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Aww, heck! Kevin found a way to avoid doing brakes for once!

I remember those. Not much for fishing, or skiing, or a relaxing trip with friends, and not popular with quiet boaters, but they converted 20 gallons of gas into noise faster and better than anything else.

The square body hooked up to the 70’s model jetboat is such a vibe

I remember seeing so many of these 70’s jet boats on the lake every summer when I was a little boy in the 80’s. I always thought they were the epitome of cool especially with the big chrome Bassett headers sticking out the back. Then slowly the ugly ski boats took over as these nostalgic jet boats faded away. Summer’s were never the same again. Thank you for reviving one of these sexy boats from yesteryear.

The transmission in that camper was a TH-425. It's a TH-400 with a 180 degree chain drive to make it point forward and then the center section of a rearend bolted to the output. The front suspension that goes with those transmissions is very similar to old GM 4x4 front torsion bar suspension. Those transmissions were used from '66 to '78 in the Toronado and the Eldorado.

Not sure if you ever come back and read comments on these older videos you have put out, but this video reminds me of a story I would like to share. About 30 years ago when I lived in Dallas, my neighbor across the street was kind of a strange character. I came home one day to find him out in front of his house looking at a jet boat just like the one in this video that he bought and drug back home. Had the exact same set up with a 455 in it. Same exact problem. Milk shake oil. He bought the boat for like $500 and hoped I could help him put a new engine in it. Luckily for him I had a good mechanical background and agreed to help. So he goes out and buys a long block crate engine for it. I think he paid about $900 for it. Again, this was about 30 years ago. So we remove and replace the engine, and one of the things I remember was having problems with initial start up. I recheck the firing order 3 or 4 times and kept scratching my head. Then I pull the distributor cap off and have him tap the key. DANG it I forgot these engines turn their rotors backwards as compared to Chevy's which is what I am more used to work on. So I fix the wires and bam it fires right up. So off to the lake we go. As soon as we back the boat into the water, I am getting worried. The wind is blowing like crazy (like it always does in TX) and waves start to crash over the stern which is only about 4 inches out of the water. Of course they don't have reverse and they are always in gear when the motor is running, so we finally get it turned around with a paddle, fire it up, and off we go. That thing ran great!!! We had fun playing with the trim and shooting a rooster tail 50 feet in the air. Ran it for about 30-40 minutes and then headed back to the dock. Got it back on the trailer and pulled it out. Checked the oil. Milkshake again!!! We were like DAMN that SUCKS!!! At that point, I figured it had a cracked intake manifold since that was the only thing we reused off of the other motor, but my neighbor was done with it. We got it back home and it sat for about 4 or 5 months and then he sold it. He showed the guy who bought it the water in the oil and told him the whole story. I think he still got about $1,500 out of it so he didn't lose any money just our time and lots of aggravation. I am hoping the guy that bought it was able to fix whatever was leaking (might have just been the intake gasket I don't know). This video brought back a lot of memories. Not all of them good but not all of them bad either. LOL!!!!!

Maybe not the fastest boat on the lake, but definitely the best sounding one🤘🏽so violent

"I don't know anything about boats, and Angus doesn't know anything about self-restraint" Perhaps my favourite quote ever on this channel. 🤣🤣

I had read that they used the Toronado engine/transmission power pack in RVs, but had no idea they made them front-wheel drive too. Would have been hilarious to watch you drive around the front half of the camper before taking the engine out. Thanks for the great video!

That is legitimately the most American sight that I have seen in many moons. It's a boat, with little to no purpose on the planet earth, making high speed laps around a large body of water, all the while making what I consider to be an obscene amount of noise. In short, good work guys!

That jet looks like something the main character would drive in the opening of a 70’s spy/action tv show

This was one of the best junkyard digs episodes ever made. AWESOME JOB guys

The part you are referring to as a windage tray is actually a valley pan, you'll find a windage tray in the base of the engine under the crankshaft if so equipped.

Spent a few weeks every summer on the Shuswap lake in Canada. In the '70s, big block jet boats were everywhere, some sending rooster tails for 30 yards... and oh that sound and that speed. Nothing else like it.

I have to admit Angus is getting better on camera. Excellent video today got the boat haulin ass. Many big buckets to you. One of the best videos you've done in quite some time🤣👍🇺🇸🍺

Man these things were hugely popular in the 70's. Seems like many of them had 455 Olds engines in them.

Did you ever give Dave a call back with how the boat is running? If so, hope is very happy hearing his grandfathers boat running.

