Small Block Gen I 262-400 '58-'86. How Much Horsepower Does a Chevrolet 454 Engine Generate? The original 1970 LS5 version of the big-block Chevrolet 454 engine produced 390 horsepower that drove the Chevrolet Corvette. I had an '88 Itasca with a 454. 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. Trust Gates power transmission solutions to provide the reliability, efficiency, and precise motor control your industrial drive applications demand, with leading solutions for your commercial HVAC cooling fans, pump drives, linear positioning applications, bucket. The following list will provide you the information on whether your car engine is an interference engine or a non-interference engine. big block dart sportsman block bored 4. There is a 60 sec delay on power enrichment which means its at 14. The 27 degree mark is at 1. In that time a lot has changed. 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. Knowing the history of the vehicle is important. Spoke with RV repair facility and they said they set timing without disconnecting the secret wire that is to be disconnected before setting timing. 454 chevy engine in 87 southwind motorhome what Home > Discussion Forum > Mechanic's Corner - Engines email John Testa reply to message post new message search forums. Been thinking about putting a diesel in my motorhome. I wrapped the exhaust with insulation ,and covered the starter with a reflective cover and still have the problem?. What is the timing for a 1983 Motorhome-454 cubic inch engine The motorhome is 31' in lenght Is the timing setting the same for all 454 engines made in 1983 If so then you know the answer?. Lets say it is 10 degrees BTDC (Before Top Dead Centre). setting timing marks on 97 Silverado w/5. We have grown to be one of the internet's largest entertainment sources. 1L / 496cid Timing Set Swap Information Please note: We do not sell timing gears or camshaft position sensors. I was told with the HEI I may have to go to 8, but it doesn't run well there either. 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. Remanufactured Engines Chevy Big Block. run good and i have tried all octanes and sometimes they feel the same. my question is are the camel humps too much head for the RV cam in a 283??. Producing 400 hp is not terribly difficult in a motor displacing 454 ci. This drawing is of the 1967 version of the 302 cid Chevrolet. Pete and others >> I appreciate this thread. I went out to check the timing on my 454 this afternoon, and the strobe light could not find the mark on the harmonic balancer even after I verified the strobe was connected to cylinder number one's 454 Chevy timing - Page 2 - Airstream Forums. We will show you that simply telling the alignment shop that it's a "P30 Chassis" will almost guarantee you an incorrect alignment. But make sure all the brake recalls have been done. php(143) : runtime-created function(1) : eval()'d code(156) : runtime-created. Chevrolet 307 V8 Engine. 454 chevy engine in 87 southwind motorhome what Home > Discussion Forum > Mechanic's Corner - Engines email John Testa reply to message post new message search forums. 09-09-05 11:24 PM - Post# 775227 In response to bobb I guess what I'm really talking about is relativity rather than absolutes. At low rpm’s it can advance timing to increase torque. In that time a lot has changed. 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. We have grown to be one of the internet's largest entertainment sources. 9 m) lengths, the design was noted for its front-wheel drive and its low profile, fully. Taking my 1985 7. You can simply reach over and retard the timing. The problem I have is that the picture in the manual showing the lower tab shows it on the LH side at 7 o'clock (and the verbiage references the LH side of damper) It then goes on to say use plugs 5 or 8 when using that tab. 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. Yard Care • Atlas Vehicle Lift • Metal Working Machines • Wood Working Tools • Snap On Tool Box • Misc. com/public/qlqub/q15. Diagnosing an engine miss on the 91 C3500 GMC with the 454 TBI 7. 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. Or say the opposite zero degrees. 