Powertrain

simple. one would think that relying on gears instead of chain could improve cam performance and timing. gears may require more power to run and have more friction. wear may be an issue as well. I am only aware of one engine that i know of that had gear driven overhead cam. Honda produced a VFR interceptor motorcycle that had it for awhile. It apparently was a strong performer. I am not certain how this worked over time. Remember, Honda had oval pistons in some bikes too. what does anyone know regarding gear driven cams and any advantages / disadvantages? Mostly I am thinking in the context of an OHC or DOHC motor. Wouldn't this eliminate timing chain or belt…

We all know all or almost all the GMT900s will get the new 6-speed autos. Everyone says 2008, they need to build up inventory. Do we know for a fact this is the plan. Is is safe to say that all or almost all GMT900s will get them in 2008 or will it be select like it was for 2007, maybe limited to LTs or SLTs, or to the 5.3 but not the 4.8? The GMT355s are another story. They need them too, but I won't go into that. I think this is the only thing "lacking" with the GM trucks. It's public perception not to mention help mileage a little and improve their quickness. If anyone has some insight of what the plan is, it would be greatly appreciated.

GM Daewoo Celebrates Production of 10 Millionth Engine, Start of Production of New Ecotec Gen Ⅲ Engine Press Release Seoul — GM Daewoo Auto & Technology (GM Daewoo) held a ceremony today at its Bupyeong headquarters to celebrate the production of the automaker's 10 millionth engine and the start of production of its new Ecotec Gen Ⅲ family of engines. “The production of our 10 millionth engine serves as an important milestone,” said GM Daewoo President and CEO Michael A. Grimaldi. “It confirms how far the domestic automotive industry has come and the important role that Korea and GM Daewoo are playing in the global industry.” Road to 10 Million Engines GM Da…

Since the Eco has been out for a while now ( Saturns, Cavaliers)...I was curious-do you feel it is a good engine ? (overall) I would have to say yes, at least for me. NO issues at all with mine, though it only has 35k on it now... Guy I work with has 120k on his 03 Cavalier w/ the eco. No issues at all-still runs well-burns a tiny bit of oil. Not bad for a beat on car. Neighbor is a sales rep. Has almost 90k on his Cobalt. Speedo just stopped working, but his engine is holding up well too... So far so good...

link here

Testing GM's `Sequel' Fuel-cell concept vehicle peppy, smooth, silent But fuel tanks, batteries make it unusually heavy Sep. 25, 2006. 01:00 AM LINDSAY BROOKE NEW YORK TIMES NEW YORK—If an afternoon behind the wheel of General Motors' latest prototype hydrogen fuel-cell vehicle, the Sequel, is any indication, powertrains of the future will not feel much different from the engines that drive today's cars and trucks. By a seat-of-the-pants evaluation, the Sequel feels reasonably peppy; acceleration is smooth and nearly silent. And it is capable of reaching 90 miles an hour, said Mohsen Shabana, chief engineer for the Sequel program and my passenger. More important…

I have a rented Monte Carlo for the Easter weekend with a OHV V6 with VVT (variable valve timing). Both the 3500 and 3900 in the MC/Impala have VVT as of this year. How does this system work? Is it an electronic chip? Can it be expected to function trouble free for a long time? The whole concept sounds complicated. Care to shed light on VVT if you know it /understand it?

doesn't the aura have a ~224hp 3.5L base engine right? that's ~13 hp over the impala, so can they (re)tune the 3.9L for more like 250 easily if they wanted? or did gm just move the torque up the powerband to have a HO 3.5L for saturn?

