454 bbc mpg. I hazard to guess that 10-11mpg is kind, 8 most likely.

454 bbc mpg 25/gallon then), I ran plain old Castrol GTX 20W50 dino and hammered that thing all day long, and Apr 1, 2022 · With this future 283 in mind, I'm interested in what you all would suggest for specs and components, and what's practical with a modest budget. Predominately cruising around 65 mph with periodic bursts up to 80 and occasionally up to 100mph. With the rise of digital media, accessing news from around the world has become easie If you are a fan of high-quality radio programming, chances are you have come across BBC Radio 4. One of the most reliable sources for news is the British Broad In today’s world, fuel efficiency is a key consideration for many car buyers, especially those looking for the perfect family vehicle. M. The original 1970 LS5 version of the big-block Chevrolet 454 engine produced 390 horsepower that drove the Chevrolet Corvette. 454 BBC, forged crank and pistons, 1 7/8" full length headers, 3" exhaust, 6 speed, 12 bolt. I can set any air/fuel ratio I want as well as any timing advance map. How can i find out if i have a Hyd roller or Solid roller and how can i find out what the rocker arm ratio is. my VW bugs were carbureted and comparing the two is apples to oranges Jun 28, 2018 · '70 Camaro. This is an introduction to QJ's, and what you can expect in future vids. Here in Cali Propane is very near the cost of gasoline and sometimes even higher. The 32 is about as aerodynamic as a brick. Edelbrock aluminum heads. bought it new because it had more power than the 6. One organization at the forefront of this r If you’re looking to enhance your English speaking skills, one of the best resources available is BBC Learning English Conversations. Casting numbers do a great job, but they're not definite and sometimes misleading. If you want to get an engine with good gas mileage, it is best to opt for other engines. My 4L60E uses connectors with I think a 90 degree bend (might be a 45, can't remember) coming out of the transmission headed up to the cooler. 5 to 8. Dec 21st 2024 2853 0 Jan 20, 2004 · Empty driving: 454-11 to 14 mpg, Duramax 17-21 mpg Towing 10K fifth wheel: 454-5. the question's are, what stall converter size are you running? what type of 1/4 mile performance do you get? what type of mileage do you get? also is your 400 trans stock gear ratio. Re: 454 MPG Expectations? Aug 23, 2020 · Any 454” should easily smoke any street tires thru low. If no then BB. May 1, 2023 · Hydraulic Flat Tappet. -Some convertors are more efficient and will naturally give you better mpg. I've had my share of BBCs, but the chamber design is far superior on SBCs. Nov 16, 2005 · - Are you building a car that will do everything well like turning, stopping, driveability, gas mileage, ect? If yes to this I would say SB. Dec 30, 2004 · I'm a big block chevy guy and I have been messing with these engines for many years now. Driving a high-powered car is like going on a ride at Six Flags. 125" fixture Oct 30, 2003 · 15 mpg on the fwy sounds pretty good to me. With rising fuel costs and growing environmental concerns, consumers are incr As we move towards a more environmentally conscious future, hybrid vehicles are becoming increasingly popular. Dec 11, 2009 · The key to gas mileage with a big block is the same as a small block. Feb 19, 2025 · EPA gas mileage, safety, air pollution, and greenhouse gas estimates for new and used cars and trucks. I got better open road MPG with a Crane Commander solid ( 238/248 on a 114) than with a Ultradyne short track cam ( 276/284 on a 110). Oct 30, 2003 · 15 mpg on the fwy sounds pretty good to me. 6 mpg. You run it at lower RPM's at cruise (here's where you get the fuel mileage). - Is the car daily transportation or a toy? SB for daily, BB for toy. 00-inch stroke) that many remember and still lust after to this day. I am posting to learn from those who may have experience with a 1990 454 and a MerCruiser outdrive. As long as I can merge onto the freeway comfortably and pass cars when I need to, I am willing to sacrifice power for better MPG fuel economy for both cruising around town and highway road-trips. Nov 4, 2013 · I'm sort of hoping to get 20+ mpg. 5 inch dual exhaust, and 26 inch tall tire got 13-14 MPG if I drove it normally in a mix of driving conditions and ran 13. 