Is the northstar v8 a good engine

It’s a performance engine, not an everyday truck V8. Therefore, it requires performance engine care. Religious oil changes, no idling whatsoever, all fluids changed on time. At least 89 gas, etc. Anyways, once you realize the 5.7L Hemi is a sports performance engine fitting into a truck, and once you start caring for it as such, there’s ...

Is the northstar v8 a good engine. #3 · Feb 12, 2016. PROS....decent hp to weight ratio.....decent gas mileage when tuned up and running well. Torque output is good, but I feel it could have used some more. …

Used 1995 Cadillac DeVille pricing starts at $2,348 for the DeVille Sedan 4D, which had a starting MSRP of $36,320 when new. The range-topping 1995 DeVille Concours Sedan 4D starts at $2,350 today ...

Cadillac Twin-Turbo Blackwing V8. The most powerful engine in Cadillac history also enjoyed the shortest time on the market. The twin-turbocharged Blackwing V8 was a clean-sheet design that squeezed 131 hp per liter from its 4.2L design thanks to 20 pounds of boost. With total output of 550 hp and 640 lb-ft of torque (when installed in the CT6 ...Get an overview about all ENGINE-NO-1-ETF ETFs – price, performance, expenses, news, investment volume and more. Indices Commodities Currencies StocksThe 5.7-liter Hemi engine has long been one of the best V8 engines, and for good reasons. It has proven to be a stout and reliable motor for over two decades. ... The Northstar V8 replaced the Cadillac High Technology V8 and was one of the most advanced engines of its era. However, the engine's technical advancements made the Northstar …Some 2004 Pontiac Bonneville GXP (Northstar V8)s have enjoyed a good reputation for being durable, dependable vehicles. Few have experienced significant engine problems. However, some engines have suffered from excessive oil consumption and a damaged catalyst due to oil leaks that could lead to engine failure.Find CADILLAC Cadillac Northstar V8 Intake Manifold Gaskets and get Free Shipping on Orders Over $109 at Summit Racing! Save up to 10% on the Powersports Parts you Need! Vehicle/Engine Search Vehicle/Engine Search Make/Model Search21 Jul 2021 ... Order the parts here: https://amzn.to/3kDPLlQ Tell me you love me by joining my: https://www.patreon.com/videobob Wanna buy me a present?Published by Dustin Babich on 29 May 2023. A 4.6l v8 dohc engine from general motors can replace a northstar engine. This is a common solution for those who need to replace their northstar engine. The northstar engine was a popular choice for luxury cars such as cadillacs in the 1990s and early 2000s. However, over time, these …You would start with the #1 cylinder at TDC, crankshaft sprocket timing mark at 12:00, intermediate sprocket timing mark at 6:00 so the both timing marks match. Then you are left with the cam timing marks which all need to be 90 degrees from the surface of the head. Some Northstars have special exhaust cam sprocket at bank 1 due to CMP.

Which Northstar engine years to avoid? Northstar is a trademark Cadillac car, and the engine is a 4.7-liter V8. It has 32 valve configurations, and its 4.0-liter versions are available on different Cadillac variants. General Motors produced these high-performance V8 from 1993 to 2011. Dealer will be at 6,000 plus. The SC 3800 is a much better choice if dependably is a factor. Close in performance to the Northstar, great fuel economy, very easy to service, will easily go 300,000 miles running used fryer oil, yes that unfinicky and resilient of an engine. It was an absolute tragedy GM quit using the 3800.The 4.6-liter 4-valve V8 engine featured on Ward's 10 Best Engines List for 1996 and 1997 years, while the 3-valve version was on the list for 2005-2008 and received a variety of accolades. Using this engine as a base, Ford developed a bigger 5.4-liter engine series, which also gained good success in sales. The production of the 4.6L Modular ...178 posts · Joined 2013. #1 · Aug 10, 2021. For a very long time I have been interested in the old northstar v8. I think the engine has a lot of potential and would be great for the road racing I do. Years ago, there was a company called Cadillac Hotrod Fabricators that had all kinds of things for this engine, but they are long gone.Northstar engines usually run well, but most mechanical problems require many hours of expensive work. That is a reason I don't recommend most Cadillac cars. ... HT-4100 is not a good engine the v8 368 6litre known as the v8-6-4 is not a bad engine its the same design as the 425 7.0 litre and the 500 8.2 litre. the problems were the computer ...Engine: Northstar 4.6L V8 (LD8/L37) Report; Share; Posted August 27, 2009. Jim, I moved this to the 19th hole. Pre-1995 - DTC codes OBD1 >> ... Actualy the pics were shrunk, they are from a good camera. The car had 420,000 KM's on it. There wasn't a body panel on it without rust.Northstar lineage can get a mite confusing. The Seville SLS model actually came with the RPO LD8 (VIN Y) Northstar. Rated at 275 hp and 300 lb-ft, it was designed to provide more low end than the ...The LT5 and the Northstar are very very different engines with little or nothing in common. ... The Aurora IRL V8 was originally a 4.0L n/a motor. I believe the Chevy IRL V8 was just a new name on the same program when Olds was killed. They made some improvements, but would have done the same thing if it was still an Aurora-branded motor. ...

B. bentley Discussion starter. 7 posts · Joined 2005. #1 · Aug 5, 2007. Someone who works on Northstar engines said the overheating problem on my 1994 Cadillac STS is due to one of 3 problems – a bad water pump, bad head gaskets, or a bum thermostat. I am looking for second opinions because he thought it probably was the …Here's the Northstar firing order. Disregard the pre-2000 coils. The left (front) bank is 2-4-6-8. The right (rear) bank is 1-3-5-7. The phony dual system is one pipe from the pre-cat Y to the rear exhaust pipe Y. Different exhaust systems sound very different on these cars. Look at the CORSA 14150 cat-back system.The Aurora's 4.0 L V8. The Aurora came standard with Oldsmobile's 4.0 L (244 cu in) L47 V8 engine, a DOHC engine based on Cadillac's 4.6 L Northstar V8. The Northstar engine and 4T80-E had been exclusive to Cadillac prior to the Aurora. The L47 put out 250 hp (186 kW) at 5600 rpm and 260 lb⋅ft (353 N⋅m) torque at 4400 rpm.Engine: Northstar 4.6L V8 (LD8/L37) Report; Share; Posted September 26, 2004. ... It was a Yank, it really woke the car up on the low end. The 3K works good but if I were to do another I would try a 3,300 - 3,500. That was the biggest bang for the buck I would say. I also changed cam timing to help in mid-range.

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So Cadillac always called the 292 HP Northstar a 300 HP engine even though it really wasn't. The statement that the 275 and the 292 HP Northstars are identical except for cam timing is correct. The lower HP version (275) does have a little more torque. When the Feds stopped the roundup game, Cadillac quit talking about the 300 HP engine (which ...Dealer will be at 6,000 plus. The SC 3800 is a much better choice if dependably is a factor. Close in performance to the Northstar, great fuel economy, very easy to service, will easily go 300,000 miles running used fryer oil, yes that unfinicky and resilient of an engine. It was an absolute tragedy GM quit using the 3800.9 Sept 2012 ... ... engine type: gas Horsepower: 300 hp @ 6000 rpm Torque: 295 ft ... Power comes from a heavy duty 4.6 L V8 which provides decent acceleration and ...83684 posts · Joined 2006. #2 · May 10, 2016. Spec falls between between 140 - 170 psi, warm, throttle wide open, and all 8 cylinders within 10% of each other. If one cylinder is low and a teaspoon of engine oil through the plug hole brings compression up close to spec, it's bad rings. If compression does not increase with addition of a bit ...The Northstar engine comprises a cast aluminum 90° V8 block, with a 102 mm bore spacing split into unitary upper and lower halves. It is capable of producing 300 hp, and has an engine displacement of 4565 cc. The lower crank case assembly supports the crankshaft without the conventional main bearing caps.

Also theres a recall for a bad power steering pressure hose so make sure thats done. Futhermore theres a recall for a bad onstar module so make sure thats been done as well. Anthony. Category: Cadillac. Satisfied Customers: 11,822. Experience: ASE Master Automobile Technician with over 20 years exp. in this field.Northstar cadillac engine v8 cts 2003 engines eldorado made series wikia discounted 2000 wiki used Northstar venerable replacement lasted It's the end of the road for gm's northstar v8 ... Northstar end. ️ northstar engine ️ good or bad? what you need to know ️Cadillac 4.6 northstar engine for sale Cadillac northstar 6l vvt lh2 sandrail ...The owner of this car, Alan, is one of the coolest guys I've ever had the pleasure of meeting. When I saw him last year, at Northwest Fierofest, I asked him ...178 posts · Joined 2013. #1 · Aug 10, 2021. For a very long time I have been interested in the old northstar v8. I think the engine has a lot of potential and would be great for the road racing I do. Years ago, there was a company called Cadillac Hotrod Fabricators that had all kinds of things for this engine, but they are long gone.The Northstar. Developed to combat an onslaught of German and Asian rivals with DOHC V8 engines, GM developed the Northstar engine family for Cadillac. It was a first for GM and for Cadillac as a ...What about the L47 4.0 Liter Olds Aurora V8? ~250hp out the box, race proven (650 horsepower in twin turbo LMP trim) and was good enough for Carroll Shelby. The Aurora was FWD, works for your transverse setup. It should be lighter than the 4.6 Northstar. Not sure on price or availability on your side of the Atlantic.Cadillac Northstar Engine Head Gasket Repair. J Wiebe & Associates >> Northstar Performance International ... If you spend the $3,000-$5,000 and ensure your Northstar is repaired with our SureGrip head studs, you are breathing new life into that Cadillac of yours. ... If both the body and interior are in relatively good condition, GET IT …The Northstar is a fine engine if you find a good one -- but woe to those buyers who don't know to spot a bad one. Oiling Issues. Far and away, most of the Northstar's issues have to do with oiling. GM fixed a lot of these problems in the 2000 model year, but earlier engines are known to develop leaks around the main seals and valve covers. Oil ...This engine, often sourced from Cadillac vehicles, offers a significant increase in power, making it a popular choice for those looking to enhance their vehicle's performance. ... The LS4 is a small-block V8 engine that offers a substantial increase in power and torque compared to the Fiero's original engine. This conversion involves a ...Besides the 1uz'fe motors, I really think this motor and the Q45 V8 motors are a good buy and good bang for the buck... Just entertaining the ideas of decent 300hp motors for cheap to toy around with... Looking for input I guess... I remember these Northstar motors were the main competitor to the early model Lexus 1uz-fe's..The Northstar. Developed to combat an onslaught of German and Asian rivals with DOHC V8 engines, GM developed the Northstar engine family for Cadillac. It was a first for GM and for Cadillac as a ...

A muscular yet refined 4.6-liter V8 powers the XLR. A six-speed automatic (that allows manual-style shifting) sends the V8's 320 hp and 310 pound-feet of torque to the rear wheels.

Yes & no. The problem is that the head bolt threads pull. Coolant gets into the cylnder and the rest is history. The question is, which came first, head bolt failure, allowing coolant into the bolt holes, acting as a catalyst and corroding the threads, or the threads failing first, allowing coolant into the cylinders. 2.Pros. Available Northstar V8, ample interior space, optional third-row seat, sporty handling. Cons. A few cheap interior materials, love-it-or-hate-it styling, V8 models get expensive quickly.The 2011 Lucerne is available with a 3.9-liter V6 engine making 227 horsepower or a 4.6-liter V8 making 292 horsepower. Both are weak engines for their size -- competitors offer more powerful, more fuel-efficient options in both V6 and V8 powerplants. Both are available only with an antiquated four-speed automatic transmission, while most ...The Northstar engine gets the expected changes and upgrades demanded by this supercharging. This includes increased cooling flow within a reinforced block, oil-cooled pistons with a reduced 9.0:1 ...Stay away from the 01 and prior. 2006 is very good year for the NorthStar. It was the first year for 292 hp and was the basis for the 4.4 supercharged version in the STS-V. It is the best offering. 02 and up are pretty good, They get a bad rap because people heard of the earlier engines blowing head gaskets.looking at a one owner low mileage 35k miles on a ld8. oil changes every 5k miles. have read hundreds of good reviews and also have read very scary reviews of entire reseals needed at low miles and also head gaskets blowing up.. any insight? Like. Sort by Oldest first. CadillacNumber56. 784 posts · Joined 2021. #2 · Jan 18, 2022.Mobil 1 is the finest oil for the NorthStar engine because of its innovative synthetic formulation. It has the finest performance excellence, offering good mileage in your car. This motor oil avoids sludge and deposits, resulting in longer engine life. Secondly, it helps to keep oil viscosity constant.The DeVille was large and powerful with the Northstar V8 under the hood, and the ride was smooth as silk. ... The Northstar Engine with power when needed. Not to forget the great gas/mileage when ...

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There are also issues on the later Northstar V8 engines of excessive carbon buildup causing a knock on cold starts, no oil pressure on some of the older engines, leaky rear main seals, and more. ... Anyways, this particular engine is actually really close to being a good engine, but a few flaws put it on this list, and that's the 3VZ-E. ...The 2010 DTS is powered by a 4.6-liter Northstar V8 engine making 275 horsepower. Power travels through a four-speed automatic transmission -- a serious flaw, the press says, in a year when even other GM products generally use six-speed models. ... "The Northstar engine always has been a good performer, with a distinctive, overhead-cam V-8 ...When it comes to household cleaning, having a reliable and efficient vacuum cleaner is essential. The Dyson V8 Absolute is a popular choice among consumers looking for a high-perfo...Welcome to CF !!! Please read the non-scientific poll on Northstar engine/gasket failures in the stickies in Engines; Northstar. Stickies, marked with a push pin, are necessary, timeless info in any forum of interest. 1997 - 1998 - 1999 had block metallurgy troubles, 2000 had head bolt thread length problems.A rebuilt, studded 2002 Northstar is nearly bulletproof. BUT - follow the GM service manual top overhaul or major overhaul procedures - too many special torques and procedures to wing it. Head stud job, $1300 - $2,500 depending on shop and parts. Total overhaul - $3500 - $5000 depending.Feb 16, 2017 · Engineers conceived a new dual-overhead cam, four-valve-per-cylinder V-8 engine--the Northstar. This power plant was the heart of Cadillac's Northstar System, which included a greatly improved suspension and braking system. The division redesigned its entire line to incorporate these new technologies for the 1990s and beyond. The engine is the famed Northstar V8, which in this base trim level provides 275 horsepower and 300 (!) lb. ft. of torque. ... sounds awesome, and gets very good fuel economy for a V8 (I get 22.5 ... Cadillac DTS V8. The Cadillac DTS V8 is a front-wheel drive sedan with all-speed traction control and a Northstar 4.6-liter DOHC V8 engine with 275 horsepower at 6000 rpm and 295 lb-ft of torque at 4400 rpm and is fit with a 4-speed automatic transmission. The baseline DTS also comes with 4-wheel antilock brakes and 4-wheel independent suspension.Now synonymous with Cadillac performance, the popular Northstar V8 will soon be discontinued by General Motors. The engine was developed in the late 1980s and introduced in 1992 to compete with ... ….