GM Celebrates One-Millionth Duramax Diesel DAYTON, Ohio – General Motors Corp. (GM) announced today the production of its one-millionth Duramax V-8 turbo-diesel engine at the DMAX plant in Moraine. DMAX Ltd., a joint venture between GM and Isuzu Motors Limited, was established as a diesel engine company in 1998. GM first introduced the Duramax diesel in the U.S. in the 2001 model year and since then, customer enthusiasm for this heavy duty diesel has been outstanding. In fact, GM’s heavy duty diesel pickup market share has jumped nearly tenfold in the six years that Duramax engines have been offered. “Our Duramax diesel is one of the best in the industry,” said John…

http://www.autoblog.com/2009/02/19/ls9-cra...than-most-cars/

Here's an in depth presentation on the LT1 Pushrod V8 by its Chief Engineer Tadge Juechter. http://media.gm.com/dld/content/Pages/presskits/us/en/Chevrolet/gen5/_jcr_content/rightpar/sectioncontainer_1/par/download/file.res/LT1%20presentation%2024OC12a.pdf This is an official GM press kit distribution; all relevant copyrights and fair usage etiquette apply. In short, the information is public domain and you may quote it or share it. But, you may not claim it as your own, you may not modify it or distort the information, and you may not use it to sell a commercial product.

The Volt is due soon and will be the top dog in GM's hybrid arsenal. Prior BAS hybrids didn't make positive market vibes, although BAS potential is good if they do it right. Vue two mode was dead. will it come back? The pickup hybrids haven't sold as well as they wanted. No Converj. Big deal? Which of GM's models would be best suited for hybrids from marketability standpoint? Even the Prius needs cheap leases to move the metal now with Toyota. Other Toyota hybrids and the Insight and such have not been taking the market by storm. GM hybrids, what's next?

Could, in theory, the supercharger from the 2.0L S/C Ecotec (Cobalt SC/SS, Ion Redline, et. al.), or any of the aftermarket stage 2 or stage 3's meant ofr the S/C 2.0L fit on the N/A 2.2 or 2.4 Ecotecs with very little or no modification to the mount points or TB? I would assume that all the Ecotec engines are the same on the outside, and that a retrofit installation would be somewhat direct. Are there differences in the throttle bodies and mount points that would prevent this?

The 2.0 Liter LNF is a nice little engine in turbocharged form. But as a base engine on a small car like the upcoming Cruze it may not exactly be the right prescription. However, the 2.0 liter block can form the basis of a nice little engine designed for economy instead of performance. And one of the ways we can optimize it for gas sipping duty is to incorporate Part-Time Atkinson Cycle operation using cam switching hardware already tested on the HCCI concept 2.2 engines. Since the engine block and most components are shared with the LNF it also reduces costs and inventory if the vehicle will also have a turbocharged high performance stable mate. Atkinson Cycle (and i…

diesel info Low NVH for New Duramax 4500GM's new light-duty diesel to be quiet, clean By RICHARD TRUETT | AUTOMOTIVE NEWS AutoWeek | Updated: 07/16/07, 11:16 am et DETROIT -- The 4.5-liter turbocharged diesel engine that General Motors plans to introduce in 2010 in light-duty pickups will have breakthrough technology in emissions and noise reduction, says the engine's assistant chief engineer, Jim Minneker. The new diesel is being designed to meet the most stringent federal and California emissions standards and will be available in all 50 states, Minneker said. It will use a urea injection system to control oxides of nitrogen, or NOx. But GM won't be part of th…

will the larger atlas 4 and 5 cyliders mean a larger 6, more to about 4.4L? and would this make closer to the tune of 310hp and roughly 290ft-lbs? factoring DI in, would this make the base v-8 ( 4.8L ) not needed at all? other than the silverado and other gmt 900's, any other possibilities of this engine configuration? any insider have any info along these lines?

any real news about when this is going to be decreased significatly? 3.4L, maybe 08 will be the last year? 3.5L, be around till EP2 at least 3.8L, be fazed out after LaX dies on w-body? 3.9L, maybe dead after impala w-body dies? 4.3L, other than being the only v6 still with a manual option, why? i would like to see GM make one v-6 to the best standards it could, comparable to an LSx motor in output/cu.in.

courtesy of Texas Speed & Performance:

OK, so whos got it ? Is it worth it ? Switching to a 3 cyl ? I hear roughness, out of balance and vibration ? I really believe its time to leave this V6 behind and build small alloy HF V8's in the 3-4 litre displacements. There is no time like now to begin the process, hell the R&D is nearly done with the HF V6's and OHC V8's it just needs to be applied to small displacement, small dimension & weight V8's. Everyone is crying for something class leading, who else is more qualified than GM and who else has silky smooth, small displacement v8's other than the exotics ? OK, so shoot me, but tell me what you think first ?

