Select a vehicle category below, or look through all of the products we offer for Dodge Cummins Motorhomes. The following message is posted for John S, who needs our help on this subject. So when I gas it from 8*, it runs 8* until the motor can't take the fuel and backfires. Note* this post assumes that you already know how to time a running engine, just not one that never been run before or has had its distributor removed and its timing settings lost. Hello all, Last year there was a very good thread on 454 engine overheating problems, with some very good responses and solutions to the problem. Spoke with RV repair facility and they said they set timing without disconnecting the secret wire that is to be disconnected before setting timing. I am considering some performance upgrades to my 2000 Winnebago Brave with the 7. Our selection of engine parts runs the gamut from exterior parts like mounts , accessory drive belts , and sensors , to internal hard parts like camshafts , pistons, and rings. 47,000 miles in a motor home. Car and Truck Repair Parts. plastic timing cover with crank sensor. The Chevrolet Big Block V8 Engine The Chevrolet Big Block V8 In its most familiar and long-running format, the Chevrolet Big Block was Introduced in 1965 as a 396 CID powerplant and from that time forth, it has earned its own place in automotive history as one of the most well known tour-de-brute-force engines on the market. Confirm that the base timing is correct with engine at full operating temp and the timing connector disconnected. With the 454, putting in Vortec 350 code and chaning the displacement and enter in the tables/constants/switches appropriate to the 454 is all that is needed. 1986 LB9 V8 9. The crankshaft sprocket features three keyways to allow you to advance or retard your camshaft with using offset keys or bushings. Considered sacred in ancient times, dates were mentioned more than 50 times in the bible. 00 Ford 351 Windsor 345 HP High Performance Balanced Crate Engine $ 3,195. If one reads the actual articles by G5RV himself, he points out that his antenna could also be implemented by running the open-wire line (the real thing, not "window line") all the way to a "tuner" in the shack. 460 engine I would assume from your post that you are shopping used since the 454 is now known as the Vortec, even though it is the old 454, reworked and the Ford is not the V-10 which is actually a 10 cylinder 415 cid engine. 3CTA 300 Cummins, 12 BTDC Timing, BD Diesel #5 Fuel Plate, Borg Warner SV366 Turbo, K&N Motorhome Air Filter, 4" Resonator i. I have 2 connectors hooked up to the distributor. The car then seemed to run good until I went up a hill. I have replaced the Coil, Int Module, Pickup coil. We recommend a high rise dual plane with the. Engines with timing pointer on the top,Upper right side of engine looking from the front. Banks Products for DIESEL MOTORHOMES - CUMMINS. First post here. I can turn a wrench pretty well myself but it's always a struggle to figure out what is really beneficial for the 454 in a Motorhome. For 1987 ad earlier applications Need more power? This engine combination would be outstanding in your car, street rod, truck, 4X4, or marine application. I've got a 1964 283 in my 32. Those '80's HEI's had a problem with that. Find many great new & used options and get the best deals for Chevrolet 396 402 427 454 RV Torque Camshaft Lifter Timing Kit 16 Lifters Zinc at the best online prices at eBay!. There are many others that will do the same thing but the 1227747 is most well known and documented and will be the basis for this article. It's Chevy's turn as Mike and Joe build a classic 454 big block engine on a skimpy budget of 25-hundred dollars. There is one on the upper left portion of the timing cover which is rusted and I can't read any of the marks. Help is just a click away! Camshaft Timing Tips. Considered sacred in ancient times, dates were mentioned more than 50 times in the bible. Problem: I can get the engine to run at one speed and load okay, but it won't run right if I try to speed it up or slow it down. Anyway, here's the timing set procedure from our service information. Stock 454 tbi everything I've read says 4 degrees timing btdc. Even with all of the right tools, tearing down a block can test your patience, and I recommend having the shop that's going to clean the block also remove all of its plugs. I live in western Canada, and have since made several trips into the rockies. 0L(305CID), 2. Are you searching for Chevy Cam online? Locate Chevy Cam on sale right here with the biggest choice of Chevy Cam anywhere online. Under the hood will be the timing setting value on an information sticker specifc to your engine. Posted By: pimpinfresh1986 on 01/11/15 01:33pm I have a 1990 Fleetwood flair with a 454 tbi so far I have replaced fuel filter, ignition control module, injectors checked all fuses and still im getting no initial primer shot but if I pour gas in it it will start and then stall soon as gas runs out could it be the ecu or ecm and what is the fuel pressure supposed to be and could it be something. 5 diesels! Call 1. head #906or 062. Connect the timing light power leads according to manufacturer's instructions. the place to discuss religion/politics or other contentious issues,not for the faint hearted. Notes: This engine is configured for a mechanical fuel pump. Build your model with resin parts the way you want it, custom and unique. Only after 10 miles of driving does the engine backfire up the intake under load. a vacuume gauge shows late ing timming. Hard to test them FPR's, one they have to have the intake off to see them, and 2, you can't get 4 bar with a vacuum pump, mine tested perfect and 100% the same as a new one on the bench, but. I have replaced the Coil, Int Module, Pickup coil. Read reviews, browse our car. All of these can affect the idle. 44-inch bores and 3. It makes long black marks on streets. 5”full color touchscreen and much more! The throttle body will support up to 500 horsepower naturally aspirated. The GMC Motorhome was manufactured by the GMC Truck & Coach Division of General Motors for model years 1973–1978 in Pontiac, Michigan, USA — as the only complete motorhome built by a major auto/truck manufacturer. Will it make more horsepower than their recent Ford budget build? The dyno will reveal the answer. Although the 454's use in muscle cars declined rapidly after its introduction, the engine was used in trucks such as the GM 2500 and 3500 until 1996. Motorhome Forums, chat rooms and discussion. 85-inch (98 mm) crankshaft stroke of the 460 cu in (7. RVs on Autotrader has listings for new and used National RV Dolphin RVs for sale near you. The timing cover that comes with this engine will only accommodate a late model single roller timing chain. ok guys I've got a question about this RV cam deal. With over 35 years of experience in automotive machining, you will not find a more trustworthy and reliable source of parts. Under the hood will be the timing setting value on an information sticker specifc to your engine. PM me and I will pull the manual. Wsm Mercruiser Omc Timing Cover Seal - 7. In an effort to simplify what actually happens inside an engine, COMP Cams® invites you to "take a walk" inside a typical engine, just like the one you might have in your car. 454 Gen V Simple Build I've seen where many have said this engine isn't worth building for performance but I don't want it to be a dragster. Browse your favorite brands affordable prices free shipping on many items. The only thing bad that I have heard about a 454 is the same oiling issue that the AMC V8 has. favorite this post Oct 11 2003 Chevrolet Blazer $900 (Owasso) pic hide this posting restore restore this posting. To learn more about the quality camshafts provided by Enginetech, contact one of our Sales and Service Pros at 1-800-869-8711 or send an inquiry from the form on the contact page. I have a 95 Chevy 3/4 ton 454 ext. Shop for discount 454 Engine Kit here. Start the engine, and aim the timing light at the timing mark. The HEI system that most of our Motorhomes use works well with the EFI system but does not permit timing adjustment. I discovered this a couple of years ago. the place to discuss religion/politics or other contentious issues,not for the faint hearted. The motor started good and ran well for the first 10km out of town. I will check the timing this weekend. CAR RESTORATION HOW TO How to Replace A Distributor Without Going Crazy. Re: 454 chevy engine in motorhome: Norman: 11-3-12 : We have a Chevy 454 injected engine in our motorhome and when engine is cold it runs good but around 15 miles into driving it starts backfiring when accerlating or strain against engine. Anyway you cut it, those engines are not designed for motor homes. 90% of the break-downs and mechanical woes are from gasoline motor homes. The LSX 454 crate engine is a 21st-century upgrade to the legendary Chevy 454 big block race engine - see images, dyno specs, installation info and more. 460 engine I would assume from your post that you are shopping used since the 454 is now known as the Vortec, even though it is the old 454, reworked and the Ford is not the V-10 which is actually a 10 cylinder 415 cid engine. 3 PSD but its not in my budget. I'd appreciate your opinions on which of these power plants is best and if there are any "gotchas" I should be aware of. The correct general term is a "Motorhome P Chassis". So I will fill with the highest octane available when I move the motorhome, then let you know if it solves the dieseling problem. In other words. It's amazing how we all share the exact same issues with the 454 engine. I've got a 1964 283 in my 32. Timing Belt Repair & Diagrams for your 1988 V8-454 7. This procedure works better with two people to set the distributor. what can i do to better my mileage? Let's do this cheapest to most expensive: What kind of gas do you use?. This drawing is of the 1967 version of the 302 cid Chevrolet. com, the official website of Sport Truck. We have some questions, but, first, some facts:. 19 20 camshaft application chart notes: comments mech/ dur @. Is says that if timing marker is on top ( one o'clock position as you look from front of engine) to use the #1 plug and if the marker is on the bottom (7 O'clock position) to use the #8 or #5 plug. 4 liter 454 big-block engine that was built by Accurate Engines in Michigan and installed August of 2014. It is easy to overload the 26' coach's in excess of the GMC ratings of 11,700 lbs or exceed a tire's D load rating. Plus, a trip to the annual NHRA Hot Rod Reunion in Bowling Green, KY. With older engines, detonation limits the timing advance. 454 Runs Rough. The only problem that I am aware of is that the power steering pump leaks a little. 3L? the timing specs are 17 to 18 degrees btdc. Start Up Timing is locked in and the air-fuel mixture is slightly enriched by the Start Solenoid Valve. For 1987 ad earlier applications Need more power? This engine combination would be outstanding in your car, street rod, truck, 4X4, or marine application. Cutting-Edge RV Advantages. Remanufactured Engines Chevy Big Block. still not running. When I bought it the rv had not been started for 2 years there was only 30k miles on it. So they only got the Black Box PCM on them. Shipped with the Pro-M EFI base tune right out of the box! This computer is also water and shock proof! Learn More. It makes long black marks on streets. Skip to content. If you are trying to find the correct. Chevrolet 305 V8 Engine. Read any RV magazine and check out the mechanical questions posed by motor homers. CHANGING THE ENGINE IN A GMC MOTORHOME Preface to engine removal Taking the engine out by lifting and moving to the center door was, I believe, pioneered by Darrel Winterfeldt sometime in the late '80s and has become the method of choice. com FREE DELIVERY possible on eligible purchases. Can anyone offer other things to look for?. Re: RV with Chevy 454 engine problems: James Convery: 8-4-14 : I have a 1983 Monaco rv with a 454 motor. it has - Answered by a verified RV Mechanic. At idle engine runs fine but when put under a load engine shutters, backfires and clanks and has no power particularly uphill. Find 454 Marine Engine and save. Flattappet hydraulic cams are the bread-andbutter cams of Chevrolet production engines. In 1992, a balance shaft was incorporated in this engine, which necessitated a third timing chain setup to drive both the cam and the balance shaft. Drawings by David Kimble. This is particularly important when attempting to crossbreed major components between different engine series, such as Mark IV, Gen V, and Gen VI engines. hurricane special! we beefed up our camshaft stock to offset a possible shutdown from hurricane dorian. This is a little how-to for setting the initial ignition timing on a small block Chevy before its ever been run. I have towed 10K with mine (99 Burb 454) and it was very much at home towing heavy and got 9-10. The normal engine temperature for a 454 could be anywhere from 180 degrees to 220 degrees fahrenheight. The parts required for the complete timing belt service will cost up to $150, but the labor is the majority of the job. 454 engine vs. Do the rear main seal, timing set, and front seal and put her back together. Browse your favorite brands affordable prices free shipping on many items. Buy or Sell RV brands Coachmen, Forest River, Heartland, Jayco, Keystone RVs. Fuel pump pushrod is not included. I was incorrect about the statement that I said early in posts. Shipped with the Pro-M EFI base tune right out of the box! This computer is also water and shock proof! Learn More. Runs great when cold. I have a 2000 vortec 454 with a more aggressive than stock compcams camshaft also. These heads offer superior flow characteristics and are available with either a 320cc or 360cc intake runner. I wrapped the exhaust with insulation ,and covered the starter with a reflective cover and still have the problem?. New and Used Car and Truck Parts and Accessories On Sale. Free Shipping! Chevrolet Performance's 454 HO crate engine is classic in its own time, offering enthusiasts an affordable Big-Block combination with performance specs that will make you think it's 1970 all over again - with 438 horsepower and 500 asphalt-wrinkling lb-ft of torque. Re: 454 chevy engine in motorhome: Norman: 11-3-12 : We have a Chevy 454 injected engine in our motorhome and when engine is cold it runs good but around 15 miles into driving it starts backfiring when accerlating or strain against engine. The dash mounted ignition timing control is the perfect complement to the knock sensor because it allows you to retard or advance the ignition timing without leaving your seat. Most of my 454 customers are 1 ton, suburban or motorhome customers, so I am going to build a torquey TOW beast. The line on the balancer or pulley will line up at the timing mark. I need the ignition timing specs for a 1986 Chevy Suburban 454 - Chevrolet 1986 Chevy question We own a 1988 coachman motorhome with a 454 chevy motor looking for. We then removed the water pump, damper and front cover to provide access to the timing chain and cam retaining plate. Can anyone offer other things to look for?. I'm talking about smaller motorhomes not high dollar diesel pushers. Replacing the timing belt when indicated is cheap insurance, and we can supply you with everything you need including tensioners and idler pulleys. It's Chevy's turn as Mike and Joe build a classic 454 big block engine on a skimpy budget of 25-hundred dollars. com offers a listing of Gates v-belt cross references including banded, Kevlar, cogged, metric v-belts, and more! Find cross reference charts online today. 4L 454 tbi in it. Like the true compression? Did it have forged domed pistons or flat top? Cam size duration and lift? Solid or Hydraulic lifters? What type of head (open or closed chamber) and valve sizes? Carburetor size? What type of intake? Please list any other important facts about these engines. CAUTION: You must recheck your piston to valve clearance after advancing or retarding you camshaft timing. Bounder features a driver-centric and ergonomic design that's great for RV owners and their passengers. it has - Answered by a verified RV Mechanic. Ignition Timing for Modified Engines An often neglected but important area when tuning an engine is the ignition system. Stock 454 tbi everything I've read says 4 degrees timing btdc. head #906or 062. I hope you guys on here can help I have a 454 that was in a 1984 pace motorhome. 4L (454) Custom Tuning module. timming on a 1998 chevy 454 motorhome. We recommend a high rise dual plane with the. 1L Vortec V-8 specs, history, and horsepower and torque curves. It is also the timing at idle with full vacuum advance. We both have a little experience working on cars, but, we also have a lot to learn. 667hp complete engine. Examples include the LSX454 rated at 620 horsepower and the 454HO rated at 425 horsepower. It's Chevy's turn as Mike and Joe build a classic 454 big block engine on a skimpy budget of 25-hundred dollars. Set and Adjust Ignition Timing THE RIGHT WAY on GM Add 231 Horsepower to a Motorhome Engine With Bolt-On Parts!. I Didn't have any problem at all with timing. The 454 installed in motorhomes cannot disappate enough heat leading to overheating climbing grades, hot weather, hauling or just when it seemed like it wanted to! Cracked exhaust headers are way common due to this. 1 liter engine was great. Re; diesel engines in motorhomes- I've often wondered the same thing. Best Answer: You need a timing light. Most of my 454 customers are 1 ton, suburban or motorhome customers, so I am going to build a torquey TOW beast. 78 440 engine horsepower rating: joe from nj: 12-31-05 : I have the chance to buy a 440 engine from a 1978 dodge motor home can anyone tell me the horsepower rating of this engine and what was the last year of production of this engine and is this engine internally balanced or externally balanced thanks again joe nj. All of these can affect the idle. I have been looking for answers on this motor and set up for weeks and still don't know anything about it. My L29 is a 98 Suburban K2500 7. A crate engine is a great way to add power to your vehicle. 19 20 camshaft application chart notes: comments mech/ dur @. Set and Adjust Ignition Timing THE RIGHT WAY on GM Add 231 Horsepower to a Motorhome Engine With Bolt-On Parts!. When I bought it the rv had not been started for 2 years there was only 30k miles on it. Dollar for Dollar, it is highly unlikely that the $2400 for a full blown Banks Power Package would yield the same cost/benefit as say the addition of the UltraPower GM / Workhorse 7. Begin by scraping off any gasket adhesive and the worst of the built-up grease. favorite this post Oct 11 454 big block Chevy motor and extras $700 (Owasso) pic hide this posting restore restore this posting. Get the best deals on Complete Engines for Chevy 7. I've been a diesel guy for awhile and know nothing about big gassers. First post here. Build your model with resin parts the way you want it, custom and unique. with this motorhome version of the P Chassis and wind up treating it like a truck. Re: 454 chevy engine in motorhome: Norman: 11-3-12 : We have a Chevy 454 injected engine in our motorhome and when engine is cold it runs good but around 15 miles into driving it starts backfiring when accerlating or strain against engine. Re: 454 chevy big block engine 1996 motor home pace arrow: Rob: 2-10-04 : Two motors in the bin, wow i would be crying buckets, you need to get a profesional on to your motor and set it up right for you, you can hear if a motor is pinking because of pre-ingnition,to lose two motors is terrible, get some local hands on help Jim it sounds as though you could do with someone showing you the way. hurricane special! we beefed up our camshaft stock to offset a possible shutdown from hurricane dorian. Lots of readers at Rvers Online have asked, either explicitly or implicitly, which "way to go" when selecting an RV. Should the timing chain need to be changed, replace any timing chain guides that are worn, any variable valve timing actuators or motors that are out of spec, and balance shaft chains. Not necessarily. Can anyone offer other things to look for?. chevy 350 96-2000 comp engine 96-2000. Set and Adjust Ignition Timing THE RIGHT WAY on GM Add 231 Horsepower to a Motorhome Engine With Bolt-On Parts!. 99,333 Miles, Late Model Cummins ISM Motorhome Salvage Cummins ISM 500 HP Engine for Sale ISM 500 HP Engine Mileage 99,333 Serial # 35062939 CPL # 2350 Family # 2CEXHO661MAS STOCK # D63758 ISM 500 HP Engine Mileage 99,333 Serial # 35062939 CPL # 2350 Family # 2CEXHO661MAS STOCK # D63758 Colaw RV Parts is. BBC 454 help needed!! 1 Answer. 1989 WIRING DIAGRAMS R-V, P TRUCK MODELS When reference is made in this manual to a brand name, number, or specific tool, an equivalent product may be used in place of the recommended item All information, illustrations, and specifications contained in this manual are based on the latest product. Timing is everything, and without a proper timing curve, every thing else goes out the window. Set and Adjust Ignition Timing THE RIGHT WAY on GM Add 231 Horsepower to a Motorhome Engine With Bolt-On Parts!. They are "One Man's" viewpoint & do not represent authorized data pertaining to the GMC Motorhome. Reasons for running hot may be thermostadt or bad water pump. My parts are guaranteed rebuildable. The first generation of Chevy big block engines was introduced in 1958, with the 2nd generation being introduced for production vehicles in beginning in 1965. I figure since it's only getting 10mpg, I might as well bump it on up to the days when 454's were getting 450 horse. Start Up Timing is locked in and the air-fuel mixture is slightly enriched by the Start Solenoid Valve. Fuel and air comes from the fuel system and carburetors. Find 454 Cam Kit on sale here with the largest variety of 454 Cam Kit anywhere online. We're all "engine folk" here so we're familiar with the. Century Performance Center is the site for racers, auto enthusiasts, street rodders, boat and marine enthusiasts, and engine builders. 0L gas engine available in the new 31/44- and 1-ton trucks is rated at 353 hp and 373 lb-ft of torque and uses variable-valve timing along with the new 6L90 six-speed automatic to improve. The specs on it put it at a wimpy 260 horse. 00 Chevy 383 / 350 HP 4 Bolt Performance TBI Balanced Crate Engine Truck Camaro $ 3,095. Performer-Plus camshafts should be matched with Performer manifolds for vehicles operating from off-idle t. some of it's features include forward facing couch, leveling system, side by side lp/ac fridge/freezer, 5500 watt generator, aluminum cased awning, satellite system, flat screen tv, drivers side door, 30 inch convection oven and power heated mirrors. I was incorrect about the statement that I said early in posts. The check engine light came on once motorhome based on the Chevy P30 chassis with a 454 engine that was distributor timing. 6 valves and roller rockers. Drawings by David Kimble. Workhorse 8. 17 reviews of ASAP Mobile RV Service "I was in at Eagle View RV resort and was having a problem with my new 5th wheel. We both have a little experience working on cars, but, we also have a lot to learn. The timing is not advancing. The module has to be bad. This page is dedicated to the owners of these vehicles equipped with GM's dual point fuel injection (model 220 TBI). Timing is everything, and without a proper timing curve, every thing else goes out the window. Anyways my orginal starter motor burnt up shorlty after i bought the truck and melted my power wire coming from the starter going to the battery. The GMC Motorhome was manufactured by the GMC Truck & Coach Division of General Motors for model years 1973-1978 in Pontiac, Michigan, USA — as the only complete motorhome built by a major auto/truck manufacturer. The only problem that I am aware of is that the power steering pump leaks a little. roller cam. Official Shop Manuals that the dealers and shop technicians use to diagnose, service and repair your Chevy Pick-Up Truck, Astro Van, Blazer, Camaro, Colorado, Corvette, Cruze, Equinox, Express Van, S10, Silverado, Suburban, Tahoe, or Volt vehicles. Re: RV with Chevy 454 engine problems: Steve: 9-15-09 : Tom you have the same as me chevy p-30. Anyway you cut it, those engines are not designed for motor homes. For most cars, a timing chain replacement costs between $413 and $1040, or you can order the parts themselves for $88 and $245. Will it make more horsepower than their recent Ford budget build? The dyno will reveal the answer. 3 PSD but its not in my budget. Powered by 8. Today I will be telling you how to fix many of the problems that you might be having with your RV water pump. Read reviews, browse our car. Another big blow for the 454 was the gas crisis of 1973 which pretty much sealed the fate for the motor during this period. I am considering some performance upgrades to my 2000 Winnebago Brave with the 7. Confirm that the base timing is correct with engine at full operating temp and the timing connector disconnected. There is a couple of good forums that would probably be willing to tell you if they see anything. Buy Chevy Big Block 396-402-427-454 Steel Timing Tab - Chrome: Sets & Kits - Amazon. I drive a 1992 p30 chassis motorhome with a 7. com offers a listing of Gates v-belt cross references including banded, Kevlar, cogged, metric v-belts, and more! Find cross reference charts online today. BBC 454 to 470 CID with AFR 265 or 290 Oval Port heads to max of 6200 rpm. I wrapped the exhaust with insulation ,and covered the starter with a reflective cover and still have the problem?. For most cars, a timing chain replacement costs between $413 and $1040, or you can order the parts themselves for $88 and $245. Set and Adjust Ignition Timing THE RIGHT WAY on GM Add 231 Horsepower to a Motorhome Engine With Bolt-On Parts!. I just used one because I didn’t need a BIG truck clogging up my driveway. Chevy 427 454 RV Stage 1 Cam kit lifters double timing Camaro Corvette Chevelle. However, manufacturers and racers favor roller tappet cams (when rules permit their use) because roller cam designs have distinct advantages over flat tappet designs:. 1988 454 with Quadrajet carb. Labor costs are estimated between $117 and $148 while parts are priced between $559 and $608. The casting numbers indicate 96+ 454 vortec 7400 L-29 Generation VI #10237297 When we pulled this engine from the torched motorhome, It had TBI on it. 6998 for lower pricing. Clymer service and repair manuals are written with model specific coverage for all your service, repair, and maintenance needs. This page is dedicated to the owners of these vehicles equipped with GM's dual point fuel injection (model 220 TBI). I just used one because I didn't need a BIG truck clogging up my driveway. No matter the ECU need you might have for your RV we will definitely deliver. Performer-Plus camshafts should be matched with Performer manifolds for vehicles operating from off-idle t. I've been a diesel guy for awhile and know nothing about big gassers. Shop for discount 454 Cam here. I had an '88 Itasca with a 454. Its design shared much with the L29 454, but with the addition of forged pistons and crankshaft, and coil near plug ignition. It says that a 1990 454 TBI has 230 hp 385 torque. Oh boy, I hope you marked the distributor before taking it out. Unfortunately the Chevy 454 was the right engine at the wrong time. Re: 1988 Chevy 454 backfires: larry: 3-3-09 : Timing set to low turn your distributor a little counter clockwise while engine is running you will hear the engine relaxe a little and idle up. The best part is, our Nissan Pathfinder Timing Set products start from as little as $69. x2 or whatever on the 'RV' type cam. Running fine for few weeks then started having problems. The timing should be 0° TDC (454 engines – 4° BTDC). The Toyota Mini Motorhome first hit American roads in the mid-1970’s, and was based on a version of the Toyota Hilux compact pickup truck. Wiring is the same. The specs on it put it at a wimpy 260 horse. Welcome to TBI CHIPS throttle body injection services. I was told with the HEI I may have to go to 8, but it doesn't run well there either. Your Class A motorhome is NOT built on a "P30 Chassis". I can turn a wrench pretty well myself but it's always a struggle to figure out what is really beneficial for the 454 in a Motorhome. These heads offer superior flow characteristics and are available with either a 320cc or 360cc intake runner. This is particularly important when attempting to crossbreed major components between different engine series, such as Mark IV, Gen V, and Gen VI engines. Cruzer's RV TechMag is the ultimate source for technical articles, travel destinations, road tests and reviews as well as the latest and greatest RV products and accessories and editorial commentary related to the RV lifestyle. 3- or 9- keyway timing chain sets have additional keyways cut into them to index the crank sprocket. So, exactly how much can you tow with a smaller motorhome? Only you can say, because only you know exactly how heavy you roll. There are many others that will do the same thing but the 1227747 is most well known and documented and will be the basis for this article. There is another plate located on the lower portion which I can read for the most part. Did you install a new distributor with new gear or atleast a new gear on your old distributor to mesh into the new gear on the camshaft?. Find 454 Kit on sale right here with the biggest selection of 454 Kit anywhere online. favorite this post Oct 11 454 big block Chevy motor and extras $700 (Owasso) pic hide this posting restore restore this posting. - Gen Iv V - 584-135. Diagnosing an engine miss on the 91 C3500 GMC with the 454 TBI 7. Under the hood will be the timing setting value on an information sticker specifc to your engine. Knock sensors which detect the knock, will pull timing from the ignition. Has anyone tried to set the base timing on an engine where it's impossible to see the timing pointer?Well evidently GM(or maybe Fleetwood,who made my Pace Arrow)had a better ideaadd a pointer 45* past the other pointer and connect the timing light to #8(next plug in the firing order)plug wire. The 454 HO big block is Chevy Performance's most economical alternative crate engine to rebuilding - see images, dyno specs, installation info and more. 1992 454 TBI Timing I also have the chevrolet chassis manual that came with it. I have replaced the fuel filter. Basic engine noise diagnosis for sounds like rod knocks,lifter ticks,rocker arm rattle,piston and timing chain slap using a stethescope. In stock trim, the low-compression and mild cam timing kept the 454 from achieving its true potential. The timing tab for Motorhome 454's is down below at about the 5 o'clock position as viewed from the front, if memory serves and I believe you use the number 8 cylinder to set it. Hi, I have a 1984 Airstream RV with a Chevy 454 engine, 119k miles. The only problem that I am aware of is that the power steering pump leaks a little. Start Up Timing is locked in and the air-fuel mixture is slightly enriched by the Start Solenoid Valve. If you have built your teenage dream car and put AFR oval ports on it than there is no doubt this is the cam for you. a vacuume gauge shows late ing timming. Winnebago is an American manufacturer of recreational vehicles (RV) and motor-homes. Lets say it is 10 degrees BTDC (Before Top Dead Centre). Chevy 427 454 RV Torque Cam kit lifters w/valve springs Camaro Corvette 204/208. what can i do to better my mileage? Let's do this cheapest to most expensive: What kind of gas do you use?. Connect the timing light power leads according to manufacturer’s instructions. 86937 *RPO stands for Regular Production Option. The New Generation Ford and GM boost weight ratings for freshly Engineered gasoline-powered motorhome chassis. How to pass the DMV emissions smog test, organized in ascending order of cost. Its two main roles are to create a spark strong enough to ignite the air/fuel mixture for combustion and to control the timing of the spark plugs by opening and closing the ignition coil ground circuit. 7L) engines. UPDATE! Ok, while doing some testing, the new waterpump that I installed 2 years ago failed and because it is behind every accessory bracket that has to come off to R & R the waterpump, I figured why not put a timing chain in since the engine has 165,000 miles on it. When it comes to your Nissan Pathfinder, you want parts and products from only trusted brands. ED ISKENDERIAN RACING CAMS DO IT RIGHTRACE WITH THE LEGEND New RA DTM Tool Room Part No's: See Page 40 NEW RED-Z ONE TM Roller Lifter Part No's: See Page 16 New Expanded Cam Profile Listings:. In recent years, manufacturers have been wise to limit themselves to diesel chassis for motorhome models of 35 feet and longer in order to provide at least some payload capacity Weight-carrying limitations have forced builders to limit lengths and features in order to minimize the. Recommend headers in the 1 ¾" size with 3" collector. In 1992, a balance shaft was incorporated in this engine, which necessitated a third timing chain setup to drive both the cam and the balance shaft. I have 2 connectors hooked up to the distributor. The timing tab for Motorhome 454's is down below at about the 5 o'clock position as viewed from the front, if memory serves and I believe you use the number 8 cylinder to set it. Lets say it is 10 degrees BTDC (Before Top Dead Centre). strictly highway i get at most 12 mpg. So what am I going to do for this project. 1L was introduced in 2001 and used in various heavy duty applications, including Chevrolet Silverado and GMC Sierra 2500/3500HD pickups, through the 2006 model year. 1992 454 TBI Timing I also have the chevrolet chassis manual that came with it. However, manufacturers and racers favor roller tappet cams (when rules permit their use) because roller cam designs have distinct advantages over flat tappet designs:. the place to discuss religion/politics or other contentious issues,not for the faint hearted. Depending on engine modifications and weather condititions, it may vary, but as long as you are in this range, your fine. The casting numbers indicate 96+ 454 vortec 7400 L-29 Generation VI #10237297 When we pulled this engine from the torched motorhome, It had TBI on it. You won't need a dial back timing light to use it (they're expensive for a really good one) and you won't have to start "guessing" once the timing mark on the balancer starts "crawling up behind the water pump", off the top of the range of stock timing marks. The GMC Motorhome was manufactured by the GMC Truck & Coach Division of General Motors for model years 1973–1978 in Pontiac, Michigan, USA — as the only complete motorhome built by a major auto/truck manufacturer. 4L 454 tbi in it. ok guys I've got a question about this RV cam deal. 2L Diesel Specs, History, & Info. An improperly tuned engine can produce more heat.