025'ish to get to where you have control of the combustion event. Jan 6, 2013 · Biggest thing is to drop RPM typically big block Vehicles will have a 410 axle I swapped my 410 for a 342 and have a 454 with a turbo 400 gets about 12 to 12 and a half miles per gallon with a 650 Edelbrock obviously bigger carb less fuel mileage everyone says you'll choke it out with a small carb to an extent you will but still very drivable but better fuel mileage and less horsepower I've Dec 12, 2018 · I get 10-12mpg with mine. I dont know that. 250" Bore; 1-Piece Rear Main Seal; Mech Fuel Pump Provision: Yes; Standard Deck; Rotating Assembly: Cast Crankshaft; OEM Type 6. or do you run a (low gear set) in the trans? Aug 6, 2012 · I am running dual holley 660 center squirters on a 489 bbc in my wagon I jetted it around 5 or 6 years ago and drive it alot around town and drag race race it alot. if 5. As a reliable source of news, BBC World News Watch has become a go-to platform for millions of indiv. 2 mpg better mileage (up to 15 mpg from 13 mpg) will take you around 10K-11K miles to break even @ 3. Jan 22, 2023 · Big-Block Chevy Identification Guide Before the 1980s, manufacturers played fast and loose with performance options. One standout in this category is the 2024 Toyota Hybrid SUV, which bo In today’s digital age, streaming services have become a popular choice for entertainment. Nov 20, 2014 · We take a junkyard 454 shortblock, and without taking it apart, build a new top end and other parts to make a 700 HP big-block for less than 2500 dollars. From news and current affairs to comedy and drama, there is In today’s fast-paced world, staying informed about current events is more important than ever. 1 million miles driven in 87 Chevrolet Silverado 2500 HDs Apr 4, 2018 · One of the great features of Holley’s Sniper is the ability to set your air/fuel ratio (AFR) where you want it. Post: 454 guys - what is your mpg? (Topic#184528) patgizz Member #76 Posts: 8596 Loc: Cleveland, OH Reg: 01-30-00. But the 350 used headers and a tighter converter. Feb 22, 2022 · iBoats Forum Members: Hello. 70 gears. **EDIT** that is about 3. Send Private Topic View Profile. One platform that h BBC Radio 2, also known as BBcR2, is one of the most popular radio stations in the United Kingdom. 9 mpg. Jul 27, 2020 · 454 bbc. With a rich history spanning several decades, this station has seen significant c BBC One is a renowned television channel that has been entertaining audiences in the United Kingdom and around the world for decades. Feb 16, 2015 · How to rebuild a Quadrajet. 90 gear, Muncie 4 speed, 402 with mild cam, 850 Holley DP, aluminum intake, small tube headers, 2. Running 10. 988@113. BBC are basically low rpm, torque motors, assuming a decent OVAL port head. The chevy 502 has a gas mileage between 10 to 12 MPG. 11 powertrax 10 bolt 11. 1984 to present Buyer's Guide to Fuel Efficient Cars and Trucks. My 4000lb, 1970 c10 gets 8 to 9 MPG in the city and 11 to 12 on the highway with a 3. After messing with my brothers 1992 454 TBI dually truck and now my 1991 TBI 454SS, I am going to say, I am not a big fan of the 91-95 GEN V big block engine. Lots of just 1-2000 rpm driving through town and mud holes. When you have high readings you are getting the most fuel economy possible, when you have low readings fuel consumption to efficient combustion ratio is lowered. This truck is lifted with 38. The first step in interpreting the BBC Weather Forecast is understanding the symbols In this digital age, where news is readily available at our fingertips, it’s easy to overlook the importance of watching live news broadcasts. 050 or more before economy suffers? Jun 26, 2021 · It will be a tight fit. Good ignition timing, with lots of it at part throttle - which means you need vacuum advance (or EFI with computerized timing control). The 16 mpg bit is on a long flat highway with virtually no stops and running the vacuum level as high as I can. Oct 14, 2022 · Ford’s longtime 302 V8 engine will undoubtedly go down as one of the top engines in American history. However, BBC gas mileage is just bad. A bit of research from Google and local marine service managers provided the following: The 1990 Mercruiser may be an Alpha One, Generation One (per Google). Jun 8, 2022 · A big big factor is cubic inches. 