JavaScript is disabled. For this one, I would want you to send your PCM into us to be done. no. Having tried the things you already have, I am pretty confident the issue is the PCM. We will set the tune up based on your modifications and requests. Best, least expensive way to get more power out of this engine is with our custom tune. That extra air going into your engine needs to get out somehow; installing a full aftermarket exhaust system like this is always good for more fuel economy, especially when combined with a freer-flowing intake. The engine displacement in liters is 7400, which is readily changed to 7.4 liters. The upgraded Vortec 7400 is a 7.4L V8 OHV 16V-volt FI engine. I didnt see anything on the site but that doesnt mean I saw everything. UltraPower 7.4L ECM Benefits: Gains of 40-45 HP and 45-50 lb-ft torque depending on existing upgrades Gains of 1/2 - 1 MPG Maintains speed and higher gears when climbing hills FULL RESULTS-GEN 5 454 UPGRADE-STOCK PEANUT PORT HEADS. For a better experience, please enable JavaScript in your browser before proceeding. The guys over at Hot Rod magazine wanted to prove its possible to make big horsepower from a Chevrolet big-block V-8 lifted from a junk1986 motorhome. Based on experience, we have had good results with Comp Cams 212/218 hydraulic roller camshaft. will i notice anything? my ecm has to be replaced. We have been doing them on a limited basis, it has been very challenging to find good cores to use. Build your own custom newsletter with the content you love from Street Muscle, directly to your inbox, absolutely FREE! Fuel pump doesn't run. However, Chevy still offers the 454 big block V8 as a crate engine. Buy in monthly payments with Affirm on orders over $50. Oxygen sensor modifications can be done. HotCars covers all things automotive: the latest auto news and informative reviews on the car, pickup truck and motorcycle industries. Use a set of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. We are unaware of any cam upgrades specifically for the L21. Install a high flow air filter and cold air induction intake. Short tube headers won't do anything for you but long tube headers would he beneficial. The problem with making more power is that cost and performance often go hand in hand. I am considering your tune for my motorhome. You claim 40-55hp gains is that something that I will notice drastically or is it more of a subtle power increase? Although Chevrolet does not explicitly recommend it, because a full synthetic is so slippery, you can use a lighter weight oil without risk of excessive engine wear. 4 Bolt Main GM Factory Vortec, Edelbrock's Performer Multi-Point EFI. I tow a large fifth wheel trailer with RPMs between 1800 to 2500 typically. Eric, we can program for EGR delete, cost would be $ 495.00 and would also include the performance tune . can you tune it Perform with these upgrades, We would like to have ordered the 7.4 custom tune ,but appearantly you are out of stock at the moment.Is there any time frame when you will have more modules.I would like to send you mine but I need my vehicle.Also we would like to have had the reasonable price. Thanks to a maximum impeller speed of 65,000 rpm (racers go even higher) and a peak efficiency rating of 78%, the Vortech YSI was capable of supporting over 1,200 hp at 30 psi. For a plain jane Sierra, not bad in my opinion. 16238212. This engine series was utilized on Chevrolet and GMC large truck models such as the Suburban from 1996 through 2001. Buy your ELGIN Industries HL-7003S Hydraulic Roller Valve Lifters set at Amazon. I am doing a full engine swap from a damaged motorhome to my older motorhome. Most generic tuners only change very basic parameters within the computer, whereas UltraPower Tuning changes approximately 400 parameters including both engine AND transmission settings. I've noticed a significant performance uptick, but it seems to fall flat in the upper mid-range, almost seems like it could use a MSD multi spark discharge, I don't know, but I'm considering having a dyno test to see what is happening. I have a uhaul topkick with the 7.4. This cam is designed specifically for the TBI 350 small-block and specs at 194/214 degrees of duration at .050-inch tappet lift with .398/.442-inch lift. Yes, we can tune your L21 for similar gains as with the L29. Yes, we could accept the PCM from your '98 as the core. The 8.1 Vortec was produced to compete with Dodge's 8.1 Magnum V10, and Ford's V10 Triton engines of the time. The 7400 was essentially the same big block 454 that powered Chevy through the muscle car years, but with improved cylinder heads and a hydraulic roller camshaft, it was far more efficient than the old LS6 could ever hope