BROKEN FORD 351 CLEVELAND WHAT WENT WRONG? 

Ford small block has never left me stranded with broken parts.

Kept everyone waiting for this one 😂 how awesome was the skyline chop 👌 😎

The stock Cleveland crank is the strongest part of a Cleveland. You must have been spinning the shit out of it. Hope the rod wasn't hurt too. Keep the great videos coming.

USA, here. Played with 351C for years! Sorry bro! Never ever seen that, Probably best piece of Cleveland history.

Hi Bros, Steve here in Melb here, i have an old 351 clevo in a 1984 F truck, 4wd lsd front & eaton gen4 lsd rear locker with a split block, damage to No 6 cyl, has a bent intake rod, cylinder split very close to water jacket, though it still drives, with noticible miss, its only ok for moving it around the yard, itle be up for sale soon, ive given up on looking for engines. keep on keepen on.

That is wild man ! Still can’t wAit for the hydraulic roller cam set up .

That is Wild, tough 351C!

I've heard of variable valve timing. This man got the variable piston timing.

The same thing with the fel-pro gaskets happened to me. With the 7516 manifold, I could see the gasket sticking out when taking the carb off.

Not cool. Glad for you damage seems minimal. I know you will get it fixed back up with Clevo King attention to detail. I have had the Fel-Pro's do exactly that to me twice very close together and not many miles. Thought at first I was botching the Intake Torque down somehow. About a month ago it did it again. Giving the Edelbrock #7265 Gaskets a try this time. Have a look at them for yourself. Seem to have more material around Ports and the like.

any crank can break but man puts the heads in the back of the ute

Wow! I've never seen that either. But good job on a quality break down. You know, not somethin boring like "oh my timing chain skipped a tooth". Na, you did a good one. Love the show guys.

I have never seen a broken Clevo crank. That must have been flawed from the start. Had it ever been cracktested? I have never seen a crank break like that ever. Break through a journal, both main and rod but never through the counterweight. And this is in motoracing as well as heavy trucks. Once saw a grey Holden, Repco head, coasted in running and it sounded real sharp,, it had broken off the flywheel snout. Or about half Chev crank with 3 rods attached at AIR in a Sports Sedan

Knock knock. Whos there?. Buster. Buster who?. Buster crank clean in half!.

what more do you want ( apart from a crank that doesn't break) , this engine had cast pistons, stock bottom end, some lovely heavy heads ( who needs alloy??) an as yet unidentified spec cam, and it roasted that r33 like the piece of shit was standing still. It's not that hard to fix this engine, replace crank and go again. You got to wonder about the crank..casting flaw that led to crack that grew? You'd think the bores would split before the crank would fail.

OMG, so sorry to hear that. What's the chances of that ever happening. Maybe a bad casting. Do some indept research just to see where things went wrong. I lost a FE block because of oiling issues. I know how you feel to have something like this to happen. But it still ran, that is amazing. Keep up the good work. The thrill lives on. Fords Rock.

Hahaha nice work mate. Loved the chop on the skyline to 👌🇦🇺

Sorry to see this happen. Yeah it’s the first Cleveland crankshaft that I’ve ever seen break. I’ve seen plenty of factory SBC steel and cast crankshafts break, but not a SBF. Have you ordered your new hydraulic roller cam yet? If not, have it custom ground based off of a BBC. Cleveland’s love the fast opening and close rates like a BBC. The Cleveland cylinder heads are basically a BBC design on a 335 series SBF. Good luck on your rebuild. Look forwards to seeing your car back on the road.

I've seen this one before, a 302 in an XD Ute of all things about 25 years ago. Dead stock and made a horrible noise BUT still ran lol. Rare but can happen, good catch

When you are the Cleveland King, you build them so they run awesome even when broken and hurt. Testament to the King & his work, round two is coming I expect! I smash it everytime. God bless and enjoy your time on the new monster. Looking forward to j.

Can believe the gasket and I don't know if you have ever tried to use a copper gasket for your intake. But I have never had a issue with one and I have reused the gasket for a few builds. If that doesn't provide proof that you got durable Ford power I don't know what does. Broke and drive it around town a few miles. God bless and enjoy your rebuild or tidy up with the Cleveland. Great engine and power.

Agree that's a rare failure. Buddy of mine ran a stock cast crank in his Cleveland powered Econorail for a couple of years with no issues. 7200 rpm shifts consistently.

Whoa nelly i was not ready for that! Bad luck eh! Nice that it drove home ok.

You drive like most Americans, and I know you take better care of your equipment way better than the majority of the people here. Here it is best and repeat and no maintenance period unless it's a die hard who knows or built and earned it. You know what I am trying to say. Can't believe that you broke crank, OMG I have beat my Ford"s hard and never got a response like you got with yours. Good luck and enjoy your evening and Love your videos. God bless.

bruh when u chopped tat skyline letsgoo

I cant believe that still ran!

Bummer, at least you got some action out of it, I wrecked mine just breaking the cam in ( faulty cam or lifters ). Loving the vids boys

if i didn't see it i wouldn't have believed it. unreal.

Fuck mate that’s crazy, can’t believe you drove that home

May as well get a forged stroker crank now ;^)

Unreal... that's a good effort mate..

I think it will buff out.

Wow bro thattts nutsss hahaha were you giving it much bro hahaha nahh not at this time 😂😂😂

Time for a stroker kit.