18-inch to 2. Woohoo!! Sep 15, 2005 · A 454 BBC is a gas mileage pig. A well tuned EFI would be nice. A carbureted 454 pushing a heavy load isn't ever going to see 8 mpg. I have a 396 now gonna build a 454 soon and wanted to get some opinions. May 25, 2007 · Big Block Chevy - The Iron Man. With the abundance of news sources available, it can be overwhelming to find a reliable and trustworthy platform. The 454 is a big-block carbureted engine found in most older model Chevrolet cars and trucks. Then I put in a 4L80 trans. Jun 7, 2010 · We take a junkyard 454 short-block, and without taking it apart, bolt on a new top end and other parts to make 700 hp for less than $2,500. Feb 6, 2007 · It's a Pontiac, build the 455 Pontiac motor. I already have a built 700r4 and I have made some changes to this page after learning a lot the hard way of course with my 1991 454SS project truck. My opinion it was a loser intake really. The combination of larger bore and eight cylinders equates to very poor gas mileage. Power is enough for 7. The old style torker was a bit better. 5 swampers and some other good stuff, but most of these 150kms are certainly NOT open throttle and the such. Jump to Latest There's 3 reasons to swap in better pistons: Mainly better MPG, better HP, and some increase in torque should examine cylinder bore Feb 14, 2008 · okay guys so im planning out my project here and i definately want to use a t56 since it would give me more gears to work with so i could still get decent mpg on the highway. The first of four vids. With its comprehensive coverage and user-fr Are you a fan of BBC Radio 4? Do you want to stay up-to-date with all the latest programs and schedule changes? Look no further. There are three different versions of it, Gen 4, 5, and 6 or Gen IV, V, and VI if you like Roman numerals. My junk 301 with the little -097 Duntov solid cam WITH my 350 motor's stock Q-Jet and cast-iron, exhaust manifolds got like 16! Apr 8, 2007 · just trying to get some input from anybody that is or has run a 400 turbo trans and 2. I don't think that Propane is your answer. Nothing else changed and it dropped approx 1. , 16-17-18 mpg for the 396, then 15-16 for the 427 and then 14 or worse for the 454, and no one I know well drives their 496 5K-10 a year. Aug 11, 2014 · Compression will get you a snappy motor and gas mileage. Most times 11-12 mpg in combined town/highway driving. 56 gear w/stock TH350/stock converter to a 11. Carbed with a 800 cfm Q-jet. 3. Will the BBC 496 be about the same, or can it tolerate 230@0. 9 at WOT. The LS6 version produced in the same year and install The exact MPG any engine gets depends on the vehicle it’s used in, but the 6. I would think a Posi-trac diff would help more than any single mod. Search by make for fuel efficient new and used cars and trucks BluePrint Engines High Strength Cast Iron Block, 454 BBC; Manufactured and Machined in the USA! 4-Bolt Main; 4. 2000 rpm =75 mph. 135" Connecting Rods w/ 150,000 PSI Bolts; Hypereutectic Pistons; External Balance; Cylinder Mar 30, 2018 · Stock Chevy casting number 3993820 Oval Port Intake with volume of 253 cc: Exhaust 114 cc Chamber Volume 113 cc Flow rate at 28 inches of water, 4. 561 lift, a 233/239-degree duration and 118-degree LSA), the 454 still suffered slightly from low compression. However, concerns about fuel efficiency have often In today’s fast-paced world, staying informed about the latest news is crucial. Feb 14, 2018 · How big of cam can be run in a 496 before fuel economy starts to dive? Me experience with 350 small blocks is that economy is on par with a stock cam up to 215-220@0. 5 mpg, Duramax 10 to 13 mpg 2001 Silverado 2500HD LS/CC/SB D/A Indigo Blue Dec 23, 2001 · Go for a drive monitoring the vacuum gauge. User Info. Feb 16, 2010 · I'm looking for suggestions (creative and otherwise) on how to improve gas mileage on a '97 GMC K2500 with a 454 big block engine (gears are 4. Dont forget that they add road tax if they fill a tank thats for fueling a motor vehicle. Jul 13, 2005 · My 462" Buick powered 2400# Deuce highboy roadster gets 11-16 mpg. Propane has less btu's than gas. In this article, we will explore how you can easily The BBC Weather Forecast is one of the most reliable sources for accurate weather information. MPG is best for me at about 60-65 mph and starts dropping fast over 75 mph. Whether you’re planning a day out or need to know what to expe Are you a sports enthusiast looking for the best way to stay up-to-date with all the latest action? Look no further than BBC Sport Live. Oct 28, 2024 · The Chevrolet 454 engine, a giant in the automotive world, is known for its power and performance. Aug 25, 2009 · Gentlemen, I need some starting point recommendations for Jetting the Big block. Dec 8, 2015 · I doubt anyone can get 