So when do you think the next northstar will come out and what do you think it will be rated at? The HO 3.6 got a 25 hp boost from new heads and some better breathing. its said to get up to a 15 percent power increase from DI. that 25 hp from the new head is about a 10 percent increase and with a 15 percent Di bump the 275 hp 3.6 would put out an impressive 316hp. So a better breathing northstar with a 10 percent boost would be 352 hp and that increased by 15 percent by DI would be 405 hp. Thats pretty high and I would love to see that out of an NA northstar in the "new" STS but I dont think thats going to happen or be quite that high when it does come out. What…

I have a gm transmission that appears to be some type of 350 turbo it is marked with an MV3. I am trying to rebuild this tranny but cant seem to find these letter designations. Any help or info is greatly appreciated.

Thought I'd put that back up ^_^

And that one ;)

Well, with the recent press release about the 3.6L HF V6 w/DI, discussion arose about what GM would do with the Northstar. If the same percentage gains are made on the Northstar as on the 3.6L HF V6, the Northstar would deliever approximately 370HP and 340 lb-ft without any other modifications. I'm sure with a few more tweaks it could be up to 380HP and 350 lb-ft. So, if a DI Northstar made 380/350, does everyone think this would be sufficient or should GM develop a new DOHC V8 for Cadillacs and Buicks?

Popular mechanics just came in today, says that "GM will show an HCCI next year" thoughts?

Okay I need help.I just picked up my Chebey 900 crew yesterday.Traded my Honda Ridgeline because of driveline issues and poor milage.Being a GM retiree I felt criminal in the Honda.So far the 900 is more than I thought.I've got the flex fuel 5.3 with the 342 for milage with 20" Texas Edition wheels. Now being a farm hick I know to pull I need a .410 or at least a .373 rear end.I am going to pull occasionaly a 3000# cargo trailer but usually I'll use the truck as a car.What I'm looking for here are some words of confidence that the truck will give me good milage and pull my trailer when I need to.This looks like a great forum and I feel like I'm home again.

Unfortunately buying a brand new Buick is out of the question for me at the moment. I have been doing some used car shopping and found a 2003 Century that seems great. Like all Century's it has the 3100 V6. Can anyone give me some feedback on this motor? I have had other vehicles that have the old tried and true 3800... is the 3100 as good? I haven't been able to find a whole lot of info (good or bad) on it.

Yeah, couldn't think of the code for the NA version (the SC is the L67). Anyway, what are the differences between the two? I know the L67 is supercharged and only fits in GPs, but are there any forged internals? In other words, could you pretty much take a regular NA 3.8 Series II Grand Prix and throw on an M90 supercharger (andthe spark plugs and all that) and have an L67 right there? Or is there more to it? Just curious. Thanks in advance.

Last year on GM's powertrain site there was a reference to a new GM designed six speed manual transmission for rear wheel drive cehicles that would share parts with the existing 6 speed automatic. Does anyone know anything about the status of this? Is it still going to happen or not? Found a reference to it here: http://www.findarticles.com/p/articles/mi_...83/ai_106733133

before it's mass produced: could we see VVT like the 08 viper's engine? 3v/cylinder? potent closer to 350+hp and ~320lbft? *dreaming* a 3.2L (just a number gm hasn't made for OHV, in usa) or 3.7L (lop off 2 cylinders) V6 giving ~250HP or ~290hp respectivly and +1-2 MPG over current OHV v6 engines with ~6.5K redlines or turboed for 330hp / 360 hp just rough estimates (not using a calc for power gains) are we still going to have to wait for 3+ years for this v8 or will this tech be pushed up? ...maybe 2 years from now?