4L/454 Chevy big block Gen VI Timing Cover Gaskets and get Free Shipping on Orders Over $99 at Summit Racing!. A lot can be learned by listening to your engine, so if your car starts to change its tune, you should take heed. I was told with the HEI I may have to go to 8, but it doesn't run well there either. I advanced the timing a bit on my '88 V30 crewcab 454. , one would probably expect that one would need more advance than the other in much the same way as a 400. Its design shared much with the L29 454, but with the addition of forged pistons and crankshaft, and coil near plug ignition. Stock 454 tbi everything I've read says 4 degrees timing btdc. the gauge should be still the same psi. With big block power, four-on-the-floor, all the right classic muscle car features, and an awesomely finished presen More Info ›. Yard Care • Atlas Vehicle Lift • Metal Working Machines • Wood Working Tools • Snap On Tool Box • Misc. How to Source Chevy Big-Block Gaskets Matching the correct engine gaskets for your particular big-block build is critical for proper fitment and function. I have noticed that the fuel pump doesn't run all of the time when my engine is running and I am suspecting that it is supposed to. 4L (454) Custom Tuning module. chevy forum at Car Dealer Forums; Hi, i have a 2000 gmc with a 454 with 60,000 miles on it. To do so we publish an ongoing series of “Tech Tips” designed to help you keep your Perkins, Deutz, Deere, or Continental engine up and running, your Rockford and Twin Disc ® PTO to function better, or your exhaust scrubber and purifier to clean more air. When HOT ROD Magazine friend, Curtis Mowery, brought home a free '86 GMC motorhome to use as a "donor car" for an upcoming project, we decided to treat it to some speed parts and see what kind of. If you happen to have your timing cover off, dot to dot is TDC for #6, TDC for #1 is when both dots are at 12 o'clock. big block dart sportsman block bored 4. EngineThe 1990 Chevy 454 SS featured a 454-cubic-inch engine. TH350/400 Shift Point Adjustment The 3 speed Turbohydramatic 350 and its big brother the TH400 were some of GM's most widely used automatic transmissions from the mid 60's through the early 80's. Re: 454 chevy engine in motorhome: jason: 6-28-12 : Ran great then one day stopped starting for no reason. I was incorrect about the statement that I said early in posts. GENERAL MOTORS TECHNICAL INFORMATION Engine Types | General Tips. 1 liter engine was great. What is the timing for a 1983 Motorhome-454 cubic inch engine The motorhome is 31' in lenght Is the timing setting the same for all 454 engines made in 1983 If so then you know the answer?. It is singular in designing elegant motorcars among the auto makers of the world. One connector has a white wire and a red wire and goes to the coil. 4L/454 Timing Chain and Gear Sets and get Free Shipping on Orders Over $99 at Summit Racing!. 5:1 is where id set it. Really useful little piece of equipment. 1991 Winnebago Warrior (23EC) 454 chevy / 400 trans Not sure which to post this in (and I did look heheh), hope not doing a major no-no here. the gauge should be still the same psi. The check engine light came on once motorhome based on the Chevy P30 chassis with a 454 engine that was distributor timing. 5liter by monty1022 (7/17/2006) I need a firing order diagram for a fuel injected 1988 Chevy S10 Blazer 2. Yard Care • Atlas Vehicle Lift • Metal Working Machines • Wood Working Tools • Snap On Tool Box • Misc. If you happen to have your timing cover off, dot to dot is TDC for #6, TDC for #1 is when both dots are at 12 o'clock. I was incorrect about the statement that I said early in posts. amc/eagle. More at Determining top dead center. If you're looking for a reasonably priced vehicle, odds are that Chevy will have something. Engine Will Run on unleaded fuel 91+ and has DOME PISTONS 10. The 1993 Chevy 454 SS pickup delivered 255 horsepower and 405 foot-pounds of torque. My parts are guaranteed rebuildable. Guided Navigation Display Options. 79 Chevy 396 402. it has 42k mile on it. No I don't mean harder plugs, competition coils, lumenition etc. Small Block and Big Block Chevrolet engines have become legendary since they were introduced over 50 years ago. ~Read me pleeeze~ For up-front payment total on a remanufactured long block exchange engine, add the 3 figures at the right end of the table rows above. Tomorrow I plan to remove the plugs and turn it by hand. and hope you will never need it. back to the tank or in the engine. Engine Will Run on unleaded fuel 91+ and has DOME PISTONS 10. I haven't run it yet. Lets say it is 10 degrees BTDC (Before Top Dead Centre). Dual Overhead 2. The TH350 was mainly factory installed with small blocks and the TH400 with big blocks and high performance and heavier duty vehicles. 