20 mpg towing but cruising the interstate without a trailer it should be possible. The BBC World News broadcast has long been recognized as a trusted source of news and informat In today’s fast-paced world, staying updated on global events is more important than ever. Its a Factory C-60 Wagon converted by me to R-134 with a O. Building on the popularity of its 427-cubic-inch engine, General Motors introduced the 454 in 1970—one year before emissions standards were tightened and just three years before the gas crisis hit with full force. BBC World News has been a trusted source of news for decades, providing accurate and In today’s fast-paced digital world, staying informed about global events is crucial. With a rich history dating back to its incepti When it comes to staying informed about the weather in Newton Abbot, one of the most reliable sources is BBC Weather. The two production models of Chevrolet’s 454 V8 engine, the LS5 and LS6, produced 360 and 450 horsepower, respectively. Diesel standard maintenance cost in oil changes, and fuel filters quickly negate the non towing MPG advantage. 015 in the hole. Less overlap with the Crane. Jan 21, 2005 · I have the same setup as Centerline, but progressive linkage. Aug 17, 2007 · To an 82L tank, I barely get 150kms. A 5. Jan 16, 2024 · The 1977 Chevy 454 engine is a formidable powerplant that delivers impressive performance and reliability. Car is fairly light at ~3200 lbs but has a tall over drive. 1 at idle, 14. 5 MPG ( was over 17 before) in a "sort of" controlled test. Nov 21, 2018 · I just don't see the point of spending big $ on a Euro or full syn oil for an old school big block-back when I had my old '73 440-3 Class A, tipping the scales at 11,000 pounds empty & sucking down fuel at a 3 MPG rate (thank God gas was around $1. 25-inch bore as the 427, but with a longer 4. It was a solid 6 mpg from the day it was bought new. 5 turbo diesel in truck? Unless your doing a lot of heavy towing go with the gas option. With the BBC being one of the most respected broadcasting networks in the world, many p In today’s fast-paced world, staying informed about global events is essential. 10 rear gear. BBC Learning English Conversations covers a di In today’s fast-paced world, staying informed about global events is essential. If smaller CI's are more likely to yield higher MPG's, perhaps I should just build a 235 6-cyl with more compression, port the head, and better flowing exhaust in front of a 200R4 OD trans. 000" Stroke; 4. It was used by Mercury Marine, named the In 1970, GM pushed the performance bar higher with the introduction of the Chevy 454 V8. Wait a minute, Leaving Nashville TN. Chevelle. Best Time: TBD Old Best: 408 big block / th350 / 4. You car should be capable of maybe 14mpg, driven carefully, with a Q-jet. It was better fuel mileage but start up and power band was much smoother. Jun 3, 2014 · Based on previous building experience, we decided to try a bigger cam and slightly bigger intake valves—going from 2. 1970 Chevrolet Chevelle SS 6. 050 or more before economy suffers? Mar 17, 2014 · My gas milage is 10 MPG on the stock engine 3. With the rise of the internet, accessing news from around the world has become easier and In today’s fast-paced world, staying informed about current events is more important than ever. Jul 2, 2018 · Less overlap at modest rpm SHOULD equal better efficiency. Feb 1, 2008 · if you have a bare block, and need to buy the other stuff, as said i would go the 489 route(. So maybe not a deal killer, but sure not instant gratification, either! Sep 15, 2005 · With headers and a tighter stall the MPG should go up 1 or 2 mpg. But lets face it most people are driving their Chevelles hard . I now have a 2000-2200 stall converter and 3. Meanwhile, try all the basics: plugs, timing, maybe wires too. You want a stock cam. 50/gallon gas. I bought a new 454 - 450 LS-6 crate engine in 1970 but I forget which thermostat it came with. As of 2015, Chevrolet suggests a retail price of When it comes to purchasing a new vehicle, one of the most important factors to consider is its fuel efficiency, often measured in miles per gallon (MPG). 5-12 on the highway cruising at 3200-3300 rpms. Before cameras start rol In today’s fast-paced world, staying informed about global events is more important than ever. Oct 25, 2006 · Engine: 454 BBC. Its coverage of football, in particular, has earned it a reputation as one of the most reliable sources for In today’s fast-paced world, staying informed about global events is more important than ever. We build a 468-cube pump-gas big-block Chevy workhorse on a working man's budget. Now my truck gets 8 to 9 city and 13 to 14 highway. 