Hey all. Bought a 225 slant 6 engine recently came outta of a1971 Cuda. It supposedly had 39k miles ( of which I'm highly skeptical ). The car was from.So Cal and apparently sat at a body shop for 20 years doing nothing. It made its way up north about 5 years ago. The owner wanted the car for its body so pulled the slant 6 but eas running it as late as summer 2017. I bought it cheap enough and do not expect a new engine. The engine stamping and casting numbers verify its year displacement etc. So get it home pull valve cover duper dirty rockers yuck. Pull oil pan fairly dirty oil black and dirty and some sludge. Oil pick screen not clogged. Not sure where it will be going. I hope to clean it up and run as is. The engine feels like it gas good compression by turning over the pulley by hand. The pics and yes little orange can of death oil filter..
Ive seen FAR worse.......if you're going to clean it up, kerosene works....in '05 or so I saw a completely restored '70 convertible! with a /6.......wonder if its a clone now too?
Knew 2 guys with /6 marine engines. One in a heavy steel hull, the other in a runabout . Both were GR8 & dependable engines...have fun! mike
kerosene and run it and drain treatment? I was going to pull rocker arm ***embly clean up that and clean out pan and try running some type of cleaner through it.
Pulling the rocker arm ***embly, and detail cleaning the individual rocker arms might be a good idea. The p***ages through them weren't all that big to begin with, and could clog rather easily, and being that so many slants were neglected as they were, it would be good preventative maintenance at this point. Do pay attention to the orientation of the rocker shaft, and that rear-most, hollow rocker shaft bolt. It's where the oil comes up from the bottom end to fill the rocker shaft. I agree with the kerosene cleaning. I did that with a used 396 years ago. Dropped it into an O/T car, poured in a gallon, and one quart of 50 weight, and fired it up cold. Let it idle until it started getting warm, then drained and changed the filter. Got a lot of gunk out of it, too. Roger
If you want a almost bullet proof slant 6 find a industrial one . They were used in swathers and other stuff. The crank is journals and throws are huge . The exhaust valves are bigger .
Yup the IND engines have a couple of 265 flatheads off m***ey combines. Bulletproof if half ***ed cared for. Low oil dirty filthy and no oil will put those final bullets for the kill. Change oil regularly and dont overheat engine can last a long time. Its said a cared for Slant 6 could last almost forever.
That engine looks ok, from what I can see. I wouldn't bother spending much time cleaning stuff inside, unless you find loose material that could move around. As said, guys who worked on engines for several decades have seen far worse, in engines that were still running ok. But before you make too many plans, it would be a good idea to be able to run it, and see if it smokes, knocks, or leaks.
A friend of mine did the kerosene trick to his 289 Mustang. It was running great but was dirty inside. After running the kerosene thru it, it was clean as a whistle. It KNOCKED...but it was clean as a whistle. Ran really nice after the rebuild. Engines require lubrication. Any kerosene that goes near an engine of mine will be dripping off the end of a brush unto a silent engine.
Here is my 55 Fargo pickup truck. Have a 228 ( tired out) but duals carbs and exhaust. It has a T98 4 spd trans mopar 8 1/4 3.23s. I can build a 265 for it or go slant 6 and A833 overdrive. The flattie or slant can go into another project. Most likely staying 265 flattie but you never know. The truck. The engines.
Just curious, have you measured the length of the two engines, from the fan to the back of the head? to make sure it fits. The slant 6 is a short six, but I don't know if it's that short.
Err on the side of caution! Yup going to clean the top end today brush picks solvents air hose and shop vac, plenty of rags...
They are great engines. A mechanic at our dealership had one that was still running after 300,000 miles. Rings bearings and valve job at 100,000 mile intervals like a big tuneup.
Yup they fit and Jim from NY has the same in his 56 Dodge truck. Dont forget Canadian vehicles used the longer flatheads only besides the first V8s in the C series trucks... The slant fits in tight but well in these trucks. Now having said this dont think im.going that route. How bout we put it in this...lol
Hey Jim, gotta agree and thats the plan. The seller is a good ole country boy nearby. Phoned me yesterday about a 440 and 727. So asked him again i say look can i run this engine as is? He says it ran well started easy, did not knock or smoke. I explain it doesnt matter to me as i can rebuild it or whatever. He insists it runs well, we shall see...lol
Okay so wanted to get acquainted with my Slanted 6.. Pulled rocker ***embly cleaned everything up re***embled it all. Not hard to do but the cleaning was not easy without right stuff meaning big solvent wash stand. Most likely this was a futile effort but a learning experience ...lol This friggin ole slanty is filthy. But feels like it has good compression.
I've cleaned several somewhat sludged up engines that were far worse than that just by s****ing and washing them down with Kerosene or diesel but never by running one with Kerosene in the crank case. That one doesn't look very bad for one that has been sitting around for years with old oil in it. I'd make sure all the p***ages are clear and clean it up an put it back together an go. Years ago a huge percentage of the New York taxi cab fleet ran those engines without much of an issue. They are dead nuts reliable of they were taken care of. I never like them because they are a pain in the **** to work on in the smaller cars they came in and they always seemed to come in with a number of oil leaks. A lot of the people who bought them treated a car with about the same regard as a household appliance and didn't take much better care of them.
Sweet score. I tried to buy a non-HAMB friendly car with one for my first car, would've been $400. Too rusty for my dad. Friend of mine has one in her DD, it's got 143k on it. Previous owner ran it for a year with kerosene instead of Oil, it's still running good now that it has Oil in it
heres our 1918 Dodge Roadster with slant six been on the road for 9-10 years , runs great and with the offy valve cover and boat motor air cleaner everyone asks what kind of engine is that ? A offenhouser ??
So now that I have a slant 6, and a Chrysler 265 flathead on the shop floor, which should go into the truck to replace the tired 228 flathead 6? You guys got an opinion on this?......LOL
I would clean out the pan and rocker cover, put it back together with fresh gaskets and let it go at that. I don't like the kerosene wash treatment, to me it is asking for trouble. If you are worried about cleanliness fill with fresh 10W30 and a good NAPA Gold filter, and change after 1000 miles. You probably already know how economical, reliable and long lived those engines are. They respond very well to a few simple hop up tricks and can really perform in a light car. Leave it alone and do normal maintenance (including valve adjustments) and it should be good for another 200,000 miles. How good do you want it? Kerosene wash may do nothing, or it might shorten life by 199,990 miles.
******************************************************************************************* I think I'd look into dropping in that 265 flattie. It's most likely a closer fit, and may even bolt up to the bell housing. I'll concede that there isn't much, if any bolt-on hop-up parts for it, but it's period correct. Roger
Well Roger there's plenty for 250s and 265s tri and dual carb intakes, aluminium finned high compression heads brand new EDGY cast by Edelbrock, hi perf cams, headers. No issues there my truck is not a restoration, and slant 6 is old skool at this point. I love Flatheads but what is the better engine with the most bang..
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