is the block even re-useable? broken rod CARNAGE! Chief n Jackie visit the machine shop! 

The block in my Malibu is a Speedmaster Cast Iron severe duty block with billet main caps. We’ve built 2 engines out of them and they held up very good.

Cheif,before i watch,mad props for taking Billy Hoskinsons call late at night to help with a fuel issue,youve got plenty of folks saying that time with him at your house was a good mentoring and got him fired up to succed.Hs mom and dad are top notch great buckeyes lol,but again it was nice to see a guy "YOU" take the time to respond to the little guy looking for answers,and your guess was correct.have safe motoring and i watch all your videos to,even at 60 lol.

Lol that dog wants chief's attention! Just watched Billy channel and it was cool you helped him out !

You two are really living the dream. I’m so happy to see you both in real life chasing your dreams. Go get it MWSC. CaddyJack will be right in no time.

Love how often y’all have been posting videos! I have faith we’ll see Jackie making hits in caddy jack again soon.

Best comment section on YT, period! So much engagement. The genuine content + down to earth good people = the best kind of success on YT. Your fans will rally behind you when it counts. Appreciate the videos! Great work on the editing Jackie, it is already top notch and only getting better!

Thanks for the video comment update

Man I'm really digging these engine related episodes Chief and Jackie! Brings back some good old memories. If two bores side by side are both 4.185 on a std 4.400 bore CL sbc, that leaves .215 between the cyl to seal the head gasket, which is plenty AFAIK. Now bore one of the holes another .020 @ 4.205, you'd only have .010 less @ ~.205 between the cyl's. Bore stability becomes a real concern though and more so on nitrous. It would likely have pretty crappy ring seal under full power with the bores moving around. In my mind, a 4.185, 4.4 bore CL sbc would be questionable for a high power nitrous deal. If that block proves savable on the main line, I'd sleeve the 4.205 hole and fill the block up to the water pump holes min, as a band aid before it's honed. Better yet consider switching it to methanol and fill the block all the way up to the deck.

Thank you for being so kind to animals. I loved the chonky machine shop pooch

Jackie don't go straining to hard. You gonna bust out those jeans! 😂

Aww! The doggie was so happy to see you! ❤

"gave it one hell of an Indian wrist burn or whatever" I literally laughed my ass off at this 🤣

i don't know anything about engines, i just come here to see chief.

This is the big chief we all wanted! Awesome content, love the back and forth with src as well!! Too funny!!

This engine opened up the eyes to exactly what block you actually need, just love the content

Hi Jackie, Chief, I'm getting spoiled on tuesday's and thursday's for your videos. Hope these repairs are fast don't cost too much. Thanks guys!!!!

Great video!! I'm always so scared of buying used stuff. Unfortunately sometimes it cost as much or more on the other end to get thing sorted out. Got to start somewhere i guess. I would be more than happy to fix your oil pan or build you a new one! I've been a welder/fabricator for pretty much 40 plus years. Thanks for the updates. Its cool to watch you guys on videos vs the old FB and Instagram days.

Seems like you’re wasting money and time. But there both yours. Will it be a good backup engine once it’s finished?????? Hope so. With the shortage of parts one has to take a chance. I waited 6 months on a TPS from Holley. Biden has things so screwed up 🆙 my wife works in the automotive industry on third shift. Normally there is 75 people on the shift. For other two years now they have been at 3 people on her shift. So dammed sad. Have a blessed day you and your family. Including the cats.

Happy to see it’s getting done in a timely manner. Can’t wait to see you both out testing again. I bet it will produce some surprising numbers after all you found.

Dude now that I really think about it ...your really the last 405 Street Race Car Driver...because now it's really Ryan Martin and the 405 Cheerleaders...lmmfao

Im sad to watch this video, Why?? Because now I'm all caught up from all the way back to the Out of alignment rear axle and torn up crank in the Corvette from last summer. You guys just make such great content. And make me laugh so hard with your banter back and forth with each other.

Glad it looks like it can b repaired even if it’s only for a little bit. Also thanks chief for being so helpful not only on your channel but helping billy and his family out is awesome! Can’t wait for the 2nd Tuesday of the week!

