Ford 400 oiling problems. The 335 series engine does certainly have oiling issues.
Ford 400 oiling problems. #5 · Jan 17, 2006.
Ford 400 oiling problems I can fix it myself no problem but I'm hearing this is a very common issue on this motor and I'm curious I’m working on building a Ford 400 and was curious why and how you modify the oil passages between the main and cam bearings. Contributor. 6/400, 351 Cleveland - 351m vs 400 - Is the 400 any better than the 351m? Does it share all the same problems? Poor oiling, cracking blocks, crappy crank as in the metal not being hard enough. 66:1 Modular V10 (6. 395 HP at 5750 RPM and 400 NM at 4500 RPM – (10-speed automatic transmission) 2021 onwards Ford F150 (14th generation) – 400 HP 1948 - 1956 F1, F100 & Larger F-Series Trucks - 292 Oil Problem - Have 59 with 292. Make enough holes along the hose and the water pressure drops. Low-idle oil pressure is a common concern with the FE, although it rarely causes any problem with the engine. wpod. I apologize in advance for the long post. I ordered new hydraulic lifters because 2 were collapsed. MeanGene427 400 M A 400 M is a 400CID motor the cleavland heads are the same as the Modified heads unless you come across a set of 4BBl heads. In this article, Ford FE Engine Oiling System: The Complete Guide- Build Max Performance for the 332, 352, 361, 390, 406, 410, 427, and 428 Engines and How to Stroke Your Engine. Another is that I do not think the C's really have an oiling problem. I'd think if it was an oiling problem, it wouldn't have wiped out the exact same 2 lobes & lifters twice. Skip to Part Two - The FE's every day use the stock oiling system works fine. torque is 213 Nm (157 lb-ft) at 1200 rpm. im having the same problem. You will not have any oiling problems with those numbers. I am only getting oil through 2 rocker arms when priming engine and oil pressure is at 60psi. Thicker oil was the Oiling problem help please! too if you happen to get a block that has oversize lifter bores and that's something I had recently with a small block Ford. before and after the installation the oil pressure was fine Ford’s engineers focused on cost savings with the 351C engine. 040" quench@ zero deck, 11. bax. Joined Aug 22, 2005 Messages 14,498. 400s are notorious for low pressure because of the oiling system design. As well as the reasoning behind the external oil feed line from the rear of the block to the front nest to the fuel pump. but that 1973 - 1979 F-100 & Larger F-Series Trucks - Freshly rebuilt 400 has low oil pressure - Hello all, I?ve recently rebuilt my ford 400 out of my 78 f250 and I had an old boy who?s rebuilt many engines in his day help me. After doing some reading I?m starting to have some doubt about the oil system. By saying "never proven," I specifically mean that I gave Ken some detailed instructions that would allow him diagnose/ascertain where his oiling problems were originating (we have all seen the The lubrication system problems and their solutions should have been clearly stated and well publicized but Ford stopped publishing the OHO Parts Newsletter in early 1973, just as the solution was being discovered. Reactions: ka9mnx and wpod. I have a similar problem with my 460, it has a truck rear sump pan and oil pressure drops on a run as well. The Ford 400-2V trucks performed at least as well as the Chevrolet 400-4bbl trucks and both were substantially quicker than the 351/350 powered trucks. (Yep, the rods, heads, intake, etc are all the same for those two engines. 444 for boost 2 years ago · Timothy Meyer. I've been researching and I've been finding nothing but bad stuff about the 351m 335 Series- 5. So maybe the 400 Ok, I've done a ton of research on this, but have found people arguing both ways. my 400 has 40+ PSI at idle hot with a stock pump. One area that they determined they could cut costs was in the oiling system. The Y block really didn't have the oiling problem , only the oil that was used back then plus people not i once owned a 60 ford truck mechanic at dads carlot ran copper line from side of block drill holes into valve covers he said would work engine didnt last long i ended up installing 66 If I go with the 400, Ok, that's good to know . 8/351W) - Vaccuum / Oiling problems - Hello All, I am going to make a logn story short, and then ask for any diagnosis/help. FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) - 390 with oiling problem - i got this truck back in june 2009, and ever since i changed the oil, it has never had the oil pressure it had when i got it. I know there are bits and pieces of this in many threads in this forum, but I've not found a comprehensive discussion regarding what is a The OP said he heard that we Fords have lower oil pressure than his GM history. While the 351W had 3 main oil galleries, the 351C was reduced down to 2. when the engines cold i have 70psi oil pressure. - I've been reading another thread and it brought up some points that I've got a couple questions about. Needless to say, it spends most of its life parked under a tree. Skip to content. View Next FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) - 390 Push Rod Question. 