Flint, MI — General Motors Chairman and Chief Executive Officer Rick Wagoner today announced that the company will invest $370 million in the U.S. to build a new manufacturing plant for its global 4-cylinder engines in Flint, Mich. The plant will begin production in the U.S. in 2010, and will be the exclusive manufacturing facility in North America to produce the Chevrolet Volt's range extending engine. The investment in Flint is one of several that have been announced at U.S. plants in the past 10 years, adding up to over a $9 billion total investment in Michigan and more than $42 billion in the United States. … Full releases, photos and video at AutoReport Family …

Larger-Displacement 2.9L and 3.7L Vortec Inline Engines Deliver More Power PONTIAC, Mich. - For the 2007 model year, GM's popular midsize trucks - Chevrolet Colorado and GMC Canyon - as well as the HUMMER H3 SUV, feature new, larger-displacement inline four- and five-cylinder engines. The new Vortec 2.9L I-4 and Vortec 3.7L I-5 deliver more horsepower and torque than the engines they replace, giving the vehicles increased performance. The Vortec 2.9L DOHC four-cylinder with variable valve timing (VVT) replaces the previous 2.8L four-cylinder and delivers 185 horsepower (138 kW) and 190 lb.-ft. of torque (258 Nm).* The Vortec 3.7L DOHC five-cylinder with VVT replaces t…

GM's 3.9L V-6 Family Grows With E85-Capable And Fuel-Saving Active Fuel Management™ Versions Chicago, IL. - Today at the Midwest Automotive Media Association meeting Ed Peper, General Manager, Chevrolet, announced General Motor's first V-6 application of fuel-saving Active Fuel Management™ on the 3.9L V-6 offered in the 2007 Chevy Impala, and E85 ethanol fuel capability on the 3.9L V-6 offered in the '07 Chevy Uplander. "The application of Active Fuel Management™ (AFM) and E85 ethanol offers customers more choices when it comes to selecting efficient, fuel-conscious vehicles," said Peper. "E85 fuel reduces the need for petroleum and helps reduce greenhouse gas emissio…

Should the Corvette abandon the V8 for an I6? Or, maybe, its Camaro little brother should? Although the Corvette is most identified with a V8 -- more specifically various iterations of the small block V8 -- it started life with an I6. Now that first Corvette wasn't very good, but fundamentally an Inline-6 is a smoother and more refined engine configuration than a V8. The I6 and H engines are the only ones with zero 1st and 2nd order vibrations. It also allows contemporary technology such as VVT phasers to be incorporated with half as many actuators as a V-layout because it has half as many camshafts. The I6 is also fundamentally stronger than a V8 because it has seven ma…

what is the best way to rebuild a 305 with more horse power the motor now has 170000 miles on it and when i hit the gas the oil pressure drops instead of getting higher and i want more horsepower

General Motors will inaugurate its newly built engine plant at Talegon on November12th 2010. The new flexi-engine plant, is the first of its kind and can produce both petrol and diesel engines. The commercial production of the New Talegon Engine Plant will commence on November 1st of this year. GM has invested $230 million in this plant which has the annual capacity of 1.6 lakh engines. GM's new engine plant will manufacture four engine variants. The first engine variant will be a 1 L engine that will power GM's Beat car. Beat will be the first car model to get a locally made diesel engine from GM. Chevrolet Beat diesel will be launched during the first quarter of next …

I have a 2000 Pontiac Montana and a few weeks ago my transmission (4T65E) failed so I replaced it with a transmission out of a 2003 Pontiac Aztec. As far as I can tell the final drive / gear ratios are the same, but I could be mistaken. I am getting a fault code of P1810 (TFP position sensor) from the PCM and it is also getting torque lockup occasionally. Apparently sometime in 2002 the TFP assembly was updated (TSB #020730050) and I am concerned that my PCM need to be reprogrammed to accommodate this change. The transmission is in what I presume limp mode and I don’t get top gear. Although on one particular day (just as the first fault code first registered) it w…

How do you pronounce "Ecotec"? Is it E-Co-Tech (like, ecological technology) or Echo-tech (like, I dunno what the heck that would mean). I've always said it the first way, but I've heard people pronounce it the second way. Which (if either) is correct?

I found this in the Powertrain guides... ------------------------------- Northstar 4.6L V8 4565 cc / 279 ci DOHC 4 valves/cyl 275 HP @ 5600 RPM 290 lb-ft @ 4400 RPM Buick Lucerne LD8 Northstar 4.6L V8 4565 cc / 279 ci DOHC 4 valves/cyl 275 HP @ 5200 RPM 292 lb-ft @ 4400 RPM Cadillac DTS LD8 Northstar 4.6L V8 4565 cc / 279 ci DOHC 4 valves/cyl 291 HP @ 6000 RPM 286 lb-ft @ 4400 RPM Cadillac DTS L37 Northstar 4.6L V8 4565 cc / 279 ci DOHC 4 valves/cyl 320 HP @ 6400 RPM 315 lb-ft @ 4400 RPM Cadillac SRX, Cadillac STS LH2 Northstar 4.6L V8 4565 cc / 279 ci DOHC 4 valves/cyl 320 HP @ 6400 RPM 310 lb-ft @ 4400 RPM Cadillac XLR LH2 -------------------------…

Slipstream Drive The Slipstream Drive is primary propulsion pack for the Chevrolet Slipstream diesel-electric hybrid. It combines the most efficient internal combustion engine with innovative energy recovery measures to achieve a 75 mpg fuel efficiency target without the inconvenience of a plug in. The power train is also designed from the outset to be roughly half the cost of the Voltec powertrain – through halving the number of electric motors and quartering the battery capacity. The Slipstream drive is designed to be more refined than conventional diesel propulsion by eliminating idle operation of the diesel engine. The diesel engine is coupled directly to the 9-sp…

So, I just had my battery replaced in my 2000 Pontiac Grand Prix with the 3800 in it and my SES light came on. How long should it take for the computer to reset? Or is there a way i can find the code to see if there really is something wrong with my car? I made sure the gas cap was nice and tight.

There has been much talk about a GM Turbo Six. Here’s how I feel it should be built:- V6 DI Twin-Turbo 3.2 liters engine built using as many off-the-shelf components as possible Engine block from 3.0 DI V6 (LF1) Crank and rods from 3.6 DI V6 (LLT) High efficiency turbochargers optimized for flow. Moderate Boost, High Compression Air-to-water intercooler to avoid bulky air hoses, intercoolers and minimize pressurized volume Specifications:- Valvetrain: Chain driven DOHC 4-valves/cyl w/intake & exhaust VVT Fuel Injection: Homogeneous Charge Direct Gasoline Injection Bore x Stroke: 89 x 85.6 mm (LF1 Bore x LLT Stroke) Capacity: 3195…

just as a fun/funny thought. why not? a 2.8L v8 twin turbo with ~300 hp and torque, maybe a tad more than that if it was not tuned for economy. yes i realize the size of the engine would be kinda outlandish, ..using the 10% displacement difference, it'd take a ~3.1L CIB engine to make that power. lol a little too micro-block for you dwight? haha shoudl put out a tad more torque than the v6 of that size... rev better? damn, this is seeming totally stupid. oh well, thoughts? how about a 4.2L v12? towards 500hp? what.. it's been done?.... awwwww

Hey all, Looking to buy a 1996-1999 Olds Eighty Eight, and want to know which tranny is better for reliability, the 4T60E in the 96-97 or the 4T65E in the 98-99? We had the 4T60 in a 1994 Trans Sport that was nothing but trouble, and have had three 4T65E vans without trouble, but I'm looking for a second opinion. Any help is appreciated.

any known plans to put these trannies in passenger vehicles? ... we know they're going into the gmt900s and probably the NG vue... is this going to be an option for larger engines over the BAS system?

GM Takes New Combustion Technology Out of the Lab and Onto the Road PONTIAC, Mich – Engine experts have dreamt about it, talked about it and lectured about it, and today – for the first time – General Motors is letting outside parties drive the “most awaited advanced combustion technology” of the past 30 years. GM demonstrated the combustion process, known formally as homogeneous charge compression ignition, or HCCI, for the first time in two driveable concept vehicles, a 2007 Saturn Aura and Opel Vectra. When combined with the enabling advanced technologies such as direct injection, electric cam phasing, variable valve lift and cylinder pressure sensing, HCCI provides…

AS you all probably know the 08 vette has the new 6.2 450 hp LS3 v8 standard replacing the 6.0 400 hp LS2. Anybody know anything about the LS3 besides the 450 hp figure? Tourque, redline, power band etc? Does it have DOD or VVT or both? What cars do you think it will end up in as all of the recent LS2 cars are dead. No more SSR, GTO, or CTS V. The future CTS-V is supposed to get at least 500 hp so this engine won't end up there. Will this be exclusivley a Vette engine? What do you guys think...

So I searched Google and found some stuff on the LS3 in the '08 Corvettes and got some interesting stuff... They're dynoing bone stock around 385 RWHP. CAI adds 10-12 WHP, headers are another 40 WHP, and a cam is about 60 more WHP. The heads can be ported to flow about 10% better than the 320 cfm they do stock. A Procharger is helping significantly with 150 WHP and 120 ft-lb extra on only 5-6 psi (for bone stock engines). So if I'm reading this right... upgrade your Camaro SS's lower end, add some loads of money and work, get a tune, and dyno in well over 600 WHP.

GM Anxious To Sell New Two-Mode Hybrid Transmission To Other Automakers Link to Original Article @ AutoNews Ford and General Motors could get a lot closer. The automakers have co-developed a six-speed automatic for front-drive cars. Now Ford is interested in using GM's Two Mode hybrid transmission, which debuts on the 2008 Chevrolet Tahoe and GMC Yukon SUVs. Kuzak said Ford has been talking to GM about buying a version of the Two Mode for use in rear-drive trucks. No deals have been announced. GM is anxious to sell the transmission to other automakers to increase production and lower costs. GM also has a fwd version of the Two Mode slated for production next ye…

clicky

-- FICTION -- The Microblock V8 The 2011 Microblock V8 engine is designed to succeed both the Small Block and Northstar families as GM’s sole V8 for the second decade of the millennium. The design objective is to create a highly compact engine equaling the LS-family’s performance, while being more compact, more economical and weighing no more than the 3.6 liter DOHC V6. The engine is a pushrod OHV design incorporating the latest technologies including direct gasoline injection and variable cam phasing. Variable rocket ratio was considered but relegated to a future upgrade due to the additional costs and complexities it will incur. The Microblock engine is based nei…

GM To Invest $100 Million In New York Plant For Diesel Engine Production TONAWANDA , N.Y. – General Motors Corp. will invest $100 million in its Tonawanda engine plant to produce an all-new, 4.5-liter V-8 Duramax high-output diesel engine for the Chevrolet Silverado and GMC Sierra light-duty pickup trucks and the HUMMER H2. The engine fuel efficiency improves by 25 percent when compared with gasoline engines. Environmental benefits of the new engine include a 13-percent reduction in CO2 versus gasoline engines, and at least a 90-percent reduction in particulates and NOx when compared to diesel vehicles today. The investment includes a 200,000-square-foot facility ren…

The LNF is a very good engine. 260hp @ 5300 rpm and 260 lb-ft @ 2500 rpm are very good numbers. BUT, they are not as good as they can be. Here's why... This engine revs to 6300 rpm, but the last 800 rpm or so does nothing but give the driver the flexibility of not shifting if he is in a corner and does not want drive train disruption at that specific time. Other than that, this is one engine that should be short shifted way shy of its redline. The KKK K04 turbo used is again, good but not the best. This is very similar to the unit used in the Audi TT 20v 1.8T (225hp version) and is a little undersized for 260 hp. The response of the engine is good, but not as good as s…

GM Sequel, Part II GM to build the Sequel, its hydrogen fuel-cell car, claiming it has increased its range to 300 miles and 0 to 60 mph in under 10 seconds Way back at the start of 2005, the world's largest automotive manufacturer, General Motors, showed the Sequel advanced hydrogen fuel-cell concept vehicle at the 2005 North American International Auto Show (NAIAS), billing it as the culmination of US$1 billion of intensive research it had conducted into fuel cell technology. Like most show cars, the Sequel was not a working model, but now General Motors Chairman and CEO Rick Wagoner has gone on record as saying "the most technologically advanced car GM has ever b…

