GM and Cadillac Engines Year, Model, Power and Torque

1.Year



2.Model

3.Power

4.Torque

1993

Cadillac Allanté

295 hp (220 kW) @ 5600 rpm

290 lb·ft (393 N·m) @ 4400 rpm

1993-1994

Cadillac Eldorado ETC

295 hp (220 kW) @ 5600 rpm

290 lb·ft (393 N·m) @ 4400 rpm

1995–2002

Cadillac Eldorado ETC

300 hp (224 kW) @ 6000 rpm

295 lb·ft (400 N·m) @ 4400 rpm

1993

Cadillac Seville STS

295 hp (220 kW) @ 5600 rpm

290 lb·ft (393 N·m) @ 4400 rpm

1994–2004

Cadillac Seville STS

300 hp (224 kW) @ 6000 rpm

295 lb·ft (400 N·m) @ 4400 rpm

1996–2004

Cadillac DeVille Concours/DTS

300 hp (224 kW) @ 6000 rpm

295 lb·ft (400 N·m) @ 4400 rpm

2005

Cadillac DeVille DTS

290 hp (216 kW) @ 5600 rpm

285 lb·ft (386 N·m) @ 4400 rpm

2006–present

Cadillac DTS Performance

292 hp (218 kW) @ 6300 rpm

288 lb·ft (390 N·m) @ 4500 rpm

2008-present

Buick Lucerne Super

292 hp (218 kW) @ 6300 rpm

288 lb·ft (390 N·m) @ 4500 rp

LD8




The LD8 (VIN "Y") is a transverse V8 for front-wheel drive cars. Introduced in 1994, it is designed to provide more torque than the high-revving L37. The LD8 code had been used on all torque-tuned transverse Northstars, even as the exact engine specifications evolved. Compression ratio is 10:1.

The 1998 revision is quieter than previous Northstar engines, due to hydraulic engine mounts, and performs better due to a tuned intake system.

Most LD8 Northstars are rated at 275 hp (205 kW) and 300 lb·ft (407 N·m).

Year

Model

Power

Torque

1994

Cadillac Eldorado

270 hp (201 kW)

300 lb·ft (407 N·m)

1995–2001

Cadillac Eldorado

275 hp (205 kW) @ 5750 rpm

300 lb·ft (407 N·m)

2002

Cadillac Eldorado

275 hp (205 kW) @ 5600 rpm

300 lb·ft (407 N·m) @ 4000 rpm

1994

Cadillac Seville SLS

270 hp (201 kW)

300 lb·ft (407 N·m)

1995–2001

Cadillac Seville SLS

275 hp (205 kW)

300 lb·ft (407 N·m)

2002–2004

Cadillac Seville SLS

275 hp (205 kW)

300 lb·ft (407 N·m)

1994

Cadillac DeVille Concours

270 hp (201 kW)

300 lb·ft (407 N·m)

1995

Cadillac DeVille Concours

275 hp (205 kW) @ 5750 rpm

300 lb·ft (407 N·m)

1996–2001

Cadillac DeVille

275 hp (205 kW) @ 5750 rpm

300 lb·ft (407 N·m) @ 4000 rpm

2002–2005

Cadillac DeVille

275 hp (205 kW) @ 5600 rpm

300 lb·ft (407 N·m) @ 4000 rpm

2006–present

Cadillac DTS

275 hp (205 kW) @ 6000 rpm

295 lb·ft (400 N·m) @ 4400 rpm

2004–2005

Pontiac Bonneville GXP

275 hp (205 kW) @ 5600 rpm

300 lb·ft (407 N·m) @ 4000 rpm

2006–2007

Buick Lucerne CXS

275 hp (205 kW) @ 6000 rpm

295 lb·ft (400 N·m) @ 4400 r

LH2

The Northstar was designed originally for transverse front-wheel drive applications. It was modified substantially in 2004 for longitudinal rear- and all-wheel drive use in the SRX and XLR, as well as receiving continuously variable valve timing on both intake and exhaust sides. The RWD (LH2) Northstar produces 320 hp (239 kW) and 315 lb·ft (427 N·m). An increased compression ratio of 10.5:1 enables most of the increase in power from the L37 and LD8 Northstars.

Year

Model

Power

Torque

2004–2009

Cadillac SRX

320 hp (239 kW) @ 6400 rpm

315 lb·ft (427 N·m) @ 4400 rpm

2004–2009

Cadillac XLR

320 hp (239 kW) @ 6400 rpm

310 lb·ft (420 N·m) @ 4400 rpm

2004–present

Cadillac STS

320 hp (239 kW) @ 6400 rpm

315 lb·ft (427 N·m) @ 4400 rp

Supercharged LC3

A 4.4 L (266 cu in) supercharged Northstar is used in the 2006 Cadillac STS-V and Cadillac XLR-V. The bore was reduced for increased strength and improved head gasket sealing. Variable valve timing is used on both the intake and exhaust sides. The STS-V engine produces 469 hp (350 kW) at 6400 rpm and 439 lb·ft (595 N·m) at 3900 rpm with 9:1 compression and the XLR-V engine produces 443 hp (330 kW) at 6400 rpm and 414 lb·ft (561 N·m) at 3900 rpm.

Year

Model

Power

Torque

2006–2009

Cadillac STS-V

469 hp (350 kW) @ 6400 rpm

439 lb·ft (595 N·m) @ 3900 rpm

2006–2009

Cadillac XLR-V

443 hp (330 kW) @ 6400 rpm

414 lb·ft (561 N·m) @ 3

L47





A L47 inside an Aurora's engine bay

The L47 Aurora engine was a special V8 designed for the Oldsmobile Aurora, based on the Northstar engine. It is a DOHC 3,995 cc (3.995 L; 243.8 cu in) V8 which produced 250 horsepower (186 kW) and 260 ft·lb (353 N·m) of torque. The bore was 87 mm (3.4 in) and the stroke was 84 mm (3.3 in). The L47 had a 10.3:1 compression ratio and used premium fuel.

An early version or prototype of this engine was used in the 2nd generation Oldsmobile Aerotech.

Although most of the Northstar's features, including the coolant loss system, remained intact, the decreased bore increased weight unacceptably. To reduce it, Oldsmobile used a one-piece glass-filled thermoplastic intake manifold and simplified AC Rochester sequential fuel injection. A new die-cast structural aluminum oil pan incorporated baffling to reduce oil starvation in hard driving. A starter interlock prevented the starter from engaging if the quiet L47 was already running.

A highly modified 650 hp (485 kW) version of this engine was used by General Motors racing division initially for Indy Racing League competition starting in 1995, then was later used in the Cadillac Northstar LMP program in 2000. Both engines retained the 4.0 L capacity, but the Northstar LMP version was twin-turbocharged.

The Aurora was also used in the Shelby Series 1 car.