351 W Oiling Problems. I did not know about the oil mods at the time of the build. Then you always hear the complaint that it's hard to find parts for the 400, that's bull as well. While rebuilding I checked my bearing clearence with plastiguage. what causes this and what can I do to correct the The problem is the mains get starved, not the top end. We ran the engine about a minute last Sat. Dont throw a rod in that 400 or your stuck with that 300/6 forever. Since going to rollers to solve my cam bearing problems, my bottom end bearing problems have been zero. He talks about routing a supply line from the front oil psi port to the top rear of 335 Series- 5. Ken's initial post reads as though the High Flow Dynamics Stage 2 oil pump is pumping the pan dry, but this was never analytically proven, nor do I believe it to be the culprit. 1973 - 1979 F-100 & Larger F-Series Trucks - TMeyer Ford 400 oiling mod questions - Hello, I just dropped off my Ford 400 engine block at the machine shop and requested to have him drill out the hole to 5/16 and install 1/4 pipe plug as Tmeyers website suggests. Around 1200 zink 1100 phosphorous according to there spec sheet. 8l) - V10 Cam Problems - I have heard that the V10 is not going to be built due to all the problems it has had with the cam. Profile Page. greensheads, May 13, 2011. 0" on the 351M/400 but did not decrease the size of the oil galleries leading up into the top of the 335 Series- 5. 1/370, 7. Ford 390 Oiling problem Ok Been least 15 Year's Since I even seen a 390 . Being new at this, I thought you were supposed to tear off a piece and place a piece of plastiguage inside the bearing with All 351M/400's have crankshaft oiling problems because Ford enlarged the main journals from 2. LivermoreDave wrote:I'm not educated with the aftermarket's BBF (385 series) architecture. i installed a high volume oil pump from ford racing and a windage tray from milodon. This model was manufactured from 1975 to 1984. Part Three makes some recommendations for modifications to the oiling system. I have a mild rebuild and i should be making around 380ft/lbs of torque around 1996 Ford Bronco Eddie Bauer "Tony the Tiger"//1978 Ford Bronco Custom//1979 Ford Bronco woods beater//1976-78-89 Ford pickup//1978 Ford Granada//1971 Ford Maverick Grabber//1968 Chevrolet It would be nice if the oil problem is something simple. All comments are appreciated. Part Two explores the stock FE oiling system where we find out why Ford created the Sideoiler. - Ok guys, Im getting ready to put my 390 motor back together. ) Another issue with these engines is the oiling system, but Tim has a mod for I picked up a 71 Ford 400 engine for a good price, it is a true low mile survivor. I used the Morel lifters and I still had to run a . i have tried different filter brands to different grade oil and all with no luck. I created this video to educate and increase the under. HOME; SHOP 395 @ 5,750 400 @ 4,500; Ford Mustang GT (2011 to 2012) Six-speed automatic / Six-speed manual; Rear-wheel-drive; 412 @ 6,500 390 Got the problem solved today, and thought I would post the details. 0" on the 351M/400 but did not decrease the size of the oil galleries leading up into the top of the engine to properly balance the oil pressure -- This myth is one that most everyone, even people who like the "M" engines, hold as FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) - Oil System Modifications FE Top Oilers - DF and others, I have researched this issue and edited what hopefully is a simplified text. Like nothing is in the There is a plethora of misinformation regarding Oldsmobile oiling and oil restrictors on the internet. In fact they only make a little less than 400 hp with the 350 cfm carbs so we will probably run them a lot more laps now but we didn't know at first. 75" on the 351C to 3. 1978 Ford Bronco, warmed over 351M, C6, NP205, 6" lift, 35x15 TSL's, D44 front, I was hoping it wasn't a problem, Hay NET,run straight lucus oil. Things like provisions for dry-sump oiling and billet steel caps are not needed in the applications the SHP block was designed for. They all have racing oil pans and turn them to 7200 and dont replace bearings all year. you can almost fit your fist in the intake side. than I start hearing a slight knock from the engine. Come join the discussion about popular models such as the Mustang, Galaxie, Falcon, Fairlane, Torino, Shelby and many more! Show Less . Here is a picture of the dizzy gear thrust boss in the block: :bs: that is completely false. 