4L (454) Custom Tuning module. I have built dozens in this form. 2000 Chevy 3/4HD. What Are the Specifications for a Chevy 454 Engine? 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. Browse your favorite brands affordable prices free shipping on many items. We are committed to keeping your GMC Motorhome on the road. Unfortunately the Chevy 454 was the right engine at the wrong time. There were six blocks, five cylinder-head variations, four camshafts, three timing chains, four flywheels, four torque converters, five different oil pans, and many different linkage brackets. This is intended for application with pre-emmission engines (generally pre-1975). GMC MOTORHOME NEWS Manuals / prices Dometic Refrigerator Installation and Owner's Manual BROCHURES 1976 and 1977 Brochures by Bdub 1973 GMC Motorhome Brochure 1973 Sales Brochure Barbie Brochure Models, Floorplans, and Decor Hess Toy Trucks -- GMC motorhome Arthur Owens GMC Motorhome Toy Collection GMC links Clip Art / DECALS / FLAGS. Crown Suspension C1500 1988-1998 Lowering Kit 5" 7" Drop Doetsch Shocks 2wd V6. The engine's intake system depends on being completely sealed and free from leaks. Chevy 454 vs Ford 460: Al Vanek: 3-24-04 : Hi I'm looking at buying a class C 1999 Dutchman motorhome with a Chevy 454 engine (and Chasis?) My last coach was a Ford 460. Is this correct? And what happens if timing is set to say 10 degrees btdc. Carburetors or EFI? Discussion has been circulating at that local hang-out between car enthusiasts over what type of fuel delivery is better. Air compressor unloader valve. We will show you that simply telling the alignment shop that it's a "P30 Chassis" will almost guarantee you an incorrect alignment. put new fuel filter inline on frame, then, a new module under the new distributor cap. We had a W22 on our 35' 2002 National RV Dolphin. I'm no expert tuner, but this doesn't seem right. Pete and others >> I appreciate this thread. Disclaimer for the author and for GMC Western States: The material presented below is based. The timing cover that comes with this engine will only accommodate a late model single roller timing chain. The check engine light came on once motorhome based on the Chevy P30 chassis with a 454 engine that was distributor timing. I've been a diesel guy for awhile and know nothing about big gassers. 9 m) lengths, the design was noted for its front-wheel drive and its low profile, fully. The cast covers look okay to me, but I really like the look of the older round edged ones, so that is why i want to use those. Engine Troubleshooting courtesy of Greg's Engine & Machine. Built to use but circimstances force sale. 4 million Cat parts. Would this motor be like a 200 horse peanut head 2 bolt motor ,or would it possibly be something worth getting?. replaced all the fuel injectors, plug, wires, cap and rotor. The belt must be replaced, but wait… If you replace the. The distributor may need adjusting to prevent crossfire. Chevy 454 Timing Instructions by Don Bowman Ignition timing is used to ignite the fuel in an internal combustion engine at a particular time in an effort to burn as much of the fuel as possible in the power stroke. I had been experiencing some engine sputtering and stalling when the engine was under load, noticed alot going up hills. Wide range of Ford 454 - Crate Engines - Complete Engines - Engines at CNC Motorsports for all your high performance auto needs. 454 engine vs. It is a winnebago chevy P30 L automatic motorhome contains thr relay a 40 amp fuse wiring harness, terminal and instructions. 5 + SEAL POWER pistons. this should take care of your problem make sure you mark where it was before you started just in case you need to put it back where it was. I went out to check the timing on my 454 this afternoon, and the strobe light could not find the mark on the harmonic balancer even after I verified the strobe was connected to cylinder number one's 454 Chevy timing - Page 2 - Airstream Forums. The code 42 gets set by unplugging the set timing connector to set the timing, and should be cleared after you set the timing. This belt is kept under tension by the belt tensioner. and hope you will never need it. Casting date on the right lower side near the freeze plug in front of