Dam shame we don't build notta in this country, Tin valves were the rage in 80s 90s, hang in there chief, old street racer from Nashville, take care of yourself and neighbors

Right on man. Just a dumb Ford guy here but them Chevys have there place. As a 🚢 ⚓ 😂😂. Just kidding. Just remove some material from the oil valley in the rear of the block and and add some up front. Find a happy medium so the oil flows evenly. Old trick is to pour oil on a level block and see witch hole it hits first. Give me shout out if you think I maybe on the rite path or iam I a real dumbass

When Chief said “yeah I need a lot of things” I felt that 😂

I'm the only one in the comments that has absolutely no fuckin idea why #7 said "Well...bye" 🤷

Great video, Chief. Some great explanation of what's going in with the engine.👍

HI HOW DO I GET YOUR CAR YOU SIGNED ? PLUS WAS THE ENGINE STEAMED BE FORE REBUILD ? AND BRUSHED ALL GALLEYS ? I HAVE WATCHED YOU ON YOUR SHOWS !! IF YOU CHANGE HEADS GO TO SPLADE HEADS FOR CHEVY OR DARTS HEADS THAT ARE CLOSE TO THEM . BUT WILL NEED SHEET METAL INTAKE . THEY ARE THE ONES THAT LOOK LIKE BIG BLOCK CHEVY FOR SMALL BLOCK CHEVY KEEP DOING WHAT YOU ARE DOING .

Being a serious animal lover. It's so cool to see how much you love animals as well. I've come to find in my years of living. That people who are animal lovers are really good people in general. Keep the videos coming.

Sorry to say, oil starvation caused this chain of events. #4 is the last to get oil. You starve #4 main to the point of Bronze, you kill #7 rod. Once the rod bearing disintegrates, the piston travels further in both directions. Now it's hitting the counterweights at BDC and valves and the cylinder head at TDC. If it doesn't rip the pin out of the piston on the bottom, it will hit the head on the compression stroke to the point it wants to stop the crank in it's tracks, bends the crank, and ejecto-mundo the rod. Especially at rpm. During overlap, It hits the open valve to the point of wanting to push it back up through the rocker and snaps the tips off the aluminum rockers. With steel rockers, it wants to bend pushrods...It doesn't take much for all of this to happen, as you were aware of when it first starting "acting" different. Will always give clues. Snowball effect, it all stemmed from starving #4 main. If it happened just like this before you got it, and it happened again while you have it, the issue lies in the current oil system. A few things I look for when I see this: -How much oil is being run? -Oil drainback. -Returns at the back of the heads? -Return in the valley? -Windage tray? And if so, ample return to the pickup? -is the pickup isolated in the pan? -Type of pump? Geroter or spur gear? -Windage -Aeration due to Windage or too much oil? -How much vacuum is being pulled at rpm? Oil pressure doesn't equal oil volume. 2 different things. Checking oil pressure at the back of the engine doesn't tell the whole story of what's going on up front. As for the block. It's very common for guys running nitrous to have slightly different bore sizes, as they only repair what is needed at the time of failure. It has seen it's fair share. However, wall thickness is NOT the issue with these blocks, as they are usually .250" thick at 4.200". I build A LOT of big inch small blocks at that bore and larger. At 4.250", they are still about .200" thick, which is plenty. Don't ever go by the "recommended" max bore size. BUT, the issue becomes sealing area for the gasket. BIG nitrous, you don't want a lot less than about .200" between cylinders. It also depends on how you are sealing it. A good setup can see roughly .185"-.190" before you start having real issues. 4.210" is the limit with nitrous for me, a small block at 4.250" is the limit for NA in a 4.400" bs block. Boost is where you really limit the bore for gasket sealing benefits.

No one really knows what happened, only the engine, and it ain’t talking. No how hard you beat on it!

Animals know kind people, that dog and your cats love you guys

Can you guys tell Chief is a whole lot happier now that he ain't doing that list racin crap.

DuPont overhaul chief

Great video. I am surprised Billy Jr or the old Man don't have any extra valves... I am sure you have asked them already. Chief & Jackie you 2 love birds crack me up sometimes. Some of the shit you 2 say. Anyway Thank you for sharing.

Look at Jackie handling that block like a paperweight.

