Gm 3800

The Buick 231 cu. in. 3.8L V6 engine has had a production run lasting more than 30 years. Like the small block Chevy V8, this engine has undergone many changes over the years to keep it abreast of changing consumer expectations and emissions regulations. The first Buick 3.8L was offered in the 1975 model year Skyhawk, Apollo, Century and Regal.

Gm 3800. For this compound turbo/supercharging test, we retained the stock 3800 exhaust system, including the cast-iron manifold feeding the rear tubular exhaust. (Image/Richard Holdener) Run on the dyno with the stock blower pulley and stock exhaust (on E85), the supercharged 3800 produced 289 hp and 291 lb.-ft. of torque at a peak boost reading of 9.7 ...

The Buick 3800 V6 was so good that GM retired it 10 years beyond its initial 1999 estimate. Moreover, the numerous improvements over its decades-long lifespan have made it among the smoothest ...

ZZP 3800 Turbo Downpipe. from $249.99 from. UBend Delete. $49.99. ZZP Stainless Header Package. $1,099.99. 3" 04+ Grand Prix Stainless Catback Exhaust. from $799.99 from. 3" 97-03 Grand Prix Stainless Catback Exhaust. For parts Email us at [email protected] or visit www.Importapart.com!Here's weekly dose of your catastrophic engine forensics! Every week you can fi... 925 posts · Joined 2009. #1 · Dec 18, 2010. as you might know, the 3800 Series II v6 from GM has issues with it's plastic intake manifold.. the heat from the EGR 'stove' deteriorates the plastic over time and causes a coolant leak into the engine which eventually hydrolocks the engine when it's turned off (I just went down this road with …The Buick V6 is an OHV V6 engine developed by the Buick division of General Motors and first introduced in 1962. The engine was originally 198 cu in (3.2 L) and was marketed as the Fireball engine. GM continued to develop and refine the 3.8 L (230 cu in) V6, eventually and commonly referred to simply as the 3800, through numerous iterations.The GM 3800 Series II engine, introduced in 1995, is quite a different engine from its predecessor, the Series I engine. While the stroke for the 3.8L engine remained at 3.4” (86 mm), and the bore remained at 3.8” (97 mm), the engine architecture changed dramatically. The deck height is shorter than the Series I, which reduced its …The Buick-designed, 3.8L, 3800 V6 Series II engine first appeared in 1996 and continued in production as late as 2005 in some chassis. Most, like your Monte Carlo V6, were the normally aspirated ...Jun 22, 2023 ... 'BAD' GM 3800 L26 V6 Engine Teardown. Why Are These Engines SO GOOD? I ... What Makes the GM 3800 V6 One of the Best GM Engines?? Let's Find ...

1995-2003 Regal with 3800 Series II engine. 1995-2006 other applications with 3800 Series II or Series III engine ***. We are currently out of stock on all Yella Terra rocker sets for the Series II/III engines. Yella Terra is working on the next batch, which should be in the US by mid-March. You can still place orders for rocker sets, but ...Nov 22, 2002 ... SuperBuick. 12 posts. Member since Jul 2002. That is not necesarily true, I have been told be numerous Buick ...The Buick 231 cu. in. 3.8L V6 engine has had a production run lasting more than 30 years. Like the small block Chevy V8, this engine has undergone many changes over the years to keep it abreast of changing consumer expectations and emissions regulations. The first Buick 3.8L was offered in the 1975 model year Skyhawk, Apollo, … GM 3.8L SERIES II V6 INTAKE MANIFOLD INSTALLATION INSTRUCTIONS ATTENTION. Refer to the appropriate shop manual for your vehicle to obtain specific service procedures for this part. If you do not have a service manual or lack the skill to install this part, it is recommended that you seek the services of a qualified technician. 1995-2003 Regal with 3800 Series II engine. 1995-2006 other applications with 3800 Series II or Series III engine ***. We are currently out of stock on all Yella Terra rocker sets for the Series II/III engines. Yella Terra is working on the next batch, which should be in the US by mid-March. You can still place orders for rocker sets, but ...