the starter. Wiring is the same. Shop 454 Stage Master Engine on sale online!. Get the best deal for Complete Engines for Chevy 7. Inherited a problem, that I can't ID. I had a deal come up on a 20,000 mile spotless clean ,carburated 454 from a wrecked late 80's early 90's motorhome. lined it up manual to 0* tdc, droped the dist. 1991 Winnebago Warrior (23EC) 454 chevy / 400 trans Not sure which to post this in (and I did look heheh), hope not doing a major no-no here. 79 Chevy 396 402. Is this correct? And what happens if timing is set to say 10 degrees btdc. Say if I put L92 heads, a moderate cam/lifter kit to. The BoxWrench Engine Specs Database is a community resource for mechanics of all skill levels to access a reference library of Firing Orders, Distributor Rotation Directions and Block-Cylinder Numbering as well as Torque Specs, Timing Settings and Cylinder Head Tightening Sequences among other engine specs. Initial timing (aka base timing) is the amount of timing advance before the mechanical or vacuum advance is added in. The most important part of your restoration. I am having similar problems with my 89 Chevy 454. 94' P30 454, books say to Identify timing setting by referring to code plate on firewall, well there is no plate, have looked everywhere. The following list will provide you the information on whether your car engine is an interference engine or a non-interference engine. Depending on engine modifications and weather condititions, it may vary, but as long as you are in this range, your fine. Truck starts easily when cold. I actually went through several lists and made some corrections before making this list. Those '80's HEI's had a problem with that. I couldn't time my old '79 P30 motorhome either but just by chance one day I was looking around under the engine and found the lower timing tab. Would this motor be like a 200 horse peanut head 2 bolt motor ,or would it possibly be something worth getting?. Shop more than 1. The Chevrolet 454 engine was a part of the 2nd generation of Chevrolet big block engines. Free Shipping! These Chevrolet Performance 454ci/7. If you are building a mod motor, a good RV timing is around 145 degrees opening and 75 degrees closing. Remanufactured Engines Chevy Big Block. The parts required for the complete timing belt service will cost up to $150, but the labor is the majority of the job. This one is casting number 2264192, and was used on heavy duty / industrial 413's. Dual Overhead 2. Quality Remanufactured Motorhome Engines From Rebuilt. The problem I have is that the picture in the manual showing the lower tab shows it on the LH side at 7 o'clock (and the verbiage references the LH side of damper) It then goes on to say use plugs 5 or 8 when using that tab. Big Torque on a Budget. Part 1 of 13 - How to Diagnose and replace a blown head gasket Diagnose and replace a blown head gasket - Part 2 of 13. It's a gen 5 454, I believe a 1993, in a 1971 chevy K20. In that case it had been modified for performance and the headers created so much heat that they caused the problem. I actually went through several lists and made some corrections before making this list. You Have Selected. The Chevrolet 454 engine was a part of the 2nd generation of Chevrolet big block engines. Official Shop Manuals that the dealers and shop technicians use to diagnose, service and repair Buick, Cadillac, Chevrolet, GMC Truck, Hummer, Oldsmobile, Pontiac and Saturn vehicles. Buy Exhaust Manifold For 7. Industrial Drives - Stationary. As you ascend the knock alert will indicate that the engine is knocking. Edelbrock Performer-Plus Camshaft # 2162 is designed for 396-427-454 Chevy V8 engines and produces optimum torque from the low-end to the mid-range. If I set it around 10-12 it seems to run ok. Recommended 454 I have made some changes to this page after learning a lot the hard way of course with my 1991 454SS project truck. 