Hi Chief N Jacky! I was watching old rerun of you building Crow for Gas monkey challenge amazing how far you come shows persistence pays off. Caddy jack will be on top soon with you guys and friends hard work 💪 ❤️

Well I have not had a chance to read all the comments so somebody may have come up with a similar response but from what I can see due to that being the rear Rod that gets hotter than any of them and I'm wondering if maybe you need clearances were too tight and just like you're saying and oiling issues inside the crankshaft where to get overly hot swelling up and caused it to overheat

You're not in the right shop if there isn't atleast one air line leak somewhere hahah

Cheif woman don't like riding in a dirty truck lol

The vicious cycle of drag racing.

I would have given you a 350 or 400 4 bolt except my whole garage got vandalized and stole everything. Northwest Indiana bench racer.

“My Dad’s a TV repairman. He’s got an awesome set of tools. I can fix it.” -Jeff Spicoli

Love Jackie's burnouts lol

I hope you show the welding and fabrication on the oil pan???

Sounds like the motor had issues to start with. Should be 100% with new crank and rods. 👍Preheat the pan before welding if it's alum. It will help clean impurities and give you better penetration.

Chief cracks me up! We’re on max max!!! I’m glad you guys can have a laugh when it’s all looking sad!

My old lady loves throwing a hotdog down the hallway 😂. Great vid guys🤠

Gerald is hilarious

Which block are you using? If that’s a Little M or Iron Eagle I’ve seen them go 4.250” with fill in the bottom half

No the one I'm watching hours it still Jackie's motor that didn't have oil pressure certain part

Absolutely love the wealth of knowledge you provide us with. I'm not a gear head but love watching your content. Still to this date the funniest video ever is when you and Shawn are comparing sparkplugs to soldiers . ROTGLMFAO everytime I watch it.

Hope y'all get everything back together with no issues bro I really enjoyed the show keep them coming.

I see the problem, it ain't got no gas in it

Love getting all the tech updates. Keep up the great videos

Chief just described how I tig weld aluminum 😂 lmfao real recognize real

Scrap the sbc put a Pontiac motor in it

I had almost the exact same thing happen. I hung a rod thru the oil pan and drive the car on the trailer. Obviously a spun bearing similar to what you found. I started measuring the bearings. The thickness of the bearings where slightly off. Now the one that failed was toast and I couldn’t check it. My theory is some of the bearings didn’t have the clearance they should have. ( It was a bought short block that I didn’t build ).

The scratches on the mains on the block are probably when the machinist put it in the hone....

you guys have finally fine tuned your social media presence … kudos to both of you

That piston being across center like that the rods of 7-8 would be rubbing together

Only sure way to prevent it from happening, is sell it or leave it in the garage, but what fun would that be. You roll the dice every time you fire one up, pull to the burnout box, and do what you do. Keep the videos coming, keep your chin up, and let's et eat.

Thanks for telling the rest of the story...once those bearings straitened out the tangs and start to spin (who knows, bad line bore, too quick a rebuild job, clearances too tight or flat out not checked, rods not checked and resized after replacing rod bolts on the big end, or an unprimed startup in too cold weather when all the parts are shrunken to closest tolerances), the welding job began and extreme heat began radiating outward from 7 to 8, to Main 4 in a cascade eventually leading to the bent crank (no telling if it was bent slightly in a prior repair, not checked and just reused either), and each bore being differently fixed at different times (shown by the different bore sizes according to your detailed measuring), that block has been through hell and back a few times. Once he line bores it properly and balances the internals to match, new crank and hones the cylinders to custom match each piston overbore (since it appears you have the necessary pistons to correctly fill each hole, new rods and crank going in, and he only needs to match up 1 piston to bore as the other 7 are still appear useable from your inventory, and 1 main cap to repair, bearings and seals and reassembly and mild machining otherwise), it is a budget rebuild vs a new block and all new internals. It will be a fine spare in emergency use backup, you can quickly use for content while her other bullet waits for parts and to be completed, and get it again lined out, and know what it would do when and if you need to use it later. Hopefully the timing works perfectly for both of you this time, and it stays together, you get all motor pulls, a few spray pulls, a decent working tune that you can depend on and lots of data with no oiling issues. And that her parts come in and the other engine is completed in the meantime, so you can pull that 1 out whole and working, as I agree it may do even better than what it did since you already have a good data head start on the tune (as long as you pay strict attention to where that cam was installed last time...am sure you did keep great notes since you even re-checked rod clearances on the disassembly). Degreeing that cam to get close to the prior install will be key to using that prior data correctly as you know. He is right, proper balance of the reciprocating mass internally and proper clearances (main and rod bearings, piston to bore, ring gaps, etc), and that block will not even know the bores/pistons are all different sizes, though you will know if you do a compression check of each hole as combustion chambers at installed height heads on and torqued will vary slightly, though no more than a factory small block that has never been machined. Head combustion chambers that have received no work especially cast alum heads upon proper ccing will often show as much as a 2-3 cc difference between chambers, so there is that, and (I run a Stocker and we cannot touch the combustion head chamber at all, so no changing that mfg issue)...I have not done so on mine, but am sure since we can bore cylinder over to 80 thou over and still be within our ruleset before a block is out of compliance and unusable, but rest assured I am sure someone in the past has figured out the way to balance out the smaller head chamber cc issue to larger is to overbore only specific cylinders to even out and match cylinder to head volumes exactly on purpose and still stay within the very specific extreme ruleset we bought into and still take full advantage, where yours is just by former/current breakage and repair. Here is wishing your path on that repair is smooth for you both, and think you will already be getting showered with valves, call Billy and see what uncle Bob has on his shelves, as I am sure he has a bunch and may have just what you need.