GM 3800. INTENSE Racing leads the market in quality performance parts for 3800 Series II and Series III engines, often found in Grand Prix, Monte Carlo, Impala, Regal, Bonneville, Fiero, and Brunton Stalker vehicles.About none. Their V6 and transmission are good for maybe, maybe 200k. We had over a dozen regulars (LOF, tire rotation) with 3800’s that had well over 250,000 …GM-3800-II-Serpentine-Belt-Replacement-Guide-003 A pictures illustrated guide to replacing the serpentine (accessory) belt on a GM 3800 Series II 3.8L V6 equipped Pontiac Grand Prix.Making Big Power With A 3800 Series II * Part II: Tear It Down And Build It Up. News. Reviews. Buyer's Guide ... GM P/N 12539092. Supercharger gasket . GM P/N 24503911. Balancer to crankshaft bolt .

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Source: General Motors. Tags: Cooling, Crankshaft, engine sealing, Lubrication. Learn about the GM 3800 Series II engine, its architecture changes, …Fuel. Spark. When your GM 3.8L equipped vehicle cranks but does not start, it's because one of these components is missing from the mix. So, when testing the cause of your vehicle's no-start condition, you'll be doing specific tests to see if the problem is being caused by the fuel system, or the ignition system, or the engine mechanical system.Mar 15, 2024 · The Buick 3800 engine is a V6 engine with a displacement of 3.8 liters. It features a cast iron block and cylinder heads, providing excellent strength and durability. The engine is equipped with a sequential fuel injection system, ensuring precise fuel delivery for optimal performance. I've created this site to be a gathering of tons of information from across a lot of the 3800 forums. This whole entire website was created to collect and document any information about the 3800 that is possible. As far as I know, this is the first wiki site dedicated completely to one engine.The Buick 231 cu. in. 3.8L V6 engine has had a production run lasting more than 30 years. Like the small block Chevy V8, this engine has undergone many changes over the years to keep it abreast of changing consumer expectations and emissions regulations. The first Buick 3.8L was offered in the 1975 model year Skyhawk, Apollo, …Learn about the history, specs, and performance of the Buick 3800 V6 engine, a versatile and efficient engine that powered many GM cars from 1975 to 1990. Find out how the 3800 evolved from a naturally aspirated V6 to a turbocharged V6 and how it was used in different models and variants.

Mar 19, 2013 ... Found this on a Jeep website (Google is your friend): Some RWD transmission info for the 3800 L67: The L67 and other GM engines with the 60 deg ...Apr 17, 2014. #15. My '00 Impala LS 3800 was changed over to PP10w30 from conventional and ran 95,000 miles on synthetic alone. Recently I switched back to PYB 10w30 and it does seem to be quieter on conventional. It has 228,000 miles on it and leaks 1/4qt. every 5500 miles around the oil pan gasket.The Buick-designed, 3.8L, 3800 V6 Series II engine first appeared in 1996 and continued in production as late as 2005 in some chassis. Most, like your Monte …If you have recently purchased a General Motors vehicle and it is having a problem, you may be wondering if your truck has a warranty that will cover repairs. There are several di...For this compound turbo/supercharging test, we retained the stock 3800 exhaust system, including the cast-iron manifold feeding the rear tubular exhaust. (Image/Richard Holdener) Run on the dyno with the stock blower pulley and stock exhaust (on E85), the supercharged 3800 produced 289 hp and 291 lb.-ft. of torque at a peak boost reading of 9.7 ...I’ve researched 3800s for a while now and know a good bit but is there anyway to swap an L67 Series II in a 94 Buick Regal Gran Sport Coupe. I know I can swap the L67 Series I in it since they use the same trans. It’s hard to find a Supercharged 3800 in my area for lower than $3,000 and when I... 0 33 _Buickmaster_ replied 16h ago. The supercharged Buick 3800 is now common in wrecking yards for just a few bucks. It would be a wonderful alternative to all the SBC engines used in hot rods everywhere if someone like yourself could explain how a Buick 3800 could be installed in a RWD configuration using production GM parts where possible. Thank you again for a great webpage. OWNERS SHOULD CONTACT BUICK AT 1-866-608-8080, OLDSMOBILE AT 1-800-630-6537, OR PONTIAC AT 1-800-620-7668. Recall Summary. ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 3800 V6 (L36) ENGINES AND CERTAIN DELPHI FUEL PRESSURE REGULATORS, THE REGULATORS HAVE A MUCH …there are a quite a few of these engines over here because what you have is the 3.8 lt holden commodore engine which is exported to gm in the us ...

