How much horsepower does a 32 valve Northstar engine have?

Introduced in 1993 in the Cadillac Allante, Eldorado and Seville STS, the 4.6L 32-valve dual overhead cam all-aluminum V8 engine was a quantum leap forward for U.S. automakers. Initially rated at 295 horsepower, the Northstar V8 has been ranked as one of the “10 Best Engines in North America” by Ward’s Auto World.

Is the Northstar engine really that bad?

While the Northstar engine was actually designed to be difficult to overheat, design flaws actually made it easy to overheat. As we’ll discuss further on, these engines burn a lot of oil which creates a lot of carbon buildup. This carbon buildup then causes increased engine temps which can blow the gasket too.

How many miles will a Cadillac Northstar engine last?

The Northstar engine is a long-lasting and reliable engine. A properly maintained one can easily last up to 100,000 miles before you need another tuneup related to oil leakage or blown head gaskets. Many people have even seen these engines exceed 200K without any major problems.

What year Cadillac has head gasket problems?

The popular 2000 and 2002 Cadillac DeVilles are prime casualties, with the engine tending to overheat due to a leaking head gasket.

What year did Cadillac fix the Northstar?

2011
GM ceased production of the Northstar in 2011. The final cars to receive it, the Cadillac DTS, Buick Lucerne, and Cadillac STS, rolled off the line in 2011.

Are there any remanufactured Cadillac 4.6 Northstar engines?

Promar Precision Engines have been pioneers in remanufacturing the 4.6 DOHC 32 Valve Cadillac Northstar Engines. We were one of the first remanufactures in the country to offer remanufactured 4.6 Northstar engines to the public, even before oversize pistons were available.

How much oil is in a GM Northstar 4.6 V8?

Note: When changing oil on a 4.6L Northstar V8, keep in mind that this engine holds 7.5 quarts instead of the more common 4 or 5 quarts. Service Issues. While the Northstar V8 is well engineered, like other engines they’ve had some problems. According to various sources, head gasket failures are not uncommon. Nor is oil burning or oil leaks.

How many horsepower does a Northstar engine have?

Capable of producing 300 hp (224 kW) out of its 4.6 L; 278.6 cu in (4,565 cc) displacement, the Northstar featured a cast aluminum 90° V8 block with 4 in (101.6 mm) bore spacing split into unitary upper and lower halves. The lower crankcase assembly supported the crankshaft without conventional main bearing caps.

What was the compression ratio on the L37 Northstar?

The L37 code had been used on all high-output transverse Northstars, even as the exact engine specifications evolved. The compression ratio for the L37 is 10.3:1 for engines built prior to 2000, and 10.0:1 afterwards.