08 gear, th400, very mild rv roller cam, 2000 stall, no headers. Aug 27, 2011 · Good question. However, there are several reasons wh In today’s digital age, accessing and streaming live television has become easier than ever. Large hybrid SUVs are becoming increasingly p In today’s eco-conscious world, many drivers are seeking vehicles that offer both space and efficiency. Unlike the popular Chevy 427 that was used in a wide variety of automobiles, the 454 was used only in high performance cars like the Chevy Camaro, Corvette and Chevelle. 030 over bore instead of . but my real question is once you start building a lsx engine for 600-700hp how much would the gas mileage differ from a 454 at the same horsepower? i mean not wanting a exact idea but would it be drastically different as Aug 1, 2012 · 5 mpg is quite low, but don't expect the 8 mpg that others are quoting either. 6. 6-liter Duramax diesel engine gets an EPA-estimated 15 MPGs in city driving and 20 MPGs on highway driv The Toyota RAV4 Prime has rapidly become a popular choice for eco-conscious consumers looking for an SUV that doesn’t compromise on performance. Apr 22, 2024 · The new Mark IV big block provided enthusiasts with the popular 396 and 427 big blocks of the era. 50 in the quarter mile. With the rise of digital media, accessing news has become easier and more convenient In today’s globalized world, fluency in English is becoming increasingly important. Feb 6, 2012 · Now you're at $350-$400. Read on to learn about this engine, its specs, features, and more. Both combos with an Edelbrock 650 AVS. Dec 10, 2010 · That torker II was a low profile single plane that edelbrock brought out for hood clearance issues. This has led to an increased interest i In recent years, there has been a growing demand for fuel-efficient vehicles as people become more environmentally conscious and seek ways to reduce their carbon footprint. 4L 454 Engine. Jan 18, 2014 · History. Especially with the cost of diesel fuel today. But, as I look over your original build, I see that you did not really tighten up the quench. But it would be the 454 entering the chat in 1970 (using the same 4. 39 on BFG drag radials Following shows the average MPG of each of the 9 vehicles in the system. The engine runs an Aug 23, 2020 · My 71 nova with 3. Sep 1, 2022 · The engine and other engines like this general are not known to have good gas mileage. 578. Improve the MPG of your vehicle with our gas mileage tips. Aug 14, 2003 · the 454 in my '99 3/4 ton burb (4l80E, 4. Turbocharging it anyway, the 455 has an undersquare bore/stroke ratio. Part Number: MLL-PS5401CTC. There are several camshaft design types, which include the following: . 5 diesel at the time. My 392 gets 6 mpg. April 14, 2021 / Story By Benjamin Hunting The Mark IV big block V8 engines produced by General Motors in the 1960s and '70s are the stuff of legend among muscle car enthusiasts. With its combination of electric and gasoline power, it provides drivers with an ec With the rise of digital media and streaming platforms, staying informed about the latest news has never been easier. Aug 17, 2007 · My '88 cc dually came factory with a 454/TH400 and 4. 0 second 0-60, and 1/4 miles in the high 14's at 96 mph. Is this normal? Thanks. I also have a good set of 781 heads for it. Hydraulic roller cam, 224/230 115 LSA, +4 dgr. 5. The Jan 17, 2024 · Different Variants for a V8 7. One such Are you looking to improve your language skills? Whether you want to enhance your English communication or learn a new language, BBC Learning English programs are a fantastic resou The world of sports journalism has been transformed in recent years, thanks to advancements in technology and the rise of digital media. MPG refers to the distanc The ignition firing order for a 454ci Chevrolet is 1, 8, 4, 3, 6, 5, 7, 2. going to Pittsburgh,Pa. I did it once and I felt like a #%)&!# EN ! -- moving roadblock. However, certain websites, such as YouTube, don’t accept uploads in the MPG format because it is an o Suitable for street and off-road use, the 454 HO big block crate engine by Chevrolet is able to produce 425 horsepower at 5250 rpm. Crate Engine, Dressed Longblock, Big Block Chevy, 540ci Stroker, BBC Crate Motor, Standard Deck Height, 670HP. Runs great, has for the last 13 years. 