1973 - 1979 F-100 & Larger F-Series Trucks. (with original oils) It IS a problem if the oil pressure drops too low. It has a HV oil pump and right after the rebuild there was 65-70 psi, now when hot there is less then 5 at idle and 30 when loading the engine. I am wondering what others, especially Tim Meyer thinks about it. The design of the oiling system sent oil first to the cam bearings instead of the main bearings. Excessive main bearing wear can cause low oil pressure. It works fine in all the 351C engines that were assembled by Ford and installed in their Mustangs, Cougars, Fix the leaks and your Cleveland will run easily to 7 grand with 400 horses and be happier than a clam. I have and it helps. Are there any other oil mods you suggest for a high performance ford 400? 351M/400 Stroker kits-10. Mostly the Police cars that would sit and idle like they do and the engine oil light would start coming on after it sat idling for a while . ford interchange book about oiling problems with C,M @ the #4and#5 main and rod bearings. From the second post above I had surmised that the #1, #3, and #5 cam bearing bores were OK, but that #4 was undersized or egg shaped somehow, and #2 was at least slightly out of alignment. 20-24# on the road. Just run a line from there to the fitting at the rear of the intake and oil the rear A forum community dedicated to Ford performance owners and enthusiasts. CAN SHUT OFF MOTOR, AND LET IT SIT FOR 20 SECONDS AND START BACK AND WILL HAVE OIL PRESSURE 1973 - 1979 F-100 & Larger F-Series Trucks - 351/400 clevland/mod performance. 0/429, 7. The ONLY problem I found when I rebuilt the engine for my Bronco was the #3 piston had a shattered 3rd land. I put new cam, cam I think that there is a bonus in using roller cam bearings, too. 5 Hp (44. 1972ho wrote: ↑ Sat Nov 28, 2020 10:25 pm Speaking of Dart there are lost of blemish blocks on eBay that either dart are someone else is selling for half the price of of a new block,so dart block aren’t perfect either they don’t say what the problems are but they do have there problems with there stuff also. In deference to an above post, 50psi at idle is way, way, WAY too much pressure. when it starts up and Their fix is usually to drill oversize and put in a bigger pin though the gear. If I remember right the only problem is too much oil to But regardless, that top end oiling problem did and still does exist on some Ford Y engines. ) Specifically where is the restriction for the Due to the large variation in tolerances in these engines, many but not all of these engines suffered from these oiling system problems. Joined: Dec 15, 2010 Posts: 2,307. thanks:-X22 I worked for Ford as a mechanic back in 1973 -1979 and we had many 351m/400 in for the same problem . Questions I hope you can answer are: A. Common Ford F150 5. In the past there have been some doubts of the oiling system of the 429/460. The problem with this approach is oil starvation to main and rod bearing journals at high RPM. 6 is a 400 cu not 351. wich one would be more effecient in the long run a built up 400 or a 460? its goin in a 78 3/4 ton 4wd so i need a long torqe range. a few months ago, i installed a edelbrock intake and carb on my motor. I do have a couple of questions about it just to be 100% Any of the other problems you mentioned can be attributed to the oiling problem and they disappear when the restrictor is installed. The FE has no more oiling problems than any other American V-8. a 351m/400 weighs 575lbs and the 429/460 weighs 720 lbs. We just got this truck and don't plan on tearing it down immediately. All 400's that came out of late 70's and later vans and pickups had this problem. If you are turning it to high RPM, you will need to consult Tim Meyer or someone The other issue is excess clearance around the lifters causes the oil to bleed out and can lead to cavitation. The occasional core engine does still show up here with those overhead oiling lines on it so that’s always a reminder that top end oiling issues are not only something that cropped up back in the day but is still with us today on the Ford Y family of engines. 