A New Internet Stop for GM Performance Parts DETROIT – GM Performance Parts (GMPP) is unleashing a new power – and instead of delivering it in a crate, this power is delivered on the web at GMPP’s all-new website, www.gmperformanceparts.com. As the leader in providing high performance solutions to the automotive aftermarket, GMPP is extending its horsepower expertise to this newly launched website created by advertising agency, Leo Burnett Detroit. “Over the past several years we’ve introduced some exciting new products, like the 350/290 HP, the ZZ572 and the LS7,” said Lisa Reffett, marketing manager, GM Performance Parts. “It seems only fitting that our website sho…

How much does GM underestimate engine power? We all know GM is notoriously conservative when calculating engine power. This has been highlighted the last couple of years as GM has begun a comprehensive program of third-party certification, with nominal horsepower increases even as rival automakers cut power claims with the advent of the new SAE standard. The latest beneficiary is the new higher-output version of the fwd LY7 in the Acadia and Outlook crossovers. Compare the previously published figures with the latest, certified results. Ford and Toyota, read'em and weep. Power (hp / kW) 263 / 196 @ 6600 rpm w/ single exhaust (est.) 270 / 201 @ 6600 rpm w/ single exhaus…

GM has been sucking for years. I know many of you don't to hear that or admit that, but it's true. GM sucked in the 80s. They sucked in the 90s. They have been dong all the bean counting and quality skimming possible in order to remain the "value leader" while operating out of a high cost country (USA). It's a moronic formula, but for over two decades they stuck to it. Today, GM vehicles (and most American cars for that matter) are viewed as technologically and qualitatively inferior products with a dubious reliability record, poor economy and resale values in the toilet. GM has finally awaken -- the GMT900s are OK, G6es are decent enough, the Aura is yet another step for…

OK, of all the GM brands, I'm least familiar with Buick powertrains in a historical sense. I've always "heard" that the 300, 340 & 350 CID V8s from the 1960s-70s were "small blocks" and had their roots in the early 1960s 215 CID V8, which was at least sometimes an aluminum engine. I also have it rolling around in my head that the modern Buick "big blocks" were intro'd for 1967 and were available in 400, 430 and 455 CID versions (1970 for the 455). So here are my questions: Is this summary essentially true? Are the 1967+ big blocks related at all to the previous nail-head V8s? How about the small blocks? Did the early Olds F85/Cutlass come with the Buick 215…

L67 still has the stuff, just found this tonight, its actually a month old http://zzperformance.com/grand_prix/latest_news1.php?id=112 stock used block/lower end, stock differential & final drives, not too shaby !

http://www.sdpc2000.com/catalog/120/produc...minum-Heads.htm Would it be possible to put this into a 4th gen Camaro? I know all-in-all it would cost around $10,000 dollars to get it installed, but would it even fit? I was thinking of maybe a 572 before, but it would just cost way too much. Thanks in advance

GM's Unprecedented Launch of 6spd Transmissions Shifts into High Gear PONTIAC, Mich. - Transmission engineers at General Motors Corp. have given new meaning to the term "overdrive." By using high-tech computerized tools, they launched nine new fuel-saving six-speed transmission models - the industry's largest lineup - in just four short years. Furthermore, their use of this technology has shaved as much as six months and $15 million from the typical transmission development process. GM transmission engineers use sophisticated math modeling, among other advanced tools, to not only design the transmission components, but also to predict and test their reliability, analy…

Hey guys, I'm looking for some information on the following engines not included in the C&G Resource Guide (found at the forum header). The information that I am looking for is as follows: Engine Name (i.e. Ecotec 2.2L I4) Displacement (cc / ci) Configuration (i.e. DOHC 4 valves/cylinder) HP @ RPM lb-ft @ RPM Applications (models each engine is found in) Engine Code (i.e. LS2 or LK5). Here is the list of engines I'm looking for (along with any others you may find that aren't on the C&G Resource Guide: 2.0L Turbo Ecotec I4 (9-3, Solstice/Sky) 2.3L Turbo I4 (Saab 9-5) 2.9L I4 (Colorado and Canyon) 3.6L DI V6 (Aura XR and ’08 CTS) 2.4L Hybrid I4 (Aura/Vue Green Li…