Thanks for the off beat different "revival". It reminded me of a little adventure. Ages ago, when I was about 18, I was interested in a girl who's dad had similar type Berkley Jet boat with a 454 dual quad engine with muffled exhaust into the water. He let me take for a spin on an early August morning when Okanagan Lake was glass. He told me to open her up (the boat silly) as I'd been running boats since I was 5. Anyway I had it running (with the Girl as copilot) at 74 MPH according to the speedo. The owner said no one had ever got it going that fast before. Somehow he never asked me if I wanted to take it for a spin again. Thanks for the memories. 😉

For a second I though you were gonna get the RV running and drive the front end around. 😂😂

The RV was pretty sweet for free it's better than a tent . Very entertaining videos thank you we look forward to watching them. Awesome positive entertainment.

Oldsmobile engines are actually pretty scarce these days, a few months ago a buddy of mine needed a "small block" or "short deck" olds engine, we really wanted a 403 or atleast a 350. For weeks the only engine he could find that was in running condition was a 455 but I said no way, it would have been too much to swap into the car because the car was set up for a short deck engine because it had a 350 olds in it ( the accessory brackets and the exhaust was the main reason why we needed a low deck engine) so he kept calling around and after we gave up for a bit the junkyard got in a wrecked car that had a low mileage roller cam 307 engine, I was not thrilled about it but it was very clean and after we put it in, it actually ran way better than I ever thought, it was super quiet and smooth and felt just as strong as the wore out 350 we took out. So in my opinion if you ever need an olds engine that is reliable and will get you down the road, try to find an 86-90 roller cam 307.

This must have been so much fun doing. Angus is a perfect co-host!

Nothing like watching jyd at midnight while at work in the uk and been impressed with how smooth Kevin pulled off the raycon sponsorship

Being a little on the old side, I remember a tourist promo film about New Zealand where they took jet boats up rivers and skidded over sandbank as no prop. Such a lovely boat and a fantastic engine. Awesome episode!

I did indeed learn something from watching this video... I learned I have no self control and immediately started scouring marketplace for old big block jet boats... heading to ohio, brb... and if my wife is reading this... I'm definitely not picking up a project jet boat in ohio... its... a gift... for someone else.

A Whacker in jean cutoffs and sandals manhandling a snow mobile was not something I expected to see today... That boat is a beast! Thanks for the episode.

BOP engines are underappreciated gems of their time. Its amazing how well that thing runs, given the amount of water in the oil and gas (at the beginning). The real question is, what to do with that spare 455.......

With a boat that has water in the oil, I have found that draining it, filling with diesel fuel, running it for a short while, rinse and repeat a few times. The diesel soaks up the water, still provides some lubrication.

I'm so so confused watching the exhaust blowing water out that looks insane to me lol...who thought of that? Have to add that motor is pretty amazing with all the years of water in the oil still running like a champ you have to be impressed. As mechanically inclined as I think I am I learn something new every episode you put out.

I am having the same issue with 70s era jet /olds 455 setup. This is exactly what I’m going to do to get me back out on the water! Thank you JYD!!!

I really Really REALLY hoped Angus was going to pull the boat out with the snowmobile 🤣👌. great update 2x👍

Sweet jet boat recycling. That oil 🤔 er milk shake was incredible , ive never seen any that bad. Great come back...

That moment you realise Kevin missed the opportunity to drive the front half of a front wheel drive camper around a field!

Love today's, Jet boat, content. But what I actually Love the MOST..... The Brown Chevy Truck. The Truck that actually towed the Jet Boat around. Nice to see a Chevy truck! I know that Mook is working on a F250 but I would love to see her work on the 73 Chevy Nova. I use to have one. Put in posy trac/sure traction in the Nova.

Pulling the engine out of the camper and Jessie steering it has got to be most funniest thing I've ever seen 😂

That boat looks perfect being when it’s being towed by the square body

Had one dem boys. A Hallett with the 455 & Jacuzzi pump. My biggest regret was putting on those pipes. The noise drove me and everyone else crazy. Second mistake was blue printing the pump. The motor couldn't handle it and I spun a bearing. Bought the boat new $5200 trailer and all. Best money I spent was on a boat cover. The gel coat looked new for many years.

Glad to see you got that big block classic back on the water and performing as it was designed to perform. Hope you have many happy years of boating ahead. Great revival!!!

That 70's square body and the 70's jet boat make a perfect couple.

