i have a 94 concours with northstar 270 hp variety. is it possible to uprate it to the 275 or even 300 hp version thru some kind of parts exchange?

The difference between the 270/275 and the 300 is the intake cams (and PCM). As for 270 to 275, you couldn't tell the difference so why bother. The simple answer to your question is no.

thanx again ranger. maybe an performance exhaust is my answer

It has been said that there are some performance gains to be achieved by that.

The difference between the 270/275 and the 300 is the intake cams (and PCM). As for 270 to 275, you couldn't tell the difference so why bother. The simple answer to your question is no.

In 95 the increase from 270 to 275(vin Y) & 295 to 300 (vin 9) was in the change from the 2 piece
metal intake to the one piece "plastic" intake used. Also there are no
mouse holes or phenolic plates as they changed to the external EGR system & valve.

plan wrong man
if you have a Concourse you already have the high HP engine (295)

my 95 concours is the 275 version

He's right Jason, perhaps you should Goggle it next time.:thepan:


The '95 Concours offers a bevy of luxury and performance features as standard equipment - most notably
, the aforementioned Northstar engine. In the Eldorado Touring Coupe and Seville Touring Sedan (STS),
the Northstar is powered by 300 horses. In the Concours, however, the 4.6-liter DOHC V8 is a bit
tamer - yielding 275 hp (five more than in '94) and 300 lb.-ft.


Here's a link to the article.

http://www.nctd.com/review-intro.cfm?ReviewID=74

Concourse is the high HP version
the Concourse model always carried the Vin 9 Northstar
I know this to be a fact on 96+
94-95 id assume to be the same else why pay more for different trim, extended side skirts and the rear vanity mirrors.

as for net articles i dont trust them for crap its as bad as wikepdia some times...

ok i just read up
my apologies apparently when the n* went standard in the Deville in 96 the base Deville was given the 275 hp and the concourse bumped up to 300

in answer to your ? though being yours is a 94 its a cake walk, swap the cams and have a chip builder such as speed chips build a custom chip for it to run the 275 hp with the 300 hp wilder cams

Concours. It means "Tour" or "Parade" approximately. It's not Concourse.

thanx for the ideas. as far as the hp discussion the way i understand it the northstar was an option on the 94/95 concours, as i've seen a 94 concours with the 4.9. which was also standard engine for the base deville until 96.i suppose to keep the deville under the eldos and sevilles they rated the concours at 270 hp in 94. how much jack will i look to spend for cam and custom chip?