to be. Some parts are not legal for use in California or other . as much as possible im going to do a cam exhaust and injectors and intake so my questions are what do you think my gain would be with your pcm and can it be piggy backed with a plug in tuner thanks matt, would i be able to get a retune if i add a cam after, and what is the turn around time, thanks. Been reading the net the last few days on power upgrades for my truck after reading the "best year diesel" thread on here. Thanks. I was thinking about removing the catalytic converter and was wondering if your reflash will delete the "check engine" light that will probably occur when I cut it off? The stock Vortec iron head will not tolerate more than .440-inch lift. Yes, all gains listed are with 87 octane gas. This engine has two valves per cylinder and features multi-port fuel injection. No where near diesel power my ass. way stronger than a stock 12v, 6.5, & 7.3 powerstroke by far!!!! We'll send you the most interesting Street Muscle articles, news, car features, and videos every week. The tire are one size larger than stock to the speedometer is off a little. Thank you for any information you could give me. Yes that would be fine, you would just need to call in to our service department and schedule a date :). We CAN tune the engine computer with our UltraPower tuning to get more performance but we MUST have you send your PCM in to us for programming as it has a unique PCM that we don't have cores for. 800-417-4559 Jay, https://www.ultrarvproducts.com/UltraPower-GM-Workhorse-7.4L-(454)-Custom-Tuning. We use cookies to ensure that we give you the best experience on our website. I'm saving up for the banks power pack system. This modification won't be cheap or easy to install, but will eventually pay for itself if you do a lot of towing or drive a lot of miles. a good set of headers help to. Alright Jay! I have a 2000 3500 454. Buy your Chevrolet Performance 454 crate engine from JEGS High Performance today! At times I get a dtc for bank 1 and 2 too rich. The Chevrolet 454s of the 1970s were the most powerful, with the LS5 producing approximately 360 horsepower and the LS6 generating around 450 horsepower. Could you do a downstream 02 sensor delete? You can definitely hold on to your PCM, that is not an issue. What are your recommendations?? Roller Lifters 5. The Gray, the green with white strip and the black test grounded. There are a lot of variables that play into the exact gains we can achieve but I would say somewhere around 45-50 HP and 60 Ft Lb. Any "recalibration" would require sending your ECM to us for programming changes. I THINK I want a diesel until I look at the prices. I wish we could say for sure that you will be able to see a nice gain but we try not to over-promise on that. Vortech supplied a pulley combination that included an 80-tooth crank pulley and 32-tooth blower pulley which provided a drive ratio of 2.5:1. Solenoid resistance: 12.5 Ohms. Sorry I dont have the VIN, the truck is not local, I have a 1998 2500 7.4 Vortec GMC Suburban. Later i want to install the banks PPB 49070 package on this motorhome next year. Do you still tune the 96 ecm? I am considering some performance upgrades to my 2000 Winnebago Brave with the 7.4 liter engine. We would recommend speaking directly with a camshaft manufacturer to determine the best for your particular engine. Truth be told, Vortech offered a number of Maxflow Aftercooler systems but we selected an intercooler core we had on hand for testing. I fought this truck with the cats deleted and air pump disabled. How To Add 70 Percent More Power to A Chevy 454 V-8. The stock injectors are fine for our performance tuning. Nothing I was finding really listed ACTUAL upgrades. The state of California requires that this warning be posted for people purchasing products that reside in California. Thanks for any help. 5. Straight Port Cylinder Heads 6. Pindar I dont have the 2000 VIN only the VIN from my 1995. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Great motor and runs strong with gobs of TQ. Turn around time is 1-2 business days. Gasoline engines do not require different settings for different conditions like a diesel engine does. 98 Single Rear Wheel 3500 7.4 Vortec. Does this computer hav egr delete programmed into it. See listing details. My question is what cam you would recommend for towing? It was bone stock 2x4 extended cab dually. The old, weak 240 HP 454 is every bit as. You may also like. The engine receives cooler, more oxygen-dense air through a chilly air induction system. It was produced as a gas alternative to the new Duramax LB7 diesel, offering a high-torque gas engine capable of towing just about anything. Yes, it definitely