The 4ma crank is the better crank. These motors suffer from poor coolant system flow and pressure. The Windsor motor also suffers from crank breakage at the front snout. This is due to too much temp variation between the front and rear of the engine. You need to treat the brass ring under the thermostat with a brass welch plug and a bleed hole. The inlet manifold seal is fixed by making sure the manifold and head alignment are consistent with no out of angle due to the head being machined too far. The other problem is the thin casting of the block as in stock format the bores flex 9thou at 2000 rpm. Concrete filling the block is an instant 50ftlbs gain. I used a mixture of high temp epoxy and cast iron shavings from a brake lathe. So much more to these engines when treated correctly.

Hi thanks for a great and rear video. A question for you. Xd 351 c4 has 2 v open chamber heads has been rebuilt with a little cam in it. I want to put 2v closed chamber heads on as there is a set available to me. Is there any other alterations I have to ensure are done when I change these heads over to avoid any common problems?

Awww man, that's tough luck.

Wow. Never seen that happen before.

Yep those intake gaskets are JUNK !!!!! That's normal that's how they go :(

You guys need a work bench, next crank get it nitrated radius the journals

Maybe worth deburring my crankshaft along with working over the main bearing saddles, on this new one I'm putting together. Plan to spin 7-7500 RPM. Sorry to see this but it did not come apart and scatter your block and the rest of the rotating assembly. Now, that would make a nice deep sounding rod knock sound for sure.

Shit mate that’s bad luck. That must have made such a racket!

I've been leaning on clevos for close to 40 years now, and never personally broke a crank. Interested to see if the bearings are stock or over, if the cranks been out, I would say that at some time it's been dropped or knocked over. Don't believe me. Get an old cam and drop on concrete.....Snnnaap!

It drove home like that haha. I wish I could have heard what it sounded like.

I have never seen a Clevo crank snap !

my 351 Cleveland revs very high, I don't know why, it shouldnt, it's not that modified, 400 cam, performance pistons, square bore manifold , 6140 holly carb, etc , apparently it has no more than 300hp no less than 250hp so the engine rebuilders stated, but the engine sounds like it can do 8000 rpm, I've never heard it at full revs because it's too much, I've had the engine reving so high while going for some strait line speed on a long road , the engine reving so high it sounded like the incredible hulk blowing on a referees whistle in the back seat, had to be doing like 250 kph, hauling arse, it shoots off great from 100 kph apply only a little bit of pedal and in a couple seconds be climbing over 140 kph and still only at low revs, it's like once you get the momentum up the revs drop way down and when you give it some throttle it takes off and the revs only go up a bit

Whooo ! I never !!!

Stick crank and rods on a weak motor (strength wise) is a recipe for disaster.

seen this a few times both ford and chev not related to over reving the bottom end but associated issues in an area not first expected as the failed engines I saw wouldn't do 6500 rpm down hill in 1st gear. the chev let go from distributor neglect just put that to the side for now but hey we're ford people here. to the clevos 1 stolen 51 auto f 100 tired 'ol girl reved enough to drop valve into #1or #5 jaming crank and punching hole in head didn't pull down and didn't get to see all the bits like valve spring shrapnel very tired timing chain hold the chev in your mind for a minute more had a friend with 302 cleavo stock xc black panel van auto coming to work 60 kph zone the whole way motor stopped wouldn't crank but motor wasn't seized moved a little bit put my hand on the crank pulley to turn it over a bit and it was out of square snapped at the #2/6 web made a great door stop, it was only when the replacement motor was fired up in the dark, spark jumping, I learnt the issue dirty dist cap and leads. preignition caused the break bad/dirty cap and leads will cause engines to fire out off sequence or sparks to cross at leads on the cleave the firing order fires 1then 5 dirty cap can track the spark from #1 to #5 with a piston approaching top dead center with a full charge of air/fuel mix waiting for the next spark a disaster in the making at nearly any rpm this was the same issue with the chev despite the timing differences, strongly suspect this was the cause of the effy as well. Always seperate ign leads! So keep oil and dust off them keep the inside of caps clean[ look at the inside of hi energy ignition brands caps many little "walls"to stop dirt and metalised particles from forming tracks to short circuit.] I would like a look at the leads and cap from this motor my money is an ignition jump and preignition caused the break. if you listen to the engine, on one of the "runs" you can hear 4-6 pops in the exhaust. sounds too small and quick to be carb backfire and the engine in other runs revs clean ie no hesitation. have another look and listen

4ma/4mab crank are the stronger cranks Love the clevo

Wow 😳

And internally balancing is key

I’ve got a 73 mustang grande with a 351 Cleveland in it. 2v heads, anyone know the best carburetor and distributor to run on it?

I wonder how much Scat pro cranks are these days?

Not sure if yo mentioned it but is that broken crank a standard crank or one of those 4MA-B cranks ? Do they normally crack like that with hard driving ?

You could not have got any luckier on where it broke

Actually the 4ma/4mab are stronger... Apparently a higher nodular iron.

U need a baffled sump that’s caused by counter weight slapping oil at hi rpm

Rev limiter?

What cam are you running brother?

Hey Mr clevo is a 4ma crank a steel crank? Sorry about your baby....

Clevo King that is no good

😨😰😱

damn

Chop chop

What was the original thrust clearance setting ?

Does this mean I have to be a good boy if I buy a clevo king engine😆

Could you not just replace the broken part and put it back together instead of pulling another bottom end from somewhere? Or can't that be done

Get a 4mab stamped crank higher nodular iron content

Lucky you caught it in time

Shit!!!!! 😳 can ya get a refund bro! Just say it cracked at 5k.😮🤠👍

Hp guess is way off more like 270