I'd like to know once and for all what the correct factory horse power output of a '98 Diablo SV is. I'm quite certain that the '99 SV's put out 530hp. But I've read plenty of places where it states that the 530hp upgraded engine was first found in the '98 SV. One of those places being my factory owners manual spec page. But I also often read on many websites that the output of the '98 SV is only 510hp. Anyone know the correct answer for sure??

530 hp i believe

According to lambocars.com it says that 1999 SV put out 530, but for 1995-1998 the cars put out 510…

Check it out:

Lamborghini cars, the enthusiast site

Anyone else know for sure?

Factory owners manual spec page sounds like a good source!

It's 530, at least 540 with after market exahust, cats removed.

oh i have more mods than that on my sv...lool i wish we had a dyno were i was, so i can get the right numbers... but ive beet every lambo there is in my part of the world..

98 and 99 use same motor, same power, 530HP

98 was first use for Variable Valve Timing (VVT) motor