Jan 18, 2024 · How reliable is the Cadillac Northstar engine? Read about common problems with the 4.6L, 4.0L, and 4.4L Northstar engines. Structural engineers have a different fee structure than an architect and home inspectors. We outline the difference in cost, so check it out! Expert Advice On Improving Your Home ...The Aurora would debut in 1995 with a DOHC V8 engine, but this was a derivative of the Cadillac Northstar engine and not an Oldsmobile design. Cadillac Granted, the 350 in the Seville was fuel-injected, while all other applications of the Olds 350 that year were still carbureted.The STS V8 is a much cheaper option for GM fans who want a V8-powered, RWD sports sedan when compared to the G8 (which holds its value damn well). 2005 Cadillac STS V8 - 61,000 miles. 2005 Cadillac Deville Base (Limited Edition) - 131,000 miles. 2006 Chrysler 300C - Totaled.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. It also beat out both …245 degrees isn't too bad, that's true. I had a '78 Pontiac Grand Prix with a 301 V8 and it would "normally" run around 215 or so. That "seemed" high because most other engines at the time were easily running under 200 degrees. I think it's just a matter of what people are "used" to, not what's actually good or bad for the engine.1 day ago · Northstar Swap / Interchange - What Years Will Fit and the Differences. 93/94 - These engines have the knock sensor below the fire-wall side cylinder head, screwed into the side of the engine block. These engines have slots cut into the intake ports to feed exhaust gas from the EGR system into the combustion chambers. Performance Options. Cadillac DTS V8. The Cadillac DTS V8 is a front-wheel drive sedan with all-speed traction control and a Northstar 4.6-liter DOHC V8 engine with 275 horsepower at 6000 rpm and 295 lb-ft of torque at 4400 rpm and is fit with a 4-speed automatic transmission. The baseline DTS also comes with 4-wheel antilock brakes and 4-wheel ... Is the northstar v8 a good engine, But the engine started burning a quart of oil every 1000 miles and this went to a quart every 500 miles at about 110,000 miles on the car. The Northstar is a POS IMO, my 84 Corvette with the the 5.7 liter pushrod burns no oil and runs like a clock at over 90,000 miles. Stay far away from a used car with the Northstar engine., But idling in traffic and "babying" the engine will result in lack of lubrication (splash oiling) and worn lobes. These are GM Part numbers 1647436 - Right Exhaust, and 1647437 - Left Exhaust We start with only good OEM cores (measured for tolerances) and have them re-ground by a professional cam grinding company who does nothing but camshafts ..., maxrayruss, 12/08/2010. 2000 Cadillac DeVille DTS 4dr Sedan. I purchased this beauty on ebay with 100,000 miles and the car was a super clean Sarasota, Fla car. It has all options and is an eye ... , The Northstar engine comprises a cast aluminum 90° V8 block, with a 102 mm bore spacing split into unitary upper and lower halves. It is capable of producing 300 hp, and …, After about a decade-long drought, a V8 engine finds its way back into the Buick lineup. Available on the CXL trim and standard on the CXS, the 4.6-liter Northstar DOHC V8 cranks out 275 and 290 ..., The 4.5 and 4.9 are upgraded versions of the 4.1. They are responsive and provide adequate horsepower, and tend to be very reliable and long-lived engines. In fact, they remain two of the lowest warranty claim engines Cadillac ever produced. If the transmissions held up better, these cars would run to 300k and beyond., If you like the car, its in good condition its worth fixing. Keep in mind that the DEVILLE will probably be the LAST big car that GM will make, ... Engine: Northstar 4.6L V8 (LD8/L37) Report; Share; Posted August 13, 2010. Leaking under pressure cold is different than leaking under pressure HOT., Feb 24, 2011 · 9,808. Location. New Jersey. May 26, 2012. #8. HT-4100 is not a good engine the v8 368 6litre known as the v8-6-4 is not a bad engine its the same design as the 425 7.0 litre and the 500 8.2 litre. the problems were the computer disconnect it and it runs forever. , Hey gang, A fella at work who knows a lot about cars & engines told me a problem with some of the Northstar 4.6 V8's. He claims that the earlier engine block castings were prone to fail due to porasity in the casting. He claimed that GM's "fix" was to offer coolant "pucks" to add to your coolant to stop erosion of the engine block., FWIW, after going back through the OP's past posts, he drove a pre-2000 Northstar vehicle so his choice of a 10W-30 oil was correct for his flat-tappet engine. Quaker State is also a good oil, part of the SOPUS (Shell Oil Products U.S.) umbrella of Shell, Pennzoil. Quaker State, others. Premium Member., Built Buick Lucerne (400HP Northstar Engine) We thought it would be cool to share with all of you one of our latest builds for a good customer of ours. This is a Buick Lucerne with a Northstar 4.6 Engine. The customer wanted something more than what the stock engine offered. He decided he wanted an all motor combination with wheels, tires ..., Stage 4 Package. We are working on a STAGE 4 Performance Package for the 1993-1999 and 2000-2011 Cadillac Northstar V8 engines. This package will consist of custom camshafts (4) and a tuned PCM to match. The 1993-1999 will be released first, roughly the beginning of July or 1st week in August. The package is $1795.00 including shipping., Prior years relied on a "normal" 4.1 or 4.5 liter V8, which weren't noted for any real go power and were rated at just 170 and 200 horses, respectively. However, the