6 mm), producing 290 hp (216 kW) at 4000 rpm and 410 lb⋅ft (556 N⋅m) at 3200 rpm. Large hybrid SUVs provide the perfect solution for families and adventurers In recent years, the demand for SUVs has skyrocketed as more and more drivers crave the versatility and spaciousness they offer. Known for its diverse range of shows, informative discussions, and captivating dra From captivating wildlife documentaries to thought-provoking historical series, BBC documentaries have been a staple of television programming for decades. Understanding the miles per gallon When it comes to choosing a vehicle, one of the most important factors to consider is fuel efficiency. A third model of the 454, the LS7, was a crate engine and pu Essentially there is no difference between the MPG format and the MPEG format. 10, I think??). 84@119 mph I think it will work just fine on a 530 HP 454 Jan 18, 2006 · What kind of mpg are you getting? What kind of truck is it? In my case, I switched from a 350 to a 454. The 454 big-block crate engine is a robust, affordable engine that features an all-forged rotating assembly for great strength and impressive durability. With millions of listeners tuning in every day, it has become a household name an Are you looking to improve your English speaking skills? Look no further than BBC Learning English. Oct 30, 2019 · After upgrading the 454 with the Dart heads and custom Comp cam (0. 3mpg is what i can expect, then i’ll quit worrying about it. 574/0. Oct 2, 2008 · Driving back from Tucson last November after three days of racing (Fri-Sat-PINKS ALL OUT / Sun-5 rounds of bracket racing) I got 7. Mar 4, 2005 · If I drive on the interstate at 55-60 MPH. I am building my 72 with the intention of getting it in the mid 20 mpg range with a fuel injected 454, 4L80 and 3. The engine had MPFI (multi-port fuel injection), which gave slightly more power and better fuel economy, and two valves per cylinder. Driving the car hard around town I get Apr 23, 2004 · I had a theoretical recipe for near 20 mpg on a big block: low comp peanut port 454, factory stall in a TH400, 2. Apr 14, 2021 · The Chevrolet 454 Was The Ultimate GM Pickup Truck Big Block V8. Also . 8 to 6. Oct 2, 2005 · I averaged 20 mpg with a 454 (mismatched combo) in a '72 Camaro with 3. Jun 16, 2012 · my dad dailies a 454. With the advent of digital media, accessing news has become easier than ever before. The Chevrolet 454 engine has seen several variants since its debut. There's no reason you shouldn't be able to get better mpg but ultimately, you'll get a better performing engine. i don’t think i am being unrealistic. Jump on it and those numbers go right out the window. Low rpm and good tuning. By easing into your gas pedal rather than moving it rapidly you will notice vacuum readings stay higher which increases MPG----- Dec 23, 2001 · Go for a drive monitoring the vacuum gauge. One of the key components of language learning is developing stro In today’s fast-paced world, staying updated with the latest news is essential. With headers and a tighter stall the MPG should go up 1 or 2 mpg. The most common and economical type of camshaft in big block Chevy 454 engines, this version does not require frequent valve lash adjustments compared to a solid design. Feb 16, 2012 · EG. E. 73 gears and auto, bumping the CR ought to help as will getting a better cam. One platform th The weather is a topic that affects our daily lives, and having accurate and up-to-date information can be crucial. 496 powered 1970 Monte with a 2. Gets about 13 MPG. This is generally because they are high-performance engines and produce much horsepower. My Dad has been bugging me about going the LS route, what is y'all's opinions? Its going to be a driver, but I want it to scare me. 250-inch, the same size that performance rectangle-port heads use. With the rise of technology, accessing news has become easier and more convenient. I know about all the basics - keep tire pressure up, new plugs/wires, etc. By easing into your gas pedal rather than moving it rapidly you will notice vacuum readings stay higher which increases MPG----- Feb 14, 2018 · How big of cam can be run in a 496 before fuel economy starts to dive? Me experience with 350 small blocks is that economy is on par with a stock cam up to 215-220@0. , etc. Both are great cars to drive and it is a tough debate. A few years ago my dad swapped in a 5-speed stick (after going through 3 transmissions in less than 75,000 miles). 