sts to xlr conversion 4.6L 320 hp

XLR brings high performance into the luxury arena with the 320-horsepower 4.6L Northstar V8 VVT. At 0-60 XLR runs 5.7 seconds - a full second faster than Mercedes SL500, and XLR reaches 155mph quickly thereafter. The variable valve timing maintains fuel efficiency and polymer-coated pistons cut vibrations.

sick conversion going on in massachusetts im taking 98 seville sts
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xlr computer manifold maf ignition various wiring harnesses and complete instument panel and dash it took me a month to make sure the tape measure didnt lie and that it could be pulled off i will start the project oct 1st ill be posting pics and the tech info if i suceed all northstars have the possibility of being 320hp 420ftlbs w the help of a good trans upgrade


p.s ill keep u posted

How do you plan to do this when the XLR engine is RWD and the STS engine is FWD? They aren't even the same engine!

Caddydaddy is right in that the Northstar V8 in the XLR isn't the same as the STS. Cadillac does make a new rwd STS.