will. I have a 1996 Winnebago with a P30 chassis and a 454 75,000 miles and runs great. The Vortec 8100 (RPO L18) is a V8 truck engine. Yes our tuning does work for trucks as well. the Vortec 7400 (454) that came in that suburban is one hell of an engine, there are also many things you can do to get more mileage and power out of it. Buy your Big Autoparts Ignition Distributor Set DR474 DR331 at Amazon! I wouldn't mind an EGR delete for the part throttle improvement and a cleaner intake, but mostly I would like to keep everything else functioning, I am looking for more torque below 3,000 rpms, ideally in the 1500-2500 range, because almost all of my driving is in that range. Free shipping for many products! With the intercooler assembly in place, we once again ran the blown big block in anger with amazing results. General Motors debuted the 7.4 Vortec in 1970, one year before emissions requirements were tightened and three years before the gas crisis hit with full force. Our tuning is custom to your vehicle so if you ever did have a dealer flash the computer it would wipe out the performance settings and revert to stock. Find many great new & used options and get the best deals for BBK Performance Parts 1710-XD GM VORTEC 305/350/454 80MM POWER PLUS THROTTLE BOD at the best online prices at eBay! These Chevy 454 Vortec engines made 290 horsepower and 410 lb-ft. Chevy 454 HO Crate Engine Vortec 7400 engines were the final version of the 454 used in production vehicles or trucks. 4.56 might be abit tall. Chevrolet BB Gen 6 454-502, '96-'00 Camshafts at Competition Products! Im doing a full build on the motor Ive been told that these injections systems dont do well with these kind of upgrades. The LS6 was discontinued after 1971 because of tighter emissions controls, and the LS5s power had dropped to about 245 horsepower by 1973 as a result of more stringent emission standards. When you buy a single component or a complete kit, like a camshaft, you must ensure that it is suitable for your car. 7.4 chevy engine in georgia boy pursuit motorhome. Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. Chevrolet Performance's 454 HO crate engine is a Big-Block bargain - an affordable engine with performance specs that will make you think it's 1970 all over again. A restrictive or clogged air filter will force the engine to work harder to breathe, which makes it less efficient. 1997 gmc 3500 cc dually. The L29 454 was originally rated at 290 hp and 440 lb-ft of torque thanks to a combination of fuel injection, large oval-port heads (to replace the peanut ports used in the previous Gen V motors) and a slightly higher static compression ratio. Is the pcm that is used a 411? That model of 454 is alot diffrent then gen 1..It wont take a normal cam and theres some other diffrences that kinda limit what can be done to it.im sure someone will chime in with specifics Yes, it's a OE roller camshaft block and 1 piece gasket crank. better yet have it tuned (Brian Bosch I believe is the man to talk to about . I have a few questions so bear with me here. This upgrade will not only improve overall top end power but it also . The GM 7.4L UltraPower ECM has long been the ultimate performance modification you can make to your GM 7.4L powered RV or truck with the highest power gains on the market! Do you offer anything for the 5.3? torque so it will definitely be able to hold the upper gears better when hill climbing and have improved acceleration. Makes NO permanent changes to your vehicle's computer! Performance Street, great low to mid-range. Whether your power boat is running boost or naturally aspirated, we have the correct performance parts for your application. However, this engine was developed mostly for large towing ability for CAFE-exempt passenger cars, so there is still room for improvement. It is quite a noticeable difference! will your new part ecm work on this motorhome. The greater the power gains, the bigger the budget. Stage 1 Upgrade for Mercury 525 EFI. We can adjust for speedometer error. Gains with the modifications you have done would be around 45 HP/ 45 TQ. I've made several performance upgrades myself, but are always looking for something better. Yes - We can definitely take advantage of the current modifications done to the truck and really help it out. Check the make, year, and model of your car to see if the VIN number is available. Our kits include camshaft, lifters, piston rings, pistons, both rod and main bearings, cam bearings, timing components, oil pump, frost plugs and gasket set, with an option to purchase a crankshaft as well. Do you folks know of cam upgrades along with tuning that would give power upgrades on a l21 with a manual transmission ? It