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Zero to 60 Run--4.6 Cadillac Northstar V8 vs. 4.9 OHV V8
Zero to 60 comparison between my new 2001 Cadillac Seville SLS with a 4.6 Northstar V8 and the 1991 Cadillac Sedan de Ville with a 4.9 that I've owned since 2005. The Northstar in the Seville is faster, especially at the top end, but the good old 4.9 in the DeVille holds its own--especially for an 18-year-old car with 257,000 miles on it. Judging from the time codes in the video, the Seville did it in 7 second flat; the DeVille is just over 9 seconds. Interestingly, both cars shift from 1st to 2nd at 45 MPH, and both hold 2nd gear all the way up to ~80 MPH. Without a tach in the DeVille, I have no idea how high it was revving, but it probably went close to redline. The noise you hear besides the engine revving in the Seville is raindrops on the windshield. I had the camera on a tripod held down between my legs in the Seville; in the DeVille, it's just handheld, so it's shakier. Both runs done on Stapleton Rd. just south of Monmouth/Independence, Oregon

1997 Cadillac Deville Flowmaster 40 Mufflers
Another update

Cadillac with 40 series Flowmaster
My Lac with Super 40 Flowmasters

1996 cadillac deville northstar with flowmaster very clean
I'm selling my 1996 cadillac deville just a walk around of the car and the flowmaster of course I had to show that off it's got alot of power with the northstar motor plus the duel flowmaster pipes

99 eldorado northstar slp loudmouth 1 exhaust
cold startup

caddy flow masters
northstar sounds real good

Cadillac Seville With Flowmaster Super 44 Exhaust
Before and after 2004 Cadillac Seville 4.6L 275 HP V8 with dual Flowmaster Super 44 mufflers

Death of a Northstar Caddy
Sodium Silicate for Clunker Caddy

CADILLAC DEVILLE WITH GLASSPACKS
SICK CADI IN STOCKTON,CA (209)

Badass Northstar
1999 Cadillac with a Northstar V8 with true dual Exhaust sporting nothing but a pair of mufflers.

Cadillac STS Turbo - 650 HP - QuickRev.com
This is a brief video of Mark's turbo Cadillac built by QuickRev! Mark ran a new record time of 11.82 @ 119.41 MPH. Congrats Mark! ***Click (more info) for modification list*** 99 STS Cadillac 4.6L 32 Valve double overhead cam North Star 650-700 Wheel HP @ 21 lbs of Boost turbo mods: -70 mm single turbo -Raptor blow off valve -turbo Smart waste gate -Custom Intercooler -turbo oil scavenge pump -3 bar map sensor -Electric Exhaust cutout -Custom made Burns stainless steel piping -Corsa cat back Exhaust Chassis and electronic upgrades: -PCS standalone transmission controller -Holley 950 Commander Standalone engine management system -Greddy Profec B custom dash mounted electronic Boost controller -Custom paddle shifter on steering wheel -Power Stop slotted rotors w/ hawk pads -Walbro 255 fuel pump -Transmission cooler Motor upgrades: -Darten Sleeved block -Arias forged pistons -Eagle forged rods -ARP head studs -Cometic head gaskets -Ported heads, throttle body and intake -Mod motor fuel rails -60 lb injectors -Braided Stainless Steel Teflon fuel lines -Aeromotive fuel pressure regulator -Upgraded valve springs -stock 300hp cams

Cadillac Deville With Flowmaster 40s
just a short video of my car after and new Flowmaster 40's

What a Northstar V8 Really Sounds Like
My '95 Aurora 4.0 with no Exhaust from the collector back :-)

Starter removal and replacement on a Northstar engine
How to Install a starter on a Northstar enginehttp://www.fixya.com/cars/t11078345-security_light_1999_cadillac_deville

Northstar Engine Drilling and Tapping (Stud kit) - Head Gasket/Bolts Repair
Process of drilling and tapping the block of Cadillac Northstar engine. 2000 year, using Suregrip SG102 Stud kit from http://www.northstarperformance.com/