6/400, 351 Cleveland - chronic oiling problems with 351 M? - Hi, Currently I am looking at a 1980 F-150 that has a 351 M in it. 335 Series- 5. So when I pull the distributor I'll look for that plug. 8/351M, 6. The deck height is taller on the 400m so the intake will not fit. 6/400, 351 Cleveland - Oiling System Mods - Guys - I'm hoping the following will be the stimulus to a discussion regarding the oiling systems in our engines. probably be looking into a different settup alltogether. It sounds valid. I don't 335 Series- 5. once it The top was a oiling problem in the original design. It has a HV oil pump and right after the rebuild there was 65-70 psi, now when hot there is less then The crankshaft is VERY heavy and the oiling system is not designed for high RPM operation. Tried mechanical and factory pressure senders. One (which I can no longer find) went so far as to drill additional holes and add tubing to the rear of the block for extra oil for the main bearings? Some suggest a high psi 335 Series- 5. When i started to check my push rods for wear and length, I noticed that Ford 351 Cleveland Engine: The 335-series oiling system is different from the 289/302/351W small-block in that there’s one less oil galley, resulting in two galleys along the lifter bores. My '79 F150 4x4 has a 400 V8, nothing special, stock type rebuild with around 70k. I won?t be racing or street racing. I did hear one guy use it on his 351M but I dunno the differences in the 351M and 400M and 351 Cleveland. The issue is two things really 1 - it is NOT a "priority main" system 2 - the design of the system relied on tolerances and, just as importantly, quality control that just It has little to no oil pressure. I'm a big ford man and I have had a lot of the Ms, and they are all the same, rod knocking, gas pigs, that make no power. 958K posts 77K members Since 2001 A forum community dedicated to Ford performance owners and enthusiasts. Cam is from 1200 to 5500 rpm. 460 OILING PROBLEMS. Much more than that, Small Block V8 (221, 260, 289, 5. 3t w/ HE351VE turbo #5 · Jan 17, 2006. Once you have your true pressure, you can start diagnosing your problem. The owner says that the engine has poor oil pressure and doesnt give a reason why. Other I did the oiling (Image/Jim Smart) In Part One of our deep-dive into Ford’s 351 Cleveland and its 351M and 400 cousins, we explored the origins of the 335-Series engine family and separated the truths from the myths. Good evening gentlemen, i've had my 400 as long as i remember and recently got a hold of cleveland 4v iron heads, but i have only access to 91 pump gas, need help with this combo . " My 400 runs 50-60# at a idle cold or hot. - Bought an 83 bronco with a rebuilt 400m. 1978 Ford Thunderbird 6. I have a 302 cid, was suppose to be an 80's model motor and running. The Ford 4600 powertrain system components: Ford vertical three-cylinder water cooled diesel engine, and 8-speed Dual Range transmission. Details As many folks know 351M/400M had oiling problems right from the beginning so if these kit could work it would help out alot on the problem it's supposed to fix it or at least make it better. 2" & 9. Have only 1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks 292 Oil I am not really familiar with the 292 but I understand there is an oiling problem. 6/400, 351 Cleveland - 351M Oiling Problem - ive seen all the messages in this forum talking about 351m's and their oiling problem. Have problems with your Ford 5. FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) - rebuild or go 400? - the 390 i've got now is smokin' a hella lot, burnin' oil like there's no tomorrownot 100% sure what's wrong yet, but am pretty sure i'm gonna have to either rebuild it or go with a 400, which i don't want to do. There is a 1/4" pipe fitting above the oil filter. Just curious, 6. He is asking $1200 335 Series- 5. (Mind you he mostly rebuilt detroit 2 strokes but that?s beside the point). The problem is the mains get starved, not the top end. I am looking at a 2000 Excursion with 57000 miles on it and want to make the right purchase. Melling offers a variety of pumps for the FE, including standard, When Ford was developing its 335 Cleveland engine family, the objective was to produce a large engine family with displacements ranging from 335 to beyond 400 ci as a companion to the larger 385-series 429/460-ci big-block engines. The 351M If it has problems due to that, I'd expect valve and other top-end problems, not bottom end/oiling issues. 0/302, 5. Ford entered an era (1973 - 1982) when it was officially out of racing and out of the performance parts business. I cleaned most of the engine parts. New to this motor and carb all together. Im thinking a good oil pump In my opinion this sounds like an oiling problem. The water pressure in a hose remains high until it leaves the hose. Stay away from flickering pressure, problems, put, siezed, size, truck, trucks. Ive also never heard of anyone breaking a 400 crank, almost all of the problems I have seen were due to oiling problems. A 73 thru 76 2 bolt passenger car engine is the best find and is the premium piece for a maximum effort buildup,the earlier 4 bolt blocks arent that bad,and will work fine up the rockers should be checked as they tend to have the problem first as the lifters and bearings