was utilized in both performance automobiles and trucks, as well as maritime and industrial applications in various combinations. Whats left, though, is a 454 cubic-inch big-block Chevy with huge potential. It was also noted to have more power for gasoline engines. Temperature measurements taken before and after the carburetor revealed that the fuel cooling dropped the intake charge temperature from 235 degrees (before the carb) down to 120 degrees (after). UltraPower 7.4L ECM Benefits: Gains of 40-45 HP and 45-50 lb-ft torque depending on existing upgrades Gains of 1/2 - 1 MPG Maintains speed and higher gears when climbing hills Free shipping. Can I reprogram on the fly as conditions change and performance needs warrant a change?? We would reprogram yours and put it in a new case so it looks nice! Jump to Latest Follow . Then, in 2001, GM dropped the 7400 and 454 combination in favor of the final powerful big block, the 8100 496-cubic inch engine with 340 horsepower at 4,200 rpm and 455 foot-pounds of torque at 3,200 rpm. BBK Performance Parts 1710-XD GM VORTEC 305/350/454 80MM POWER PLUS THROTTLE BOD. That said, the main internal differences between the L29 and L21 is that the L21 has forged pistons and crankshaft. Now, that poses the question: what would you shoehorn this big-block Chevy into? Our typical turn around time is 2-3 business days. The banks system will give you 70hp and 85lb-ft. Dedicated to making your Chevy Truck bad***. Will the UltraPower tune, give me the "best bang for my buck" performance increase? Primary or Expansion Gauges And Upgrade Kits (52mm) For 2008+ OBDII CAN bus vehicles, Upgrading SIx-Gun, Economind, and SpeedBrake, or use with BBus Sensor Modules. Give me some idea as to what this product does exactly, and how I will benefit from spending $$ on it. Make use of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. The 454 cubic-inch 7400 Vortec V-8 GM motor, which produced 290 horsepower at 4,000 rpm and had 410 pound-feet of torque at 3,200 rpm, was a smooth four cylinder without much difference between the top and bottom. Return shipping is included , you are responsible for shipping to us , however if you choose the "core charge" and order the ECM , we can provide a return shipping label for your core and deduct from the core refund. We are running about 2-3 days on turnaround right now. A cold air induction setup will feed the engine cooler and more oxygen-dense air. Next best upgrade you can make is the Banks TorqueTube headers (, We recommend these injectors:https://www.fiveomotorsport.com/bosch-oem-454-j-code-884-black-knight/. 496 cubic inches. If they were cheap enough, sure. do you think I could get more power with your ecm re-program? I straight wired it to test it and it will run. It is bone stock except for tow mirrors and Kodiak door handles on all 4. We can tune it if you can build it :). With the baby stock cam they made 290hp and 415 ft lbs of torque. He could even be found working on tractors or hay bailers while on vacation at his uncles farm. But don't despair. Free shipping for many products! Would we still get the good price when you get more control modules in stock? To find out just how much the 30-year-old behemoth could muster, they took it to Westech Performances dyno room. You might also want to consider a high voltage coil, high performance 8 mm spark plug wires and a set of quality aftermarket spark plugs to help your engine ignite more of the fuel that goes through it. What sets us apart from the others? Of course, the guys wanted to see what the old iron block had in her, so they ran a baseline test. I'm interested in the available upgrades for the vortec 454. 2019 Rodney W. Brazel Inc. - Ultra RV Products is a Division of Brazel's RV Performance, UltraPower GM / Workhorse 1998-2000 7.4L Vortec (454) Custom Tuning, within 24 hours from the order date. The old camshaft came out, too, with a meatier hydraulic bump stick with 0.600 inches of lift taking its place. GAS MILEAGE. Interested, but don't want to buy one to find out i've already got it :D (my unit has 2 previous owners i think). Install an aftermarket windage tray in your engine. The exhaust does not have CATS with dual to the muffler and single exit tailpipe. I am upgrading the fuel injectors with the new Bosch III's and the plugs and wires. WARNING: Products may contain one or more chemicals known in the State of California to cause cancer and/or birth defects or other reproductive harm. If it is a 1998 then yes you can. It would be a good idea to re-tune for the Banks and injection systems. The compression was plenty low for use with the blower, but the extra power it provided would eventually be multiplied by the boost. Oil tends to collect on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons) and reducing horsepower through parasitic drag. Headers suggested. The Vortec 8100 was built off of the GM 454 engine platform, also known as the 7.4 Vortec. Engine is in stock configuration with no upgrades. That represents a 70-percent increase in horsepower. It is not 4x4. Also how much benefit do you think I would gain by going aftermarket catback exhaust. It specs out at 265 HP@4500 RPM and 340 ft/lbs of torque@3500 RPM. What type of gains could I expect with a tune for this? Purchase a Chevy 454 crate engine online from JEGS High Performance. GMC 7.4L/454 JET Performance Parts and Accessories Brand: JET Performance Make: GMC Engine Size: 7.4L/454 Individual Parts Part Groups In-Store Pickup Results 1 - 25 of 117 25 Records Per Page Default Sort JET Performance Programmers 15024 Computer Programmer, Chevy, GMC/Cadillac, Fullsize Pickup/SUV, 4.3L/5.0L/5.7L/7.4L, V6/V8, Each Cost would be $495. Most ordersare shippedwithin 24 hours from the order date. $399.99. I know that my question is very reduntant but I need to ask it .I pull a trailer and want a little more tow po1wer. That extra air entering your engine must go somewhere; a full aftermarket exhaust system like this is always beneficial to fuel efficiency, especially when combined with a freer-flowing intake. Can i tell if my RV has this already? I have the 411. 12568774 438 HP @5300 RPM 500 LB/FT @3500 RPM 1 2 Updated Design The 454 HO features an all-forged rotating assembly for great strength and durability. They seem to be similar to those used in your RV work. We don't however specialize in forced induction applications so we would not be able to help you with that. We've had a lot of issues with 1996 & 1997 PCM's so for the moment we are not tuning those. If you would like to place your order feel free to give me a call at 800-417-4559. Yes it would, the Banks PowerPack is helping the engine breathe better but the computer is not doing anything to take full advantage of it. This is a crew cab, 8 foot bed. Mark McNabb was a contributor at TopSpeed from 2013 to 2018. $119.95. Even stock we see impressive gains but even more so with the Banks PowerPack installed. If you are placing an order to ship outside the United States, Shipping Insurancewill be required and added automatically at checkout. We will safeguard your e-mail and only send content you request. Windage trays are thin, sheet metal plates that bolt to the bottom of the main caps and act as a barrier between the oil in the pan and the crankshaft counterweights. 454 L29 Power Upgrade. I own a 1998 Safari Trek 2830 P32 chassis with an L29 28'7" Class A RV Drivetrain it s completely OEM.. I have had a hard time finding much of anything for these engines. No videos but your ECM is fairly easy to identify and replace. If I send in a functional pcm for my Suburban mentioned in last question whats the average turn around for it? Painless Performance 60211 Standard Length MPFI Harness for 1996-2000 GM Vortec 7.4L V8, Innovative Performance Chip/Power Programmer, Big Autoparts Ignition Distributor Set DR474 DR331, ELGIN Industries HL-7003S Hydraulic Roller Valve Lifters set, Painless fuel injection wiring utilizes all new TXL wire, OEM fitment connectors and grouped harness breakouts making for an easy install and saving you from using old re-worked wiring; Machine crimped terminals match OE quality. and will it improve my over all power? There was plenty of power left in the YSI, but at 847 hp we couldnt help but be amazed at the extra strength GM put into the design of their 290-hp big block. Hot Rod decided to bolt up some typical speed parts. A/T Flywheel, Hedman TEMS headers, and all the other good stuff that goes with a long block. from your CUSTOM TUNING,ECM, J'ai l'intention d'amliorer l'ordinateur de mon VR, par un model ULTRAPOWER mais avant d'acheter, j'ai besoin de savoir quels fuel injecteurs seront le mieux adapts ( conomie et rendement ) avec le nouveau module? Steel Camshaft 4. Wiring is the same. Your email address will not be published. Windage trays are thin, sheet metal plates that fit over the bottom of the main caps and act as a barrier between the oil in the pan and the crankshaft counterweights. I just bought this 97 suburban 4wd with the bbc. I'm sure there are other differences that would need to be addressed but you should still be able to re-use the original key and ignition harness. Change to a synthetic oil that is light-weight. 7.3 is 250-275/505-525 stock. It was only designed for Chevrolets high-performance vehicles, such as the Chevelle and Corvette, and there were claims that engine horsepower output was actually underreported by Chevrolet during the muscle car wars. Im also trying to get more out of this engine without tearing into it so I was just hoping this fixed my gauge as well. This is not an automatic check, it is performed manually by a parts specialist once the order is placed. The terms ECM, PCM, and VCM are all used to describe the engine computer by various manufacturers, yours is located above the radiator . The Vortec enhancements simply allowed GM to pass smog at a higher RPM. Naturally, the truck-based 454s. Thank you. Only tow rigs I have used to pull my Jeep with was this truck and my DD Driver 5.3 Tahoe. . Howards, Hydraulic Roller Camshaft, Chev BB Gen 6 454-502, GM, Chev BB Billet Steel Hyd. It may or may not have a decal on the ECM depending on if they did a mail order tune or came in to our shop. Some of which are going with an upgraded ignition, headers, removing the cats and having the computer flashed to shut down the secondary O2 sensors. The valve train is OHV with two valves per cylinder and multi-port fuel injection for fuel induction. I do still have all the O2 sensors but would like to delete them if possible. Obviously different, but I still think the 454 has more to offer. This mod will not be inexpensive or simple to execute, but it will pay for itself if you do a lot of towing or drive a lot of miles. As long as you don't have any emission systems removed, you will pass without any issues. http://www.cumminsdieselspecs.com/cummins_timeline.html, http://www.internationalpowerstroke.com/timeline.html, http://www.duramaxdieselspecs.com/compare_duramax.html, Tow rig Suspension and Axle upgrades questions (4th Gen Dodge). I would like the biggest bang for the $. Some differences are: 1. Hi Warren, that is definitely something we can tune for. And a k and n filter. Body Diameter: 16 mm. I have been watching lots of posts and things get carried away very quickly about getting big big hp. Orders placed on the weekend or after cutoff on Friday, and orders placed on select holidays, If you will be sending us your ECM for reprogram you will need to select "Remove Core Charge". If you can supply me with your VIN and any part #'s that are on the ECM I can do some research. Very interested in this. Learn more. The tuning is custom to each vehicle depending on calibrations, modifications and any special requests. There should be no reason to ever need to reprogrammed in the future and if you needed a replacement PCM we can take care of that for you. Thanks. Can you reprogram and net me the same HP & TQ numbers as the L29? This is a stock style setup, featuring a 4.000" stroke and bore sizes ranging from 4.250" (standard) to 4.375". I think they were made before Chevy started using real tornados. Safely gain up to +35 HP and up to +5 MPG in fuel mileage in your vehicle by safely optimizing your air/fuel ratio and timing curve for increased efficiency! From my experience, the HyperTech programmer for those engines is pretty generic and does not make very many changes in the programming. It went through different upgrades over the years finally ending with the 454 Vortek which stopped production in 2001. youll have to stick to a torque cam because of the computor needs vacuum (speed density) headers will help greatly. It has an ohv configuration with two valves per cylinder and a bore and stroke of 4.24 inches x 3 on the intake side. Stronger shift points for towing and power. Performance computer re-calibration and a Custom High flow Billet Flame Arrestor that increases the maximum power by more than 25 HP* and 30 pounds of torque*. The Vortec 7400 was based on Chevrolets 1995 7.4-liter 454-cubic inch V8 big block, which produced 230 horsepower. Probably cause no cats. Don't know how tuning would work. Also the torque management. Subtract the standard .050-inch clearance, this leaves only enough room for a .420-inch lift cam. Thanks, WILL THE 2000 1 TON DULLY I HAVE STILL PASS CAL SMOG WITH THIS TUNE UP EMC. Following up from previous question, here is the VIN 1GDG6H1BXYJ907917 and #s off the ECM, 09384681, sev. We have a complete Banks Power System and Banks Air Flow. How much will the customization cost me? Injector type: US-CAR, saturated. It wasnt the best moment to put out a big cubic inch big block designed for performance vehicles, but the Chevy 454 made an impact. Is there any way I could send you that one as a core in return for one to work in my 2000? Normally, advancing the distributor would increase octane sensitivity and possibly fuel economy, but the upgraded ignition system will allow you to do so without adversely affecting fuel burn or horsepower. The C/K 3500's standard engine is a 5.7-liter V8 OHV 16-volt FI engine, and the 454 engine comes as an optional upgrade.