Northstar V8 displaces 4.6 liters and 295 horses, which equates to a full 95 horses more than the prior year's 4.5 V8., Yes, the Nissan 5.6 V8 is considered to be a good engine due to its powerful performance and reliability. It offers strong horsepower and torque, making it suitable for various applications, from towing to off-road driving. Additionally, the V8 engine is known for its smooth power delivery and fuel efficiency, providing a balanced driving ..., The Cadillac Northstar was so beloved at the time that it was considered one of the ten best engines in North America by Ward's Auto. In fact, it made the list three times. The 4.6-liter V8 engine was rated for 295 horsepower. However, it got more powerful as the years progressed and even clocked in at almost 500 horsepower., Cadillac Twin-Turbo Blackwing V8. The most powerful engine in Cadillac history also enjoyed the shortest time on the market. The twin-turbocharged Blackwing V8 was a clean-sheet design that squeezed 131 hp per liter from its 4.2L design thanks to 20 pounds of boost. With total output of 550 hp and 640 lb-ft of torque (when installed in the CT6 ..., 83684 posts · Joined 2006. #2 · May 10, 2016. Spec falls between between 140 - 170 psi, warm, throttle wide open, and all 8 cylinders within 10% of each other. If one cylinder is low and a teaspoon of engine oil through the plug hole brings compression up close to spec, it's bad rings. If compression does not increase with addition of a bit ..., Besides the 1uz'fe motors, I really think this motor and the Q45 V8 motors are a good buy and good bang for the buck... Just entertaining the ideas of decent 300hp motors for cheap to toy around with... Looking for input I guess... I remember these Northstar motors were the main competitor to the early model Lexus 1uz-fe's.., We would like to show you a description here but the site won't allow us., You should do a search as this has been discussed many times.. As long as you maintain the engine, particularly the cooling system, the Northstar is very reliable for hundreds of thousands of miles. Personally, I had 110,000 on a 1995 Cadillac Eldorado Touring Coupe and it still drove like brand new., Initially designed to battle against dual overhead cam V8 motors in the late 1980s, General Motors was hoping to capture the market with new engine technology that was equivalent to BMW and Mercedes-Benz. Used in Cadillac, Oldsmobile, Pontiac, and Buick applications, the Northstar engine provided good power output despite its complex design., Please Like, Share & Subscribe for more, May 18, 2008 · Nothing is perfect, and the Northstar performs beautifully overall, but isn't exactly a standout in terms of durability compared to any other engine. So it's hard to call anything "as good as xxx..." in terms of an engine, but the 3.6L is a great engine and is taking over where a new Cadillac started V8 was to begin, so all will get used to it. , What about the L47 4.0 Liter Olds Aurora V8? ~250hp out the box, race proven (650 horsepower in twin turbo LMP trim) and was good enough for Carroll Shelby. The Aurora was FWD, works for your transverse setup. It should be lighter than the 4.6 Northstar. Not sure on price or availability on your side of the Atlantic. , FWIW, after going back through the OP's past posts, he drove a pre-2000 Northstar vehicle so his choice of a 10W-30 oil was correct for his flat-tappet engine. Quaker State is also a good oil, part of the SOPUS (Shell Oil Products U.S.) umbrella of Shell, Pennzoil. Quaker State, others. Premium Member., A problem with the Crankshaft Position Sensors can cause the vehicle to not start. The cost to repair the Crankshaft Position Sensors is $55.31 for each sensor, there are two sensors, and $97.50 for labor to replace both sensors. The cost to replace the Fuel Pressure Regulator is $42.62 for parts and $39.00 for labor., Degree Overview — See how your technical knowledge and career options can grow with a master's degree in electrical engineering online. Updated June 2, 2023 thebestschools.org is a..., It is the standard engine in the high-performance XLR-V roadster and STS-V sedan. Exceptional smoothness, refinement and drivability were the targets for the 469-hp supercharged Northstar V8, which features an all-new aluminum block design and the most power output for any production Cadillac to date. To ensure tight tolerances and strength ..., When it comes to v8 engines, the northstar is a name that holds significance in the automotive industry. Developed by general motors, the northstar engine was introduced in 1992 and was known for its advanced technology and performance capabilities. ... Remember, by prioritizing regular maintenance, adapting good driving habits, and …, Occupying the gap between this Fiero’s rear wheels is a 4.7L Northstar V8 lifted from a Cadillac Seville ... Some 2023 Cadillac Escalade Units Will Need A 6.2L V8 Engine ReplacementApril 28, ..., The Dyson V8 Animal vacuum cleaner is known for its powerful suction and efficient cleaning capabilities. However, some users have reported issues with the dustbin door detaching f..., Mar 31, 2024 · The Cadillac Northstar was so beloved at the time that it was considered one of the ten best engines in North America by Ward’s Auto. In fact, it made the list three times. The 4.6-liter V8 engine was rated for 295 horsepower. However, it got more powerful as the years progressed and even clocked in at almost 500 horsepower. , Do you have an oil leak on your Northstar 4.6 equipped Cadillac? There are several common areas these engines will leak from. Valve cover gaskets leak and ...