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. You MUST unplug the connector to get the timing set correctly. Correct ignition timing will cause the engine to have maximum cylinder pressure at about 12 degrees after top dead center; the optimum ignition spark timing will vary by engine speed, load and air/fuel mixture. The EDIS modules have a pin, that when pulsed at the right frequency, will vary the ignition timing from 10 ATDC, to 56 BTDC, based on the frequency produced by the Megasquirt ECU. Guided Navigation Display Options. This belt is kept under tension by the belt tensioner. The 454 test motor was equipped with an HEI distributor and 8-mm plug wires from Speed Master, though a stock HEI will work just as well. ~Read me pleeeze~ For up-front payment total on a remanufactured long block exchange engine, add the 3 figures at the right end of the table rows above. Join millions of people using Oodle to find unique used cars for sale, certified pre-owned car listings, and new car classifieds. I'm no mechanic but I'd like to see if I can fix the problem without having to Chevy 454 Running higher temps (vehicle, gasket, valve, exhaust) - Chevrolet, Cadillac, Buick, and GMC -Car forums - City-Data Forum. My Motorhome still has the tune-up specs. What happens if the MAP sensor is bad on my 1991 2500 454 TBI Suburban? What effects will be noticed. If the timing chain jumped prior to replacing the distributor, the #1 cylinder and distibutor could be timed correctly, but the cam is not. 6 valves and roller rockers. it has 42k mile on it. my question is are the camel humps too much head for the RV cam in a 283??. He told me that he had the problem with a car powered by 454 several years ago. Featuring 3 yr. RV with Chevy 454 engine problems by Mark: I have a 1986 El Dorado motor home with a chevy 454. Diagnosing an engine miss on the 91 C3500 GMC with the 454 TBI 7. Do the rear main seal, timing set, and front seal and put her back together. Is this correct? And what happens if timing is set to say 10 degrees btdc. It is singular in designing elegant motorcars among the auto makers of the world. Over the years emission controls have become more and more complex, and the ubiquitous (and infamous) check engine light coming on has become one of the most common vehicular problems today. The Chevrolet 454 engine was a part of the 2nd generation of Chevrolet big block engines. im told to replace the cylinoid beside the carb, and the sensor beside the harmonic balancer. Chevy For Sale. 86937 *RPO stands for Regular Production Option. Casting : Year: CID: Main Caps: Comments: 340220: 1972-76: 427: 4-bolt: tall truck: 345014: 1974-86. 1973 chevy gmc g van wiring diagram original. 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. at the distribator and plug it. That timing tab is for the next firing cylinder which is #8,connect your light normally. 5 diesels! Call 1. Remanufactured Engines Chevy Big Block. Pete and others >> I appreciate this thread. RV with Chevy 454 engine problems by Mark: I have a 1986 El Dorado motor home with a chevy 454. 4L/454 Chevy big block Gen VI Timing Cover Gaskets and get Free Shipping on Orders Over $99 at Summit Racing!. Find great deals on eBay for chevy 454 rv cam. Haynes Repair Manuals & Chilton Repair Manuals for Auto, Truck, Van, SUV & Hybrid Haynes Repair Manuals are available in five different types. Re: 454 chevy engine in motorhome: jason: 6-28-12 : Ran great then one day stopped starting for no reason. run the truck with a fuel pressure gauge on it. 1996 chevy 454 engine diagram moreover chevy 454 engine parts with 1974 chevy 454 engine diagram and 454 big block engines parts moreover 1973 chevy 454 engine diagram plus chevy 454 engine oiling diagram with 454 engine firing order diagram likewise 1979 454 chevy engine diagram likewise 1988 chevy 454 engine diagram and then chevy 454 rv engine diagram and chevy 454 motorhome engine diagram. Nowadays were pleased to announce that we have found an awfully interesting topic to be pointed out, namely 1992 fleetwood motorhome wiring. There is a 60 sec delay on power enrichment which means its at 14. 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. Ignition Timing (Total Timing Method) This issue's subject is about setting ignition timing using the total timing method. at idle engine seems like a vacuume leak , but raising the rpm the engine smooths out. in with the roter pointing towards the first cylinder, put the cap back with the. The previous owner has not used it for about a year, he cranked it up ever so often but has not ran it down the road. GENERAL MOTORS TECHNICAL INFORMATION Engine Types | General Tips. If you retard the timing - the idle drops. Set the engine to TDC. i need to fix pump wiring as having two switches in the coach i can't turn it off. basic idle timing for a mild 454? its got small oval heads with stock internals, an rv cam, and basically a stock intake manifold, thru transom headers etc. But make sure all the brake recalls have been done. 4L/454 Chevy big block Gen VI Timing Cover Gaskets and get Free Shipping on Orders Over $99 at Summit Racing!. I just used one because I didn’t need a BIG truck clogging up my driveway. Spoke with RV repair facility and they said they set timing without disconnecting the secret wire that is to be disconnected before setting timing. Generally steep approaches and long distances are not a problem which does allow access to remote parks with large sites. 