Cute shop dog, if it aint one thing its 12 others.

You guys are awesome keep sending videos they are interesting 🚦

The lines in main journals are from tooling to center line in machine when u deck the block check deck hight .piston clearance to head, an valves. Circle track deck blocks to get comp. Cause they can't change piston in certain classes just something to think about .great video s can't wait for the next one God bless

Killing it on the vid’s taking up bill an Billy’s slack too keep it up chief an Jackie

Man it obviously happened few times before. Fix it sell it. Get a new one

What about the front-of-block oil gallery plugs ? are they oriented correctly ? is the block running any restrictors ? 443cu from a SBC is still impressive...LOL

WOW where did you find a Heinz 57 engine at I haven't seen one in years. That's a sure sign of two things 1 short on money and can't do things right because of it. 2 Joe blow engine rebuild from under the shade tree built the engine and said on it's like new and will work I am only selling it because I got a new motor because I screwed this one up. . I have done the same thing back in the day and a win even 25 runs was good but as I got older and smarter all that changed and my car would sit for I hate to say it but some times 15 weeks waiting on me to get the money gathered up to fix it the right way. Then I found out how it felt to win more passes the lose. It's better to fix it right than to patch things up I know money is tight but if it breaks it cost more. Good luck hope it works out for you. Take care stay safe.

I met chief in Bristol few years back he was busy as hell taken the rear end out of the crow and out of Sean's pile and went on to win against Byrd bros.just a throw back . chief and Jackie are great . wish the luck they're having would change here lately. Please keep up the great work I really enjoy seeing the content that is produced from producer Jackie😉

Good luck guys!Big fan for years! Love what you guys are doing. Thanks for sharing Glad that you have more time to do so Quick question do you believe in Breaking in the rebuilt engine?

Chief and Jackie y'all rock! Love the channel and content! Peace

Awesome video as usual and i have one question or just a wish PLEASE TEST CADDY JACK AND THE VETTE TOGETHER ONCE THE ENGINE IS FIXED Just a small race perhaps.

Im pretty surprised you don't have those steel engine crates that you bolt to the block to transport it. They are pretty cheap and extremely useful.

Good work and thank you for the updates. You will get it right and show everyone what it takes to make a competitive race car.

Hello sir I'm very big fan of your. Is there any opportunity to work with you as a mechanic

EATMON RACE ENGINES SHOULD HAVE SOME USED TITANIUM EXHAUST VALVES, BOUGHTT 10 OFF HIM LIKE A MONTH AGO but there sitting at the border,, my intakes are only 2.180 but i just got 3 from manley shipped to m&m raceengines cause they have my heads

Small block chevys run their best when they are about to give up

I had a engine go bad 8000rpm 383, looks like the No. 2 main cap spun a bearing. Rod got a little hot, but bearings actually looked OK. Bought a new crank and had another block (mid 70s 350 4 bolt main) and had it machined to match the pistons. Best I can tell, the NO. 2 main cap walked a bit. The machine shop that did the new work likes to stake the caps to ensure they are tight so hopefully that doesn't happen again. So, $1200 or so to get the new block ready. $600 for a new chi-com crank. New rings, clean the pistons, check the rods.... I'm going to lower the rpms a bit and run a big block oil pump. BTW, the old crank looked good, probably could have been fixed .010 or .020 under - but I had it mag'd and it showed a crack right at the radius. It is now a boat anchor somewhere.