I usually read some comments while I'm watching and I gotta say it is awesome that this many folks have the knowledge that can truly be helpful. I applaud every one of you legends. 👏🏾 thank you for helping Kevin in the background. I mean, heck, some of the info we bring up might help make the next episode possible. Kevin and Mook, love you guys. Your brother from as deep south as it gets- T. 🤙🏾

Awesome job, guys....grew up late 70's on the north shore of Long Island...that boat rocks! But not as much as Angus's square-body! Hugs to y'all...keep up the good work

Enjoyed every minute of this. Love the long videos! Thanks to all of you in the JYD Family. Can't wait for the next farming video!

I’m surprised at just how quiet the boat is

notification squad, Have a nice weekend!🔥🔥🔥

Good quote. Good quote. "Your hearing loss is not service related"

That revival looked like a lot more fun than getting mouse poop blown all over you from the vents of a car or truck that had been sitting 20 years. 😁

Absolutely LOVE the boating content. This video and the free boat that was hooked to the truck that you worked on with Vicegrip garage was awesome as well. Not a lot of boat revival content on KZfaq, Keep up the fantastic work you guys!

I appreciate how you are always mixing it up on this channel and unafraid to tackle something different.

That shot of Angus pulling the boat out with the square body was epic. What a setup!! I wish my rig (6 speed, manual swapped Honda Odyssey with limited slip) was half as cool.

Hey Kevin love your videos really got me into old vehicles and soon I hopefully will start doing revivals of my own :)

Well done all, amazing what actually looking at the engine can reveal, and with proper repairs you've got a great boat. It seems a far cheaper option than wasting oil. Congratulations and happy boating.

That's a damn good looking square body!!!! Sounds good too.

Mook is absolutely hammered by the end of the video.... Much like I currently am, being that its 4:30am and 12 beers later here. BUCKETS!!!! LOL

Keep that trans and axles for a big block corvair! 😊

My boat lost one on the lake last summer, bout sank the damn thing before we realized it, got that fixed, damned bellows hose popped. ThT sucked worst than freeze plug. Great vid you two, can't get enough!!!

Been watching this channel since Covid started and it keeps getting better .

Best video from Junkyard Digs. There IS hope for the next generation. Cheers...

That was really a fun episode! I’ve always loved those old jet boats!!

You can definitely reuse old head bolts. Worked at an engine shop where it's commonplace to use vintage headbolts. Modern aluminum headbolts are the ones that stretch worse..

In this episode, Kevin sends a batsignal which draws the attention of Mike Finnegan with the utterance of the words "jetboat" and "big block Olds".......

im imagining free bird playing after they fix it and have fun with it

Who else feels sorry for the Tiara? The truck/boat combo is perfect though.

What a great revival!!! What a blast you're having at the End!! Job well done!!

Great video and really fun to watch now with all the sand in that motor and being as old as it is you will probably need a new impeller that will probably give you a lot more speed.

Dude!!!! That camper was awesome!!!! You're lucky we got to see Angus run. 😂

Fantastic episode. Makes me wanna find an old California jet boat now. Lol. Would love to watch you guys take a buffer to that boat in a future episode to see the gelcoat pop once again!

I was laughing so hard when you said “Sasquatch continual, alright let’s get this sum bitch outta here” and then it cut to an ad. It was so chaotic

Kev looks like he is tired and i love the fact it looks like he had a few canned wobbles

kev when u said give her the shit followed by anguses uneasy "Ok" i bout died laughing that was funny i love this channel youve taught me more about old cars then i could have ever dreamed of as a kid. long live junk yard digs you guys are awesome.

I got hair on my chest just watching this video.

Awesome video I enjoyed watching it with my dad. I hope Scott sees the video of the boat running across the lake.

It’s like Kevin reads our minds and knows exactly what would make the best content!

A new impeller would probably add a few MPH but would probably double the cost of the boat as well. Great video! I want a jet boat and buckets now. :(

Sweet Vintage Jet boat! it sounds sick & FAST!

Great content, really enjoyed the journey! First time I have seen a boat that wasn’t a money pit.

That camper looked amazing. It was awesome.

I had a 1976 19' NorCal with a big block 455. Even after heads and a Demon carb it was still a giant turd. It sure looked and sounded the part tho.

Nice boat now. I wish we lived close to water like ya'lls. Good job gentlemen.

Probably one of my favorite videos on the channel since I can see what’s happening with the engine a little better

Awesome Angus is going into the shake business his 1st flavor 10w30 vanilla 😋. Nice side hustle and for once Kevin and Mook get away from brakes

Any updates on the corn?

6:45 he is doing that in sandals!! My wife likes my toes too much to chance losing one that way! Lol

Notification Squad!! You guys always make my day when you upload. This video will definitely be interesting probably with a bunch of calamity and shenanigans as usual.