4L 454 Cu In Big Block V8 was the primary Big Block Inboard Marine Engine offered by Mercruiser. vee notches with even numbers stamped every 2 degrees what drive do you have? it should be a alpha one painted white with sea ray decals insted of mercuriser. 1992 Fleetwood Motorhome Wiring (Aug 12, 2019) - Thank You for visiting our site. We recommend a high rise dual plane with the. I've been a diesel guy for awhile and know nothing about big gassers. I live in western Canada, and have since made several trips into the rockies. CAUTION: You must recheck your piston to valve clearance after advancing or retarding you camshaft timing. Engines with timing pointer on the top,Upper right side of engine looking from the front. This drawing is of the 1967 version of the 302 cid Chevrolet. The date code on the back of the block is( B 23 6 ) The confusion continues with 4 bolt mains, composite 6 bolt timing cover, and a FLAT tappet cam. Relocated original type cruise control actuator. I'd appreciate your opinions on which of these power plants is best and if there are any "gotchas" I should be aware of. Generally steep approaches and long distances are not a problem which does allow access to remote parks with large sites. Large Motorhome for Full-timing - Mobility. my question is are the camel humps too much head for the RV cam in a 283??. 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. When I bought it the rv had not been started for 2 years there was only 30k miles on it. vehicle identification vin decoding amc/eagle 1974-79 (13 digit number) a 9 s 0 5 5 a 100001 1st - manufacturer 2nd - year 4 - 1974 5 - 1975 6 - 1976 7 - 1977 8 - 1978 9 - 1979 3rd - transmission 4th - car line 8th thru 13th - seq number 7th - engine 6th - car series 5th - body type cont. Your Class A motorhome is NOT built on a "P30 Chassis". The people at COMP Cams®, along with a lot of top engine builders, have spent many years improving these and other Chevrolet powerplants. Wiring is the same. Its design shared much with the L29 454, but with the addition of forged pistons and crankshaft, and coil near plug ignition. 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. big block Chevy casting bock. These heads offer superior flow characteristics and are available with either a 320cc or 360cc intake runner. Shop more than 1. All Chevy SS 454 pickups rolled off the assembly lines in Fort Wayne, Indiana. Get a timing light out and point it at the injectors. Unfortunately, the thread got lost in cyberspace. 4L (454) Custom Tuning module. This procedure works better with two people to set the distributor. I advanced the timing a bit on my '88 V30 crewcab 454. I live in western Canada, and have since made several trips into the rockies. Fords V10 6. Our remanufactured 1974, 1980 GMC P35/P3500 Van engine was built to last not just to replace your original motor. The belt must be replaced, but wait… If you replace the. Don't know about HD/towing/emissions timing curves but the Chevrolet recommended timing curve for standard and performance big block engines is 36° total advance (crankshaft) all in by 3,000RPMs (crankshaft). TH350/400 Shift Point Adjustment The 3 speed Turbohydramatic 350 and its big brother the TH400 were some of GM's most widely used automatic transmissions from the mid 60's through the early 80's. This was a Cadillac of RVs in its day. The 454 HO big block is Chevy Performance's most economical alternative crate engine to rebuilding - see images, dyno specs, installation info and more. Manufactured in 23 and 26 ft (7. The engine's intake system depends on being completely sealed and free from leaks. I'm no expert tuner, but this doesn't seem right. Looking for firing order of 1994 454 in 3500 crew cab? by Bob (3/25/2007) how do you set the timing on a 1990 jeep wrangler yj 2. Even on upgraded Mercruiser 454 MPI our fuel