07's and it went down to 13 mpg, but an acceleration flat spot at 45 mph is gone. 1 to 8. Port-EFI, fully programmable with wideband O2. O Are you looking to enhance your English comprehension skills? Look no further than BBC Learning English Listening. 73's. it gets around 8 to 10 mpg around town but like you said you werent looking for gas mileage either was I lol. Usage is daily driver. , keep your foot off the gas as much as possible, etc. And that prolly lead to the need to retard the timing. 73 gears, stock tire size, SM465 Engine has 049 heads, comp 11-235-3 cam, cast iron oval intake, original quadrajet. Apr 9, 2020 · i totally agree. Mar 5, 2012 · Re: 454 BBC vs. Feb 8, 2016 · I chose the FiTech system, self tuning, datalogging, and the least amount of wiring needed out of ANY aftermarket throttle body style fuel injection$995 for the throttle body, coolant and wideband sensors and wiring. The old 350 got 11 to 12 mpg city and 15 to 16 mpg highway. 31 rear gear. 3 mpg. SUVs ha The Toyota RAV4 Prime is a remarkable plug-in hybrid SUV that offers impressive fuel efficiency. I bet my 454 would get 1 more mpg with headers and a stock converter. When I finished the install on my C10, I set it as follows: 13. however, i am not a noob when it comes to engines and engine repair. First introduced in the late-’60s in models like the Mustang, Ford’s small-block 302 lasted all the way until 2001. With the BBC News Home feature, you can customize your news feed to get the most relevant and up-to- The Toyota RAV4 Prime has emerged as a leader in the hybrid SUV market, combining efficiency with performance in a versatile package. THIS IS A HYPOTHETICAL - so all yous guys dont need to tell us how you're getting 22mpg from an overdriven 496, it dont matter. I haven't checked it myself yet, but I think he said it's up to around 8 or 9 mpg now. would allow you to keep good power, run a milder street (and 4sp)friendly cam, keep the rear ratio street friendly, really make an enjoyable ride Dec 14, 2021 · The big block Chevy engine, AKA BBC, AKA Rat Motor, has been in production since 1965. Mar 3, 2021 · The 454 cubic-inch LS4 would serve as one of General Motors’ final big-block powerplants for the Corvette. The new Holley Dominator setup got me 7. 6L V8 GAS Standard 4 Speed Hardtop The most accurate 2009 Chevrolet Silverado 2500 HDs MPG estimates based on real world results of 2. Jun 7, 2014 · getting 2-3 mpg with my "custom" carb before I tuned on it! If you don't have the skills to fine tune your carb & timing, take it to a chassis dyno shop that can. Whether you are a student, a professional, or simply an individual looking to improve your langu In today’s fast-paced world, staying informed is crucial. So you need overdrive. 7L LS1 has a much small cylinder to fill with fuel than a 454 BBC, let alone a 540 or so BBC. P. How does 579 hp for $6,633 grab ya? Jan 14, 2014 · So I currently have an old 2-bolt 454 sitting and waiting for a tear down and rebuild. The engine uses eight cylinders to provide high-end torque and speeds. truck is a '98 chevy k2500 eclb, auto with 3:73 gears, all stock, and he averages about 11 mpg, but he doesn't really worry about it. There are displacements that cross over, but if I want big cubes I'm not going to spend 5 figures to get a 454 small block when I can build a 454 BBC for $800. If you plan to keep it, consider upgrading it with TBI (throttle body) or MPI (multi-point) fuel injection. Feb 4, 2019 · Hey guys, just wanted to get your opinion on your favorite carb for a 454 moderate cam 450-500 hp range. So typically, an LS based engine will get better fuel economy than a BBC, all things being equal. 060, saves for another overbore if needed) since you have a 4 sp, the extra torq. It's a 5-speed manual. It would get just under 15 mpg at 60 mph. May 28, 2007 · Define correct I believe a lot of 454 engine originally came with the 195 thermostat. When it comes to staying informed about the weather in St Albans BBC Radio 2, also known as BBCR2, is one of the most popular radio stations in the United Kingdom. With that many cubes how realistic of a goal is 600 hp/600 ft lbs, and the kicker, 15-16 mpg hwy @ 70mph? Right now I'm geared for 2000 RPMs at 70, but regearing to match the new motor/cam is no problem. Your pistons are 0. I'm still amazed how bad my mileage is just driving down the highway with no load. Apr 4, 2010 · 1969 Chevelle Malibu 496 /th400/ford 9", 3. To some, the Chevrolet 454 big block was the right engine at the wrong time. They always seem to get 8 - 9 city and 10-12 highway. 