Hahaahaa I immediately stopped exactly at 2.32 when I heard that, what a reaction!!!! Ok now I'll watch the rest! Thanks for the walk through!!!

Hell I can tell Ya what happen. The rod broke!

Ouch that looks expensive I hope you get it done I been watching you for 11 years and I’ll stay with you and Jackie stay safe cheers keep or Dragging and have fun catch ya ❤️💪🦘🇦🇺

Miss Jackie! I'm gonna send my wife out to okla to be your shadow for a few weeks!!! She definitely needs some "help your husband load the engine block" training!!!! Nice to have a partner with similar interest.

My favorite channel you tell it like it is no BS And you have a woman that is every man's dream not afraid to Work and get dirty great job to both of you

It's gonna run like a striped ass ape !! MWSCTTF 🇺🇸🏁🇺🇸

I'm only here for the workshop cats. And we all know it was Jackie's fault... 🍄

Does chief reply to everyone's comments? He's got a lot of subscribers. Unlike others that don't but they want you to subscribe. My ass. I won't leave positive comments or likes again.

Well..there are two scenarios where this happens,oil starvation or bearing clearance.Judging by the condition of all the other bearings (not great but a whole lot better than #4) oiling isn't the best but I'm going with clearance issues.That crank was bent all along.Chief got scammed when he bought this engine and the seller knew about it..nuff said

Roll reversal, chief calls th3 kid to ask for welding tips for this clapped oil pan 😂🤷🏿‍♂️

Just asking a question about something you don't hear lately. What happened to the fractured rod cap craze???

After watching the video and listening to everything I would ask has the block had a sleeve in it at some point? What did the cam bearings look like. Based on what I've seen I'm bettin on oil pump failure, and if the main bore's are not exactly the same,, did someone replace a main cap an try some ol school shade tree let's just hand file it , to get it back together? I hate to be negative but I'm thinking whoever ya got that motor from knew it was worn out, theirs no way they couldn't have. With all the inconsistentsies , I hate it for ya but sounds like ya may need to choke somebody out! Best of luck to y'all, I really hope ya get her back together soon. D.M.

It's a normal small block chevy.? What size block. There dime a dozen and cheap why not just go get a good one

Hope you get whatever caused the break figured out Folks

Hey Big Chief love the video. You and Jackie and the cats always make me laugh 😂... Yeah another thing when you bore the cylinder over so much and I know you have to correct stuff but it can make the motor overheat because the cylinders get so thin. But I know you got to do what you got to do just to get by I feel you I wish I had some valves for you. God bless you Big Chief we love you brother 👍

I’m not fixina sit here and try to theorize on why that motor fucked up, but ima just assume that block has seen sum terror prolly rode hard n hung up wet every weekend since 2006🤣🤣🤣

I have a carbureted 283 that identifies as a 550 inch Donavan mechanically injected hemi, # the struggle is real

Sorry, I am very new to this. But couldn't you just go to a junk yard and get another block instead of putting money into a block that is no good. Is this a special block or something?

Love to hear you talk about converters, staters and the different applications and such. Great Content BTW! Bye :)

check oil passages before the put it back to gather cracks in block! heat makes mess then! this was a guys car it died! it never run again ok take my car i took 360 dodge truck block! out and a hemi went in! he was nut so & 360 went home with me in a trailer 2300 miles mad max style parts all fit right? my dad said sell car 100 dollars ok i got a small ford car little box like thing, with a strait 6 ford! or a 400 dodge i went with ford my dodge was a u-joint after fixed a bad ending high speed wreck ruined it all! owner in hospital for 4 days! i got bad eyes bad arms bad legs & slow stuff way to go! this might cost you all the kings men and doctors can not fix you! ( or like with me the right number & name the out look changed) my uncle lived threw what cancer? and everything saved!