drive by wire. I assume for your retrofit you'd have to convert to cable operated throttle. I don't know what's involved, but it's probably not a big deal.
LS2 uses the drive by wire. I assume for your retrofit you'd have to convert to cable operated throttle. I don't know what's involved, but it's probably not a big deal.
Pat
TECH Regular
Joined: Feb 2003
Posts: 451
Likes: 0
From: Spring Hill, TN
Right, but retrofitting the pedal might not be easy? I suppose that's not really an issue with someone who's fabricating a custom engine installation though.
Doesn't this require the OEM computer? What if you were using a BS3, Gen VII, or FAST system as your computer controller? Don't know if any of those handle the drive by wire.
Otherwise, I agree with all of your assessment.
Doesn't this require the OEM computer? What if you were using a BS3, Gen VII, or FAST system as your computer controller? Don't know if any of those handle the drive by wire.
Otherwise, I agree with all of your assessment.