Kevin I love watching all of your videos and seeing you interact with your friends. I’m born and raised in Iowa so I love seeing all the Iowa businesses succeed.

I wonder if Scott (I believe) would like to get his grandpa’s boat back?Hopefully you let him know that you got it running again.

I think you guys trying to help put old vehicles back on the road or water is great! My family has so many cars that need to be restored to run again but my parents are elderly and I have nerve damage making it hard to get it all done plus i am inexperienced. Some day I will eventually get all of the cars back on the road but it will take me years. Keep up the good work guys!

First of all big fan of you guys! Second this is probably my favorite setup for a jetboat other than it being a flat bottom. A few things. Most 455 olds jetboats came with marine holleys. That's probably a conversion from a 350 olds which is fun in it's own way. If it's a J berkeley Pump it's a big block originally (from memory). I see a couple issues with this boat still. You NEED a skeg on the back for a couple reasons. One is low speed handling but the second is really key. When he opened the secondaries it sounded and looked lean. Non marine holleys lack a surge plate which mainly works when you let off the gas going from wot to idle. A lot of times it's because you hit chop. Without a surge plate stalling becomes an issue at times. A skeg will help if you lose power. Without power your steering is awful. Think of how it wanders at idle and is easy to oversteer even then. A skeg helps if it stalls regardless of the issue. Not a lot but it can save your life tbh. It might be fuel pump causing what seemed to be a leanness when he got on it or just the camera shaking. Regardless DUMP that velocity stack. That was a common attempt to fix stalls from running non marine carbs and it didnt work anyways. Olds 455 motors and this one appears out of a passenger car maybe mid 70's are torque monsters. Wrapping 5200 stock should be easy for any of them and even the pre smog motors were still torque monsters. The velocity stack is kind of a chevy thing imo. The other big difference with a marine carb is the fuel overflows dump down the throat. Not straight up. Most states the police that know their crap will ticket you for a non marine carb. A cheap fix is a spark arrestor intake. One of those old wire mesh things. A lot of states those are ok instead of the marine carb or USED to be. They sound bad ass also. IF you have the small jet pump it' wont be any slower as the pump is holding the boat back.anyways. You lose maybe 5 horse or none. It's a marine boat so dust/dirt is a non issue anyways. If you punch it from idle in deep water and hit max rpm you most probably have the small pump. Just an old hill billy who ran lots of these. Water in the oil is a chronic for 455 olds driven boats for some reason. The heads run a lot hotter than they should imo even running lake water and people run the dog crap out of them because they stay together forever at 5200-5500 or so rpm. 10 minutes flat out? Yeah they will do it without complaining although you might need to deck the heads after a season. Hope this helps and throw that dang velo stack out and steal a surge plate and the overflow tubes from a junked out marine carb and enjoy!

Been looking forward to this video since the first photos on IG! Warning Flatland Fools on the water!

Awesome boat! My dad has a beautiful 19 foot DayCruiser of a similar vintage (1980 model) he bought new in early 1980. 350 Chevy with a mild cam and an edelbrock carb that allows it to run on 87 octane (with the factory carb it would only tun good on premium), mercury outdrive. Its a lot of fun. I was talking to my pops about this boat and he had a suggestion: bigger oil pan with a HD oil pump and modified pickup. These Olds 455s were infamous back in the day for being oil starved in marine applications because being in a boat theyre always on an angle and these Olds big blocks HATE that and will blow up in short order if the oiling system is unmodified.

I couldn’t stop grinning over the guy on the phones THICK Wisconsin accent. I love it. And love Wisc.

This is one of the most American videos on KZfaq n that Kevin has done you got 2 guys working on a vintage jet boat getting it back on the water acholic beverages a bald eagle n the ruthless roofer's lol GOD BLESS AMERICA!!!!

Good torque wrench info. You made TIs everywhere happy

Glad you got the Olds 455 out of the RV, it sounded like a good engine that needed just a bit of help. I'd LLP OP the heads and dog the cylinders & valves to keep it from rusting up.

Way to go! That new Holley really woke it up.

I had skipped this video for a while because I didn't realize it was JYD. I mean, a boat? Really cool, love it.

you KNOW Cleetus will buy that thing in a heartbeat from you guys!!!!

Learning curve in jet boating lol short lightweight heavy rear n lots of onions she skims really good great job sealing and reviving the ol boat like enjoy loved it👌😎

Angus is so cool ! I just Love him.

Thank you 👍 really enjoyed this project