usually get at least some oil, but don,t run it until youve verified thats the problem or youve located the problem. Completely stock engine with 40k original miles. Today I'm going down the road and my oil preasure drops down to nothing than comes up just to the line right before the N in normal. Come join the discussion about popular models such as the Mustang, Galaxie, Falcon, Fairlane, I seem to remember that ultra low oil pressure is a common problem for the '73-79 F-150's with the 351M/400M engines. Also I haven't had a single oiling problem with my 400 You don't want to rev them too high though because they have a longer stroke than a 460, it's good for low end toque though. For those of you who think the system needs to be modified for better flow consider this, World Products has introduced a new SB Chevy block called the Motown II with a oiling system change that is more than just a That was really the easy part. - Just bought a 1977 F150 w/351M. I have been trying to pinpoint an oil leak issueand am out of ideas. You have 16 new holes in your oiling system for what I think you said was a stock oil pump. The priority main oiling system, siamesed cylinder bores, and 4-bolt mains were essential to making a true high-performance block. The last time I had a block poked out for rollers, the ticket was $400. 5/460) - 460 oil system mods - I have read a few articles about the oil system woes of the 460. A simple yet effective approach to provide additional oil to the rear of the Ford OEM 385 series engine is to add an oil line from the front driver's side oil pressure orifice to the top rear oil pressure orifice. That's how Ford solved the problem on the Boss 302s and Boss 429s that they used in the 60s for circle track long hauls. The Ford 4600 is a 2WD (4x2) utility tractor. Back to Subforum. I have tried higher and lower oil levels, lower seems better. In this case, Do I have an oil Ford Muscle Cars Tech Forum. any decent 335 Series- 5. I am also noticing that the V8's have a higher We have just put together an A460 block with Crower lifters part# 66379H-16. 6/400, 351 Cleveland - oil system modification - could someone clue me in on the details about adding the external oil line on a 351m. 6/400, 351 Cleveland - 351M oiling system mod. if your serious about this, you should check out FTE's 335 series forum and pjb's 351m/400 forum as well. Full Forum I JUST BUILT 460 BORED 60 OVER AND COMP. 6/400, 351 Cleveland - 400 Main Bearings Problem - Ok, so here is my issue. And, all it takes to make a 351M into a 400 is a crank from a 400 and the right pistons. 351C/W Stroker kits-9. Ran the block numbers C8OE at the local parts store, found out this block was Another option is the aussie 2v heads since they are also a closed chamber factory 2v head that will bolt in place of hte factory heads for the 400, but they have the problem of a 59cc (approximatly) chamber which tends to give a lot higher comp ratio than is desirable. Joined Jul 12, 2012 These engine where known for oiling problems particularly in the cam/lifter area. The 351M and 400 also have larger mains than the 351C. We did everything we could think of , even a higher volume oil pump and sill had problems . 5" blocks1 Topic · 3 PostsLast post: Details · 2 years ago · Timothy Meyer. Identification of 351m and 400m have low oil pressure because there shit, they always have been!!!!! That's why they throw the rods out of the bottom of the pan. 075 restrictor to feed the Similar Threads - Ford Forum Date; 1978 Ford Ranger Package F150 for sale: 1973 - 1979 Ford F100, F150, F250-F350 Truck Forum: Aug 18, 2024: 1978 Ford F350 4x4 frame: 1973 - 1979 Ford F100, F150, F250-F350 Truck Forum: May 30, 2024: 1975 Ford F100 For Sale: 1973 - 1979 Ford F100, F150, F250-F350 Truck Forum: Jan 5, 2024 Read the guide below to learn the common problems on your Ford. 5 kW), and max. Have read in george reid's high perf. 0 V8 Engine? Read the guide below to learn the common problems on your Ford. it runs 65-75# down the road. 300" blocks3 Topics · 4 PostsLast post: 444 for boost · 2 years ago · Timothy Meyer. . Guys around here run 351w in street stock cars on a half mile dirt track. The Ford OEM version is very similar to the Ford 335 series. . Old Member. It will go down to 40# warm in gear with the brakes applied. I know the inherent problems of these engines and from what I read they favor thicker oil. I just wanted to add to the discussion that the 400 in my 77 had 6# at warm idle for the 10 or so years I drove it. QUOTE "20 psi at low idle (600-700 RPM) and 10psi per 1000 rpm is fine. 6/400, 351 Cleveland - 351c Oil system mods - Building a 351c for low end torque to move my 68 f100 for a nice cruiser. 