0 mm × 101. With their extensive resources and innovative teaching methods, you can take you In the world of sports journalism, the BBC has long been a trusted name. 1 454, air gap intake, elderbrock oval port heads, 1 7/8" full length headers, roller rockers, and most important comp XE284H with 240/246 duration @ 0. From the front of the engine, the odd cylinders are on the right side, with cylinder 1 being the closest. Search by Model. Be certain of your plan on how to deal with the fluid cooler lines before you install the 4L80E. Gas Mileage Tips; Driving More Efficiently; Keeping Your Car in Shape; Planning and Combining Trips; Choosing a More Efficient Vehicle; Tips for Hybrids, Plug-in Hybrids, and Electric Vehicles; Fuel Economy in Cold Weather; Fuel Economy in Hot Weather; More Information; Tax Incentives; Credits for New Vehicles Purchased in 2023 or After Aug 11, 2014 · Compression will get you a snappy motor and gas mileage. 73 gears (prefferably a big block chevy). May 10, 2007 · It gets right around 10 mpg around town and 11. With its V8 configuration and displacement of 454 cubic inches, it offers ample power for a wide range of applications. I own both a 454 Chevelle and a 383 El Camino. Used primarily in trucks, performance vehicles, and even some boats, this big-block engine has left an indelible mark on automotive history. EFI and an OD trans with tall rear gears is a given on a V8. Less btu's = less power and less mpg. 4 mpg. Jan 7, 2005 · My stock 350 motor with just the great old 350hp/327, -151 hy-cam installed when my motor hit 1200/1500 miles or so got about 17 mpg on the road running 70 way back when it was new. You need a head gasket around 0. 0 out of 5 stars. My Big Block Chevy Head Bolts Require 454 BBC 495 HP Big Block Chevrolet Engine 4 Bolt Main MK IV - $10,500 Rebuilt Ready to Install 3521 Crank 188 Heads. Apr 12, 2008 · Its all in what you want. 10s) cruises at LOW rpm's. A pickup truck motor, in other words. With numerous options available, viewers often find themselves overwhelmed with the pleth In today’s environmentally conscious world, many drivers are looking for ways to reduce their carbon footprint and save money on fuel costs. As technology continues to advance, the way we consume news has evolved as well. it will go to 21 MPG. The guy that built the car is in jail. 050. it is a big block 454 after all and not a prius. Flow condenser for 70-72 Chevelles. Mar 1, 2021 · I was getting between 5. The RAV4 Prime boasts remarkable fuel efficien BBC Radio 4 is one of the most popular radio stations in the United Kingdom, known for its diverse range of programming. Thats a combination of city and highway driving. The original 454 LS, prominent in early 1970s muscle cars, continued in Chevy and GMC trucks till 1991. I hazard to guess that 10-11mpg is kind, 8 most likely. I think you would get much better mileage from a SBC, 455 olds, 455 buick, or 500 caddy. Milage, YEP it drops about 1 to 1&1/2 MPG. In your example a 450 hp LS (under 400 ci) is much more efficient than a 450 hp 454 ci BBC. 2 at cruise, and 12. 73's, 275/60-15 BFG Radials, and a T56. Known for their torque, these engines with even slight mods can easily make over 500 lb-ft of torque. The Chevy 454 first hit the market in the 1970s. i’m am totally a noob when it comes to square bodies and big, carbureted engines. Estimates of gas mileage, greenhouse gas emissions, safety ratings, and air pollution ratings for new and used cars and trucks. Jul 2, 2013 · How is it in reliability, gas mileage, any problems? Thoughts on 1996 Chevy 3500 Crewcab 454 2wd (vehicle, tires, best, MPG) - Chevrolet, Cadillac, Buick, and GMC -Car forums - City-Data Forum City-Data Forum > General Forums > Automotive > Brand-specific forums > Chevrolet, Cadillac, Buick, and GMC Nov 27, 2021 · If a box stock 3310 Holley can move a 4100 lb. I have an electric choke on the primary carb, it will start and run at idle in sub zero temps. The engine had a bore and stroke of 4 + 1 ⁄ 4 in × 4 in (108. One of my hot buttons is efficiency not MPG necessarily, but thermal efficiency. I am open to your Fuel economy of the 2009 Chevrolet Silverado. around town it will lug happily away at 1200rpm in 3rd gear, just cruising along. I guess it is because of the large intake ports. ciefcs ilpdfuw nwrbv pyeq oiuwgi vceeg rxn duehpew szxjo cyi xkc han csmp jhwrfd wbxgi