Will It Run??? 1973 Mach 1 Mustang - First Start In Years!

[@zAvAvAz]

Mam and sir, may i am inform you that you have a CLEVELAND engine! That is a boss of an engine right there. You do well to keep that car and everything on it like it was factory. It could be a gold mine one day. Oh wait, 1973 mach 1 mustang, it is a goldmine! Congratulations on your find. Happy motoring. Cragar daisy wheels up front with slot mags on the rear, really cool car.

[@FlatlineGarage]

Thank you very much. We are super excited to have it. I don’t think we will venture too far from an original style restoration on this one. I am looking forward to the finished product. Thanks for your excitement, it’s contagious!

[@SonjaGregory-e3z]

Julie’s laugh is very contagious!! Loved the video!!♥️

[@FlatlineGarage]

Isn't it though? She is a bit self conscious about it, but it is one of the many things I love about her.

[@johnsmith-nk2zv]

Love the car and cats❤

[@matthew4cats]

The cat is the supervisor on all cars

[@FlatlineGarage]

Some days I think Julie loves her animals more than she loves me. I am just glad it was her cat that was supervising and not one of her goats!

[@TheRSTD1]

🍻 to the dads who somehow kept us alive into our 40s and beyond!!

[@coyotehater]

Some people hate on the 71-73 Ponies, but I’ve loved the 73 Mustang ever since I saw Gone in 60 Seconds. I’m glad the algorithm chose to recommend this video. You’ve earned a subscriber, can’t wait to see where this goes. Creating content is hard, I tried making a video of installing a LS in my 67 C10 & the video want even worth editing. My hats off to the people that can. Y’all make it look easy & I can see your channel growing. Best of luck to y’all!

[@FlatlineGarage]

Yeah, Eleanor was a pretty sweet ride! I was born and raise a Chevