Is the northstar v8 a good engine

Cadillac Deville 2003 79,0000 miles V8 Northstar engine 32 valve 4.6 liter. I recently been offered a 2003 Cadillac for $1,500. its owned by a 85 year old and has the carfax history of the vehicle. Never been crashed, but it burns a little oil. Any thoughts? (123,000 miles*) Archived post. New comments cannot be posted and votes cannot be cast. 9.

Is the northstar v8 a good engine. The Northstar V8 was Cadillac's first dual-overhead cam engine, and it helped the American manufacturer catch up with some of its rivals in Europe and Japan. Sophisticated and powerful, the Northstar V8 was a potent engine. Early engines had 295 hp, but in the XLR-V Roadster and the STS-V, this increased to 469 hp.

The Cadillac 4.2L Twin-Turbo V-8 is the first Dual Overhead Cam (DOHC) eight-cylinder engine from Cadillac and General Motors since the duo discontinued the Northstar V8 engine in 2010.

Today I talked with a reputable local engine shop and the machinist I was talking with said that he had personally rebuilt several northstars, and that he felt that it would be around $3000 USD to do a complete rebuild from top to bottom, and more to have it done with a few things I would like to have done to the engine to up the ponies a ...Supercharged Northstar by the NumbersType: 4.4L DOHC 32-valve 90-degree V-8 RPO: LC3 Displacement: 4,371 cc (267 ci)Bore x stroke: 91 mm x 84 …Given that the official recommendation from Cadillac for leaky Northstars is to literally remove the engine from the car and replace ALL seals and gaskets in one operation (and this is a 20-30 hour job depending on which specific YMM), that will get real expensive real fast.Fuel Economy of the 2000 Cadillac Seville. 2000 Cadillac Seville. Search by make for fuel efficient new and used cars and trucks. www.fueleconomy.gov. My MPG Estimates. The same STS might touch 25. They use the 3.71: performance ratio. Best I've seen is 25.2 - and that was for 2 hours with a tailwind on I-95 in NC northbound.The term Cadillac V8 may refer to any of a number of V8 engines produced by the Cadillac Division of General Motors since it pioneered the first such mass-produced engine in 1914.. Most commonly, such a reference is to one of the manufacturer's most successful, best known, or longest-lived 90° V8 engine series. These include the pioneering overhead …A Northstar with the cooling system in good condition runs 24/7/365 at the design temps of 190 - 210 whether in Alaska or the Sahara. For our 2000 - 2005 series the fans don't even go to SLOW until 224 degrees and FAST at 236. If the fans come on the engine cools to 213, fans shut off.Advertising supports this site . News. Latest News Videos Business Listings Desert Racing Press Releases Press Releases (legacy) Rally Raid Short Course Racing Product Reviews Featured Vehicles Showroom Shop Tours Story TimeThe 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 Aurora's 4.0-liter motor was actually a somewhat smaller version of Cadillac's Northstar V8, which had been designed for use in transverse engine bays by front-wheel drive cars. Sharing many design similarities, the 32-valve motor dropped 40 ponies to offer 250 horsepower and 260 lb-ft of torque. Although the Aurora wouldn't be able to save ...Fuel Economy of the 2000 Cadillac Seville. 2000 Cadillac Seville. Search by make for fuel efficient new and used cars and trucks. www.fueleconomy.gov. My MPG Estimates. The same STS might touch 25. They use the 3.71: performance ratio. Best I've seen is 25.2 - and that was for 2 hours with a tailwind on I-95 in NC northbound.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...Mechanically, Eldos are powered by different versions of the 4.6-liter Northstar V8 engine, which sends power to the ground via the front wheels. MagnaSteer variable effort steering gear is standard.Feb 12, 2016 · #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. CONS....Must have decent if not EXCEPTIONAL mechanical skills to work on powertrain. Special tools may be needed at times for "hardcore" repairs. And the evening, it is 6.20 PM here, my car gives its power, with a very nice V8 "music", smooth and very comfortable to drive. I am very glad. It was very funny to place the plugs under the windscreen engine side, I was on a carpet, on my engine:lol: It is easy to do, with good tools, I am a quiet guy, one hour to do that job.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 ...

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 the best online master's in engineering with this list of highly accredited online degree programs. Updated June 2, 2023 thebestschools.org is an advertising-supported site. F...The Coyote also served as the basis for the Boss 302's replacement, the 5.2-liter, flat-plane crankshaft V8 installed under the hood of the Shelby GT350 that boosted its redline from 7,500 rpm in the Boss to 8,240 rpm. The 'Voodoo' engine offered up a whopping 526 hp and 429 lb-ft of torque, and set the stage for the supercharged variant dubbed ...Combining a V8 engine with a FWD car is bad enough, but the STS took it a step further with the engine itself; it used Cadillac's infamous Northstar V8. Specifically, a 4.0-liter version. Remember, this car came out in the 90s, at which point the Northstar was known for simply refusing to work after a while.

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Acceleration and Power. The 2009 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, since even other GM products generally use six-speed models.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 ...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.Jan 18, 2022 · The 32 valve V8 Northstar was not an option - it was IT in one of two performance ranges - the ~275 hp 3.11 final drive economy cruiser version and the ~300 hp 3.71 final drive performance version. The 8th character of the VIN gives the powertrain - VIN Y is the cruiser, VIN 9 is the performance.

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 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 made history in 1991 with the introduction of the Northstar engine. Originally developed by Oldsmobile, the high-performance 4.6-liter 90-degree V8 was General Motors' most complex ...I have a 2002 deville with the 4.6 northstar engine. Me and my friend (really good friend) have dropped the engine to do a head gasket replacment. I 've got the gaskets and new head bolts from the local chevy dealer. My Clilton book gives me no information on this engine. I am looking for the torgue pattern for headbolts. please Help. Thanks LesJan 18, 2024 · How reliable is the Cadillac Northstar engine? Read about common problems with the 4.6L, 4.0L, and 4.4L Northstar engines. We would like to show you a description here but the site won't allow us.28 Oct 2011 ... Suggestion: If you find a low mileage unit (75k miles comes to mind), and it looks and drives good, with what looks like a decent history, and ...Details. Cadillac 4.6L Northstar Engine. This part number fits 1996-1999 applications except 1998-1999 Seville, they use part number P4192. Engine VIN code 9, high output. This Premium Longblock engine includes block, crankshaft, connecting rods, pistons, timing set, oil pump, camshaft, lifters, bearings, cylinder heads, valves, springs, timing ...The Chevy 5.3 L V8 engine, also known as the Vortec 5.3 or the EcoTec3 is generally looked at as a reliable and trustworthy engine. The Vortec 5300 is a small block V8 that was produced in 1999 for the first time. Across several different generations the 5.3 engine was used in many popular Chevy models such as the Chevy Silverado, the …But arguably the Northstar’s most important quality was that it was GM’s first-ever overhead-cam V8 design – something that GM’s current small-block V8 engines don’t have to this day.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 …

N*Caddy said: Since almost all years have 300 HP, and no major workforce, manufacturing process and design changes happed I would say: '97 if you are more the '92-'97 body style fan (like me) because '97 is the most updated model in that body style. '03 if you are more the '98-'03 body style fan because of the same reason (see the ...

PRC Engine Mount for Northstar V8 For 1998-2004 Cadillac Seville 2000-2011 Cadillac Deville/DTS 2006-2011 Buick Lucerne CXS/Super ... PRC Engine Mount for 1993-2002 E/K Body Northstar V8 Fits 1994-1999 Cadillac Deville 4.6 1993-2002 Cadillac Eldorado 4.6 1993-1997 Cadillac Seville: $199.00. New Products#1 · Jan 18, 2022. 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 …NORTHSTAR HEAD BOLT REPAIR #1: The early 2000's Cadillac Northstar engines have had a bad reputation for a long time. The CAR WIZARD 🧙‍♂️ knew he was taking...Overall, it’s a decent car for the money and one of the best-buy options from this vehicle class. The Northstar V8 engine is already well-known since it’s used in some older Cadillac models and it lasts a long time. So, with our pieces of advice and a trusted mechanic, you will be able to enjoy the comfort and long years of service with ...The Northstar V8 VIN Code 9 or Y is a 4.6L engine. The cylinders are arranged in 2 banks of 4 with a 90 degrees included angle. The left (front) bank of cylinders are number 2-4-6-8 and the right (rear) bank cylinders are 1-3-5-7. Engine firing order is 1-2-7-3-4-5-6-8.Thanks Jesda for that link to "Anatomy of a Northstar V8 engine" Fantastic insite as to all the inside stuff of the engine, and why's ! ... pull the engine and properly stud it. That's no good, the cars woulds last forever, or until the person gets sick of it. Having to buy a car every 5-7 years when it's just paid off is just BS.The Northstar V8 engine family is General Motor's top-of-the-line luxury power plant. 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. ... The cure, says Cadillac, is to do a ring cleaning procedure (seems those …Vin 9's engines are rated 300hp while Vin Y's are 275hp. Both are great engines. Good Luck, RDH . Save Share. Like. ... The Northstar engine - cylinder block, halfcase, and oil pan - is machined as one unit - you can't swap cylinder block parts around. Oil pan, same year - maybe. Block and halfcase - no.

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Engine: Northstar 4.6L V8 (LD8/L37) Posted September 26, 2011. My 2006 is 5.5 years old with 107,865 miles on it. So far so good. I had the coolant changed back in the early summer at about 95.000 miles. Also had the transmission fluid changed at the same time.Engine: Northstar 4.6L V8 (LD8/L37) Report; Share; Posted October 6, 2013. Note the transmission is different also. I prefer the 275 HP one over the 300HP one. ... Lol. It takes alot today to blow things, especially Cadillacs. If it is broken in and runs good. I drive it like I stole it. GM FAN FOREVER. Nice, clean, luxury= fine automobile ...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.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 ...In this article, we will delve into the inner workings of the Northstar 4.6 engine, explore its key components, and provide a comprehensive diagram to help you better understand its intricacies. At the heart of the Northstar 4.6 engine is its unique and innovative design. Unlike traditional V8 engines, which feature a single block with two ...Have a GM dealer run the car's VIN through the GM VIS system. You'll get a readout of all GM recall and warranty work as well as some normal service info. You might find a 1" x 2" campaign sticker or two on a conspicuous place on the engine. Premium Member. If it won't run, chrome it. Maryland Eastern Shore.Cadillac Deville 2003 79,0000 miles V8 Northstar engine 32 valve 4.6 liter. I recently been offered a 2003 Cadillac for $1,500. its owned by a 85 year old and has the carfax history of the vehicle. Never been crashed, but it burns a little oil. Any thoughts? (123,000 miles*) Archived post. New comments cannot be posted and votes cannot be cast. 9.4.6 Northstar Engine mod question. Im wondering as to what extent is the 4.6L v8 northstar engine modifiable. If im not mistaken it gets 270hp stock, But what all to the engine could be done that would give it substantial hp increase. I plan on getting headrest screens,visor tv screens,two 12" subs/w two amps for the interior....Visibility is good, despite wide rear pillars and a high back shelf. Many controls and buttons are difficult to decipher, so owners must consult the manual. ... Northstar V8 Engine and Hydra-Matic CADILLAC 4.6L Engines. The Cadillac Northstar 4.6 Liter Engine 1994-2011 is a V8 engine designed by Cadillac, a division of General Motors, for use in their luxury vehicles. The base engine consists of: An all-aluminum engine block and cylinder head Dual Overhead Camshafts (DOHC) Variable Valve Timing (VVT) Sequential fuel injection ….

He decided against using a Coyote V8, LSx V8, or Vortec 4200 inline-six. Instead Calvin will be using a Cadillac 4.2 L Northstar (LH2) V8 sitting on custom mounts. A set of custom exhaust manifolds will power two eBay GT3582 turbochargers. Calvin says the turbos should be good for 800 whp.Today I talked with a reputable local engine shop and the machinist I was talking with said that he had personally rebuilt several northstars, and that he felt that it would be around $3000 USD to do a complete rebuild from top to bottom, and more to have it done with a few things I would like to have done to the engine to up the ponies a ...12/5/08 7:09 p.m. The Northstar bolt pattern is the same as the GM "metric" pattern (as mentioned above) except for one bolt hole. That means any transverse manual that uses the old 2.8 up through the modern 3900 and everything in between. Of course, flywheel required would depend on the trans used. Details. 4.6L Northstar Cadillac engine. This part number fits 2000-2002 non-HO applications. Engine VIN code Y, non-high output. This Premium Longblock engine includes block, crankshaft, connecting rods, pistons, timing set, oil pump, camshaft, lifters, bearings, gasket set, cylinder heads, valves and springs. Key Takeaways. Viable replacement options for the Northstar engine include the LS series, the Cadillac 3.6L V6, and the GM 3800 Series II/III engines. Considerations for replacement include compatibility, cost, and intended use. Replacement with a non-original engine may require additional modifications.Initially rated at 295 horsepower, the Northstar V8 has grown over the years to an incredible 469 hp at 6,400 rpm (STS-V Supercharged Northstar engine). In 1995, the engine was ranked as one of the "10 Best Engines in North America" by Ward's Auto World. It repeated the honor in 1996 and 1997, but it hasn't cracked the Top 10 list in ...Creating the Engine - The Bugatti engine is capable of producing 1,000 horsepower. Find out how Bugatti engineered a W-16 engine and see pictures of the Bugatti engine. Advertiseme...The Cadillac High Technology Engine was a V8 engine produced by the Cadillac division of General Motors from 1982 to 1995.. While the High Technology engine was being developed, due to higher Corporate Average Fuel Economy standards being phased in by the United States government, Cadillac introduced a variant of their traditional V8 engine …But arguably the Northstar’s most important quality was that it was GM’s first-ever overhead-cam V8 design – something that GM’s current small-block V8 engines don’t have to this day. Is the northstar v8 a good engine, Cadillac 4.2 liter twin-turbo V-8 LTA engine. The 4.2 liter V8 engine (GM RPO code LTA) is an eight-cylinder, dual overhead cam (DOHC) twin turbo engine produced by General Motors specifically for use in Cadillac luxury vehicles. The engine is the result of a new clean-sheet engine design as well as Cadillac's first twin-turbo V-8 engine. , 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. , The engine was a 4.6 liter 32-valve DOHC Northstar V8 rather than an LS V8. It produced 320 hp and 310 lb-ft of torque. As with the Corvette, the XLR included a transaxle in the rear, but only a five-speed automatic transmission was available as a premium vehicle. ... Related: 10 Surprisingly Good American Performance Cars People …, 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 ..., 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., There are two available engines: a 3.6-liter V6 good for 255 horsepower and 252 pound-feet of torque, and a 4.6-liter V8 that generates 320 hp and 315 lb-ft of torque. , The 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 V8 too ..., The Chevy 5.3 L V8 engine, also known as the Vortec 5.3 or the EcoTec3 is generally looked at as a reliable and trustworthy engine. The Vortec 5300 is a small block V8 that was produced in 1999 for the first time. Across several different generations the 5.3 engine was used in many popular Chevy models such as the Chevy Silverado, the …, 2. Oil filter gasket itself. 3. Oil filter adapter O-rings/composite seal plate (depending on year) and (if fitted with V03) - oil cooler lines. 4. Tossup between cam cover seals and oil level sensor in the lower front of the pan. 5. Halfcase and oil pan formed silicone seals (not "gaskets") 6 Rear main bearing seal at the flexplate., Search the performance threads and do a good throttlebody cleaning with toothbrush, rags, and TB cleaner (NOT choke cleaner). As posted, use a good 10W-30 oil from whoever you like/prefer. Use a WIX or NAPA Gold oil filter. Run your tires at 33 psi COLD, and torque the lug nuts to 100 ft/lb in a star sequence., Now owned by a Rafi Ward of Boulder, Colorado, this sacrilegious and crappy Cadillac, powered by one of the worst engines ever made by General Motors, the Northstar V8, will continue its life as a ..., How much oil is needed for a 1997 Cadillac Northstar 32 valve engine? The oil capacity of the 4.6L 32 valve Northstar in a 1997 Cadillac is 7.5 quarts., 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., An automotive YouTuber is swapping a Cadillac Northstar engine into a Ford Fairmont to annoy purists. The Northstar LH2 engine fits better in the Fairmont than a Coyote V8 would., How reliable is the Cadillac Northstar engine? Read about common problems with the 4.6L, 4.0L, and 4.4L Northstar engines., I believe the Northstar V8 is a front wheel drive engine. That would be the major problem with it. A nice LS1 or LT1 would be my choice if I were to do Fuel Injected swap. 1991 Sonoma - 355 SBC - TH400 - Gear Vendors OD - Exploder 8.8 Disc Rearend - Bags full of groceries - 2 Pump 4 Dump Hydraulic Suspension - 48VDC., The DTS is offered only with the 4.6-liter Northstar V-8 and the STS is offered with GM's 3.6-liter, direct-injection V-6 as its base engine. The Lucerne Super's sole powertrain is the Northstar., 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., Hundred times more durable engine than any european engine for starters. And not so hard to work on. And really nice in power and smoothness. My northstar (2001 Deville) has got about 185tml in the odometer now and not having issues other than minor oil leaks. If it blows the head bolts or headgaskets I would say they had a good run and fix it., The base engine is a 3.6-liter V6 that makes 255 hp and 254 pound-feet of torque; it's coupled to a five-speed automatic. Those who step up to the 4.6-liter V8 will find 320 horses and 315 lb-ft ..., The Northstar V8 actually predates the LS based engine by a solid 3 years, and it was more suited for Cadillacs FWD fleet at the time. It was also doing it’s best to compete with European luxury and technology. Loved my 05 Bonneville GXP. Put 300xxx miles on that baby and never needed a head gasket., 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 ..., However, overall, the 4.4 Northstar is a good engine option for those who want a powerful and reliable ride. What are the Problems With the Northstar Engine? The Northstar engine was introduced in the early 1990s and was GM's first attempt at a premium V8 engine. The engine was very powerful and had a lot of potential, but it also had some ..., Our remanufactured units are among the best available if you are looking for a better-than-new Cadillac Northstar V8 engine or another popular Cadillac motor. Each engine receives a complete fix of all known manufacturer defects created at the factory. ... Because our rebuilt and remanufactured Cadillac engines are as good as new or better, we ..., Dealer procedure ,believe it or not, was to change the engine if a customer had a Northstar caddy in warranty. Which just kicks the can down the road until THAT motor fails too. Which is a goddamn shame because a Northstar engine actually sounds pretty good at WOT. If it's running right they're decent motors,but fuck fixing them when they break., Today the engine warning light (outline of engine) came on (in the dash) and shortly after, I started experiencing a clattering noise coming from the engine. It sounds like a diesel, or valves clattering. It does not seem to occur below 2,000 rpm or above 4,000 rpms. I checked the oil and it is OK., The Northstar V8 engine family is General Motor's top-of-the-line luxury power plant. 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 ..., Originally Posted By: GMBoy The Northstar engine had issues with Carbon buildup. Carbon will make your engine noisy. I would do a good intake cleaning with GM Top Engine Cleaner or Seafoam. Or you could do the water methoed, it works well too., Why I didn't include the Northstar on my infamous list., 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 ..., 158 posts · Joined 2005. #2 · Jan 10, 2007. If you're mechanically inclined they're not too bad, the access for the rear ones is a bit tight but not much once you get the plug wires out of the way, change them while you're there, the coil packs are numbered. Front bank is 2,4,6,8 rear bank is 1,3,5,7. The front cyls have the cyl #'s on the head., The main Northstar engine common problems are low oil pressure, carbon buildup, rear crankshaft seal, valve cover leaks, oil consumption, and blown head gaskets. The Northstar V8's life expectancy is around 200,000 miles or a bit more, but you will have to replace the head gasket at least once before that as it fails soon after 120,000 miles., 07-09 Cadillac XLR 4.6L Northstar V8 Engine Donor Liftout (50K) Unable To Test (For: Cadillac) Opens in a new window or tab. ... 04-05 Cadillac DeVille Water Pump Housing Northstar 4.6 12576705 GOOD USED (For: Cadillac) Opens in a new window or tab. Pre-Owned. $229.70. cadillackingdom (2,881) 99.5%. Buy It Now