programmer adds dramatic horsepower to your daily- or race cruising. Guided Navigation Display Options. When your belt displays any of the following: -squeals when accelerating. Scroll down to begin My RV Selector. Example of an ignition timing failure would be in the case where an engine's ignition timing is required to be set at 10 degrees Before Top Dead Center (BTDC) and instead is set to 15 degrees BTDC. We have grown to be one of the internet's largest entertainment sources. I know that Chevy Casting Numbers are on several sites on the World Wide Web but I thought it would be a good idea to list them here too. In that case it had been modified for performance and the headers created so much heat that they caused the problem. The timing cover that comes with this engine will only accommodate a late model single roller timing chain. Chevrolet 305 V8 Engine. I've had a few guys tell me there selling a complete 454 from a truck from the early 70's to late 80's for a pretty good price. Is this correct? And what happens if timing is set to say 10 degrees btdc. Quality Remanufactured Motorhome Engines From Rebuilt. Which one do I refer to when I set the timing? I don't know why they would put one down so low where it's hard to see and shine a timing light on. Over 6,000 Automotive Torque Specs. Join millions of people using Oodle to find unique used motorhomes, RVs, campers and travel trailers for sale, certified pre-owned motorhome listings, and new motor home and travel trailer classifieds. If you consider a 350 and 454 with all things being equal with respect to the usage application, type of vehicle, state of tune, etc. Who wants to break camp just to run to the store, then have to drive back to camp, and hook up. The local shop said they replaced it, but it doesn't look new. Featuring 3 yr. His hands were always dirty, but the MAP sensor looks old. The 454 test motor was equipped with an HEI distributor and 8-mm plug wires from Speed Master, though a stock HEI will work just as well. Chevrolet 307 V8 Engine. run the truck with a fuel pressure gauge on it. If you are building a mod motor, a good RV timing is around 145 degrees opening and 75 degrees closing. Anyway, here's the timing set procedure from our service information. Here are some drive train specs for 1973 - 1987 Chevy trucks. what can i do to better my mileage? Let's do this cheapest to most expensive: What kind of gas do you use?. also you can read more about this with photos on page 15 of motorhome-marketplace February 1999. Best Answer: Hi, I have a 454, Carb, in a 1988 32' a motorhomethe timing on it should be 8 to 16 BTDC. GENERAL MOTORS TECHNICAL INFORMATION Engine Types | General Tips. We spend a Whole Lot of Time crawling in under around and through that 454 mostly due to heat related issues. I'd appreciate your opinions on which of these power plants is best and if there are any "gotchas" I should be aware of. 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. big block dart sportsman block bored 4. Find amazing local prices on used campervans & motorhomes for sale in Darlington, County Durham Shop hassle-free with Gumtree, your local buying & selling community. Thank you for the comments George. Just in 1969, the big block V8s had around sixty variations. The engine's intake system depends on being completely sealed and free from leaks. Re: RV with Chevy 454 engine problems: James Convery: 8-4-14 : I have a 1983 Monaco rv with a 454 motor. I couldn't time my old '79 P30 motorhome either but just by chance one day I was looking around under the engine and found the lower timing tab. I just used one because I didn’t need a BIG truck clogging up my driveway. 87 Chevy 454 TBI In need of desperate help The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board Check base timing - should be 0 deg with EST connector. 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. The EDIS modules have a pin, that when pulsed at the right frequency, will vary the ignition timing from 10 ATDC, to 56 BTDC, based on the frequency produced by the Megasquirt ECU. This motorhome is a virtual "home away from home" on wheels that is fully loaded and equipped for short trips, lengthy vacations or even full-timing. Could a wet system be used @ 50/75 hp shot be used with out driving over my crank. This backfire will get much worst at the slightest increase in rpm and will it will do it in neutral.