The GM 3800 Series 2 engine features a 3.8-liter displacement and is available in both naturally aspirated and supercharged versions. The engine is known for its durability and longevity, making it a popular choice among car enthusiasts and mechanics. It has been used in a variety of GM vehicles, including the Buick Regal, Chevrolet Impala, and ...

Cylinder Layout. The GM 3800 Series 2 engine is a V6 engine, which means it has six cylinders arranged in a V-shaped configuration. The engine has a displacement of 3.8 liters, with each cylinder having a displacement of approximately 633.33cc. The cylinder layout of the GM 3800 Series 2 engine follows a specific firing order, which is crucial ... ZZP 3800 GT Camshafts. ZZP's GT camshafts currently hold all the horsepower and ET records for naturally aspirated L36s. Anytime you upgrade the camshaft from the stock one, we highly recommend running either Comp Cams or Crow Cams 105# valve spring, or the very common LS 90 lb valve spring, along with ZZP Modified retainers, LS7 lifters, ZZP ... Today the Buick Regal Getts a new aluminum intake from a series 3 3800.To see products featured in my videos check out my amazon store here:https://www.amazo...GM 3800 Series II 3.8L V6: New Dayco Serpentine Belt : Belt Routing Diagrams : After redlining the engine through a turn a few days ago, I heard a series of loud noises coming from the engine bay. I popped the hood and saw that nearly half of the serpentine belt had broken off. Luckily, the other half of the "accessory" belt held together long ...444 posts · Joined 2004. #8 · Jun 15, 2006. the 4l80 will not bolt up to the motor. you can get a 4l60E from rossler trans with a trans brake for about $3000. look into yank or PI for stalls. 11.23 1.838 60 foot -- new F-body …Dec 23, 2004 · One of the best examples of the evolution of a sound concept is the General Motors 3.8 litre V-6, now called the 3800 Series, that currently powers some mid-size and large GM models. Although now past its 40th birthday, beyond retirement for most engines, the 3800 just seems to get better, whether in naturally aspirated or supercharged form. Step 4: Wait for coolant to drain and consume beverage of choice. Step 5: Disconnect both heater hoses from the alt bracket. Step 6: Hook up garden hose to upper radiator hose. Step 7: Start flushing COLD water through the system. Step 8: Watch for water to change to clear out of the knock sensor hole.Let me count the 3800 ways. In 1989, I was getting married and was in the market for a newer, better car. A co-worker had a 1989 Pontiac Bonneville and told me how well he liked it. I looked it over one day, took it for a ride, and decided that this was the next car I would get. I located a former GM executive car that had only 3,000 miles.GM 3800. INTENSE Racing leads the market in quality performance parts for 3800 Series II and Series III engines, often found in Grand Prix, Monte Carlo, Impala, Regal, Bonneville, Fiero, and Brunton Stalker vehicles.ZZP Hydraulic Roller Lifters - 3800. Price $109 99. Secure payments. In stock, ready to ship. Add to cart. ADD TO WISHLIST. After 2 years of severe testing in the LS market, we are releasing these in the 3800 market as our high performance lifter, superior to the common LS7 lifter that we also sell. We have had many customers tell us they work ...

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Home » Featured Items » INTENSE™ Supercharged/Blower 3800 Camshafts. INTENSE™ Supercharged/Blower 3800 Camshafts. $294.99. Part Number: CAM-67x. Shipping Weight: 6.30 pounds. 0 Customer Reviews. Be the first to write a customer review. 2 in stock. Please select your camshaft: The supercharged Buick 3800 is now common in wrecking yards for just a few bucks. It would be a wonderful alternative to all the SBC engines used in hot rods everywhere if someone like yourself could explain how a Buick 3800 could be installed in a RWD configuration using production GM parts where possible. Thank you again for a great webpage. These header flanges are designed for the Buick 3800 Series II V-6. Port Size: 1 1/2", 1 5/8", and 1 3/4" round ports available. We carry over 300 different flange designs, if you don't see something you need, or for any questions, give one of our specialists a call at 1-800-290-3920. Custom flange designs and one-off laser cutting on header ... The Buick 3800 supercharged also uses a different bellhousing bolt pattern than the earlier engines. I'm pretty sure that it is the same as all ...The Buick 3800 is one of the most reliable engines that GM ever built. It existed in several forms for a few decades under various names before a revamp of the engine in 1988 officially gave it ...1999 Chevrolet Corvette Convertible. 60,709 mi • 8 Cylinder Engine • Torch Red. $ 17,997. 1999 Corvette Convertible. Torch Red/ Black Leather Sport Seats/ Black Top. 345 HP LS1, Automatic, Magnetic Selective Ride Control Suspension, Active Handling, P/ Telescope Steering Column, Tw…. Jerry's Chevrolet of Beresford.The Buick-designed, 3.8L, 3800 V6 Series II engine first appeared in 1996 and continued in production as late as 2005 in some chassis. Most, like your Monte Carlo V6, were the normally aspirated ...According to GM, there has been a running design change in the crankshaft balancer. This change affects 3800 engines built late in the 1995 model year (L27 and L36) and all of 1996 model year (L36 and L67). Refer to the appropriate section in the service manual if you have the previous design crankshaft balancer.The fifth gen M90 was developed in 1996, but didn’t appear in production until the 2004 and 2005 Grand Prix GTP and GTP CompG with Series III 3800 engine and 4T65E-HD transaxle. For 2006 and …In 1976 the LeSabre was huge at 227 inches and 4200 pounds! The 3.8L made 110 horsepower. The first American V-6 was introduced by Buick for 1962. It was simply a Buick V-8 with two cylinders chopped off. So, actually the 3800 can be traced all the way back to 1953 when Buick made their first V-8. Buick's final turbocharged V-6 was built in ... ….

For parts Email us at [email protected] or visit www.Importapart.com!Here's weekly dose of your catastrophic engine forensics! Every week you can fi...It just didn't have enough go for me!! After doing tons of research I decided to go with a GM 3800 supercharged engine. One of the deciding factors of going with the 3800 was that it will bolt to the stock 30RH (904) transmission. Before you go bashing the 904 for its durability remember Chrylser used this transmission from 1960 on in all LA ...910685. General Motors has developed a supercharged version of its 3800 V-6 engine. It utilizes a Roots type supercharger mounted in the Vee of the engine, attached directly to the intake manifold. This engine provides increased performance with an excellent balance of fuel economy, as well as a high level of pleasability and reliability.Jul 28, 2019 · The 🧙‍♂️ CAR WIZARD shares his reasons for why the Buick 3800 V6 is the absolute BEST engine ever made.🎬 Watch CAR ISSUES with Tyler Hoover (and the Car Wi... 925 posts · Joined 2009. #1 · Dec 18, 2010. as you might know, the 3800 Series II v6 from GM has issues with it's plastic intake manifold.. the heat from the EGR 'stove' deteriorates the plastic over time and causes a coolant leak into the engine which eventually hydrolocks the engine when it's turned off (I just went down this road with …2014 posts · Joined 2004. #2 · Dec 17, 2022. Wow, nice low mileage find! The concern may be that the good odometer reading makes people ignore some necessary upkeep/maintenance still required after 15yrs and various known items to keep 3800's happy for the long haul. Gaskets compromised on the top-side of the engine may be the …The Buick 3800 is an interesting little motor with a long and fascinating history. It began life in the 1960s as an aluminum V8 but when they needed smaller engine in a hurry for the compact Buick Special (Skylark), they chopped two cylinders off and made it out of cast iron, giving us the beginnings of the the Buick V6 we know today and the ...Pontiac Borrows A Beast. For 1988, the Buick Regal went the route of the Riviera before it and transitioned to a new platform (also front-wheel drive) that left the 3.8 turbo V6 on the shelf. Still, the motor itself had one last shot at dazzling muscle car fans when it appeared between the front fenders of the 1989 Pontiac 20th Anniversary ...Answer: In most cars, the vehicle speed sensor is located in the tail shaft housing of the transmission. This is where the axle comes out on the passenger side of the trans. On front wheel drive cars. Best viewed from under the car. Where is the map sensor on this 3800 GM v6? The MAP sensor is located in position 7 on the picture above.May 12, 2009 · The GM 3800 Series II engine, introduced in 1995, is quite a different engine from its predecessor, the Series I engine. While the stroke for the 3.8L engine remained at 3.4” (86 mm), and the bore remained at 3.8” (97 mm), the engine architecture changed dramatically. The deck height is shorter than the Series I, which reduced its weight ... Gm 3800, The GM 3800 is a common "crate" -- or replacement -- engine for Chevrolets. General Motors used the 3.8-liter V-6 for rear-wheel-drive cars, but it developed a variant of the 3.8 for 1984-to-1988 front wheel-drive cars. Throttle-body fuel injection arrived in 1984 and a multiport fuel injection system became available in 1986., The GM 3800 V6 Engine. For those unfamiliar with the GM powerplant, you can think of the 3800 V6 as the replacement for the turbocharged (and legendary) 3.8L Grand National motor. Better in almost every way, the 3800 V6 offered improved head flow and a hydraulic roller cam, but ditched the intercooled turbo for an Eaton M90 supercharger., Learn about the history, specs, and performance of the Buick 3800 V6 engine, a versatile and efficient engine that powered many GM cars from 1975 to 1990. Find out how the 3800 evolved from a naturally aspirated V6 to a turbocharged V6 and how it was used in different models and variants., Overview: This guide covers removal and reinstallation of both the Harmonic Balancer and Crankshaft Position Sensor on a Series II/Series III 3800. Tools Required: 24mm socket for the crank bolt, 19mm socket for the lug nuts, 18mm socket for the subframe bolts, 15mm/belt tool for the belts, 13mm socket for the crank position sensor bolts, …, For the high-speed railway line in France, see LGV Nord .The Buick V6, popularly referred to as the 3800, originally 198 cu in (3.2 L) and initially marketed as Fireball at its introduction in 1962, was a large V6 engine used by General Motors. The block is made of cast iron and all use two-valve-per-cylinder iron heads, actuated by pushrods. , The Buick 231 cu. in. 3.8L V6 engine has had a production run lasting more than 30 years. Like the small block Chevy V8, this engine has undergone many changes over the years to keep it abreast of changing consumer expectations and emissions regulations. The first Buick 3.8L was offered in the 1975 model year Skyhawk, Apollo, …, The heart of the Oldsmobile LSS was GM’s Buick 3800 V6, an engine known for being practically bulletproof. The 3800 is one of those engines that you’d think will …, The Buick-designed, 3.8L, 3800 V6 Series II engine first appeared in 1996 and continued in production as late as 2005 in some chassis. Most, like your Monte Carlo V6, were the normally aspirated ..., GM continued to develop and refine the 3.8 L (230 cu in) V6, eventually and commonly referred to simply as the 3800, through numerous iterations. The 3800 made the Ward's 10 Best Engines of the 20th Century list and made Ward's yearly 10 Best list numerous times. See more, A forum community dedicated to all General Motors makes and models owners and enthusiasts running the 3800 series engine. Come join the discussion about performance, modifications, classifieds, troubleshooting, builds, tunes, superchargers, maintenance, and more! , GM 3800 Eaton M90 Gen3. Rotor Coating. Pulley Choice. Quantity. Add to Cart. (314)277-8495 The High Speed Lab supercharger shop, for factory and aftermarket Eaton supercharger sales, professional rebuild services, kits and parts, with 3 decades experience re-manufacturing the Eaton Rotor Assembly., A forum community dedicated to all General Motors makes and models owners and enthusiasts running the 3800 series engine. Come join the discussion about performance, modifications, classifieds, troubleshooting, builds, tunes, superchargers, maintenance, and more! , 925 posts · Joined 2009. #1 · Dec 18, 2010. as you might know, the 3800 Series II v6 from GM has issues with it's plastic intake manifold.. the heat from the EGR 'stove' deteriorates the plastic over time and causes a coolant leak into the engine which eventually hydrolocks the engine when it's turned off (I just went down this road with …, Nov 27, 2020 ... I was asked to do a video on the 3800 and it's history. here it is. Become a patreon and support my channel here: ..., Applications include the 2004-’08 Pontiac Grand Prix, 2005-’08 Buick LaCrosse and 2006-’08 Buick Lucerne. An L32 Supercharged Series III 3800 also is introduced, rated at 260 hp in the Pontiac Grand Prix GT and GTP. 2008 — End of the road for the 3800. Production will cease this year, with the 3800 being retired to the big …, The Buick 3800 engine is a V6 engine with a displacement of 3.8 liters. It features a cast iron block and cylinder heads, providing excellent strength and durability. The engine is equipped with a sequential fuel injection system, ensuring precise fuel delivery for optimal performance., A recent engine teardown video from I Do Cars on YouTube examines the effects on a Series III 3800, the ultimate evolution of GM's enduring 3.8-liter six-pot that had its origins in the 1960s., Sep 8, 2013 · Sep 8, 2013. #1. Somebody asked, and now we're delivering. This thread is to discuss the differences between the FWD & RWD GM 3800's. Their small, compact design can make them a great option for swapping into a Volvo chassis. They're heavy though, so not a good option for a track car, but they can make significant power on stock bottom ends. , Originally Posted By: Merkava_4 GM 3800 V6 = MaxLife 10W-30. Plain and simple. Or any 10W-30. Though that is a fine oil there. You could put 5W-30 if you wish, but 10W-30 is what it was built for. MY 1992 onward. And that is true for the 3800 in series I, II, or III. The last Series III 3800 in now-defunct Pontiac Grand Prix was a powerhouse ..., 1) disconnect the ECT. 2) connect resistances 1400, 93, and 55 ohms in turn and observe guage. 3) guage should read min, mid, and max temperature. This tested out just fine. 1400 ohms is for 40°C, and the min in the guage is 40°C. 93 ohms is for 120°C, and the exact mid positon is 120°C. Likewise for the max., INTENSE™ Cams are manufactured from new 8660 billet camshaft blanks by Cam Motion. These are the cams for those of you planning to run turbo setups on your 3800 Series II/III engines. The Stage 1X Turbocharged Cam is ideal for use with stock cylinder heads, however stronger springs are recommended for reliability., The 3800 Series II engine is a very reliable, efficient, smooth, durable and reliable engine as pushrods go. The alternator issues with the old 3.8L GM engines is no longer case. Now it seems the new host of chronic alternator eating is the Olds 3.5L DOHC V6 engine. Current 3800 Series II V6 engines are ULEV certified since the 2000 model year., RYD SLO said: Credit to g25racer, who found this awesome reference with instructions on how to test for many different issues on the GM 3800 engine. Part 1 -GM 3.8L Index of Articles. Edit: addition of 3400 info here! Part 1 -GM 3.1L, 3.4L Index of Articles. Click to expand... Thank You on my way to diagnose it on my '04 Indy SS., The GM 3800 engine is one of the most successful and durable engines in automotive history. It was produced by General Motors from 1975 to 2008, and powered millions of vehicles from various brands, such as Buick, Chevrolet, Pontiac, Oldsmobile, and others. , The 3800 was developed from Buick’s old V6 engines and became the 3.8L V6 in the early 80’s, that engine had some issues which were fixed with the new Series I 3800 V6., Tesla's market capitalization was roughly $89 billion at Wednesday's close, $2 billion higher than the market values of Ford and GM combined. Jump to Tesla's recent stock rally has..., Sep 28, 2014 ... That said try disconnecting the MAF sensor electrical connector and try to start. You might get lucky. Bill you missed your calling you should ..., Mar 15, 2024 · The Buick 3800 engine is a V6 engine with a displacement of 3.8 liters. It features a cast iron block and cylinder heads, providing excellent strength and durability. The engine is equipped with a sequential fuel injection system, ensuring precise fuel delivery for optimal performance. , The GM 3800 V6 may be one of the best engines from the Michigan-based manufacturer's portfolio, but it can go haywire, too, like any other reliable engine.This particular example from a 2006 ..., Built in GM's Flint, Mich., V-6 engine plant, the 3800 has a heavy cast-iron block and uses pushrods to operate the valves. GM's new generation of 2.8- and 3.6 …, One of the best examples of the evolution of a sound concept is the General Motors 3.8 litre V-6, now called the 3800 Series, that currently powers some mid-size and large GM models. Although now past its 40th birthday, beyond retirement for most engines, the 3800 just seems to get better, whether in naturally aspirated or supercharged form., The 3800 V6 engine has been featured in various GM models, such as the Buick Park Avenue, Chevrolet Impala, and Pontiac Bonneville. Is The 3800 V6 Engine Reliable? Yes, the 3800 V6 engine is known for its reliability and longevity, often reaching over 200,000 miles with proper maintenance., The fifth gen M90 was developed in 1996, but didn’t appear in production until the 2004 and 2005 Grand Prix GTP and GTP CompG with Series III 3800 engine and 4T65E-HD transaxle. For 2006 and …