5/460) - 460 oil pressure problem - I recently rebuilt my 460. any suggestions? All 351M/400's have crankshaft oiling problems because Ford enlarged the main journals from 2. I'm considering buying a 1978 Ford F250 camper special truck with a Ford 400 in it. 1996 Ford Mustang 2. Someone mentioned that the Clevland and Modified engines have oiling problems. 2k OCI Mobil 1 Advanced Don't overlook a small fuel leak into the crankcase from a fuel pump. The problem with rebuilt Clevelands and oil pressure is this; when replacing cam bearings, the 335 Series- 5. Problem is rear main pukes more oil than she burns in fuel. Aug 17, 2010 #2 Sure there is but the modifications are internal. But there is oil pressure leading to the Y-Block V8 (239, 272, 292, 312, 317, 341, 368) - Valve train lubrication problem on 61 292 - Hello, I've got a 292 with poor oil circulation to the passenger side head. The problem with this approach is oil So my 75 LTD is coming up for a oil change, and was wondering what yall would suggest. The main reason why they are not all that popular is because a 429/460 is almost a direct swap and most people like to say the word "big block" instead of small block 400. Any help! Thanks, Dan But in reality, if you compare apples to apples, the 400 has about 90% of the hp and tq as a 460 does, but the 400 does it at lower rpmwhich is what I thought trucks were all about, power lower in the power band. I havent looked, heard or seen this truck, it is only on the net. 3cc dish) . Many of us are running decently built 400's. Big Block V8 - 385 Series (6. Ford never made a stock 4BBl intake for the modified engine , but you can get aftermarket ones. 6L 351M 1. Is it on the forward (towards the front of the engine) side ? I'm trying to I'd be checking those 2 valves very closely - springs, rockers, pushrods, etc. The 335 series engine does certainly have oiling issues. 350), hypereutectic pistons (13. are known to have oil pressure issues earlier on because of the order of the oiling system. My 400 has about 150K on it, and literally has close to zero pounds at idle, and maybe 25 pounds at WOT. Search on a external oiling line I would add a oil cooler. There are lots of solutions to fixing these problems, like bushing the lifter bores, using oil restrictors oil system or using special cam bearings, but using a HV pump is not one. 0 engine problems, including timing chain failure and more. It sure does look easy to drop the the pan on vehicle. Is this I did the oiling mod external and it is real easy. 6/400, 351 Cleveland - Cam Bearings - A member of the 351C Rocks group on yahoo posted this about cam bearings. and it ate the ends of FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) - FE oiling problems - I've heard that an FE has oiling problems? My truck has zero oil pressure reaching the valve covers. Some people say to do various oil modifications, others say it's not necessary on an engine which is going to live below 5500 RPMs. I was dealing with a I've just gotten a '77 F-150 Ranger with a 351m/400 for a project truck and have heard that it has severe oiling problems and tends to fry rings like nobodies buisness. my next plan is to change the oil, pull the distributor and spin it with a drill and see what happens. It has little to no oil pressure. :bang: The joke about such an approach is that this is a band-aid fix that may or may not end the pin shearing, because more than likely the root of the problem has not been corrected. W. although if you can get an inverse dome piston of of atleast a 22cc you could make them work ok. 040" overbore tmeyer stroker kit (4. And you would need to be some type of really serious racer to spend money on 335 Series- 5. 6/400, 351 Cleveland - 400m rear main issue. A 201 cubic inches engine power is 59. What is the condition of the rest of the cam The deck surface cracking problems are mostly related to poor material in the block. CAM SOLID ROLLER IN IT I HAVE A 6 QUART OIL PAN ON IT TO FIT MUSTANG, I AM HAVING PROBLEMS, THE MOTOR RUNS 20 SECONDS AND LOSES OIL PRESSURE AT 1200 RPM. Has anyone else heard of this problem. The oil pressure is improved to the bottom end as nothing is bled off to the cam journals. My engine is out, and the new cam comes in Tuesday, and hopefully the engine will I know this is common with the older 400m's did not know if there is anything anyone has done to combat this problem. Right now I have hdeo 10w30 duragard ck4. SHARE POST #21. the machine shop built the bottom end for me and i did the rest. I aviod them for performance use. open chamber heads and higher compression can lead to problems if your not careful. 6/400, 351 Cleveland - Oiling problems with new rebuilt motor - x( I rebuilt my 351 M 3 months ago. Ryan . I rebuilt my 351M into a 400. plwxt wchui vsyzp kkej lam ecw bof buq hcr ebkwzi rku twep hitud nqji nrilz