lsx in a XLR
Thread Starter
Teching In
Joined: Aug 2007
Posts: 26
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From: mi
lsx in a XLR I am trying to decide on a project XLR. I have a forged 416" and I am wondering how difficult it would be to put it in the XLR. I know that the xlr is based on a c6 vette. I am wondering if the electronics would work ie. the engine pcm?
The engine will need its own pcm, cant use the Cadi pcm for eng functions. You may be able to keep Cadi pcm for dash gauges. Contact StreetNPerformance, their web address is hotrodlane.cc, those guys can walk you through the technical electronic stuff.
FormerVendor
Joined: Mar 2014
Posts: 19
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From: Indiana
Xlr The XLR and the Corvette share a lot of parts. The are basically the same chassis and were built on the same line/at the same plant. It should be fairly easy to swap the parts between the two and make a LSx engine fit.
What year XLR? I believe the 2004 XLR's are like C5 Corvettes while the 2005-2009 share more C6 Corvette parts (although I understand it is more of a C5 carry over chassis wise).
For example the 2009 XLR is an E67 ECM so that is the same ECM as a 2009 ZR1 Corvette so with the correct calibration you likely would not need to change ECMs. Make sure you have a 58x LSx engine and not a 24x engine.
Probably easier to get a new harness made but you might be able to modify the XLR harness (or at least send it to a harness shop to use as a starting point for the trunk lengths, connector points etc.).
What year XLR? I believe the 2004 XLR's are like C5 Corvettes while the 2005-2009 share more C6 Corvette parts (although I understand it is more of a C5 carry over chassis wise).
For example the 2009 XLR is an E67 ECM so that is the same ECM as a 2009 ZR1 Corvette so with the correct calibration you likely would not need to change ECMs. Make sure you have a 58x LSx engine and not a 24x engine.
Probably easier to get a new harness made but you might be able to modify the XLR harness (or at least send it to a harness shop to use as a starting point for the trunk lengths, connector points etc.).
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TECH Addict
Joined: Jul 2013
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From: Portland, Oregon
It's not that you can't use a v6 xlr, it's just the ecm swap/compatibility may be a little more involved than with the '09 xlr-v.
At the end of the day, there's always the Holley dominator. As for everything else, it's just metal, cut it up and make it fit.
At the end of the day, there's always the Holley dominator. As for everything else, it's just metal, cut it up and make it fit.
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Teching In
Joined: Nov 2015
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I put an ls3 in an xlrv It's not that hard I did it
07 xlr ls3 heartbeat supercharger
I can't figure out how to post videos
But it's on YouTube
Search ls3 xlr it's a black one
on a lift
Teching In
Joined: Nov 2015
Posts: 29
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Teching In
Joined: Nov 2015
Posts: 29
Likes: 0
Yes were in palms springs ca usa
Yes every thING works gauges top bcm start button every thhung works like it came that way from the factory.
No is not a stick it a 6l80e 6spd auto...
Teching In
Joined: Nov 2015
Posts: 29
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But the Trans is different for the Cadillac and it's has a Northstar instead of an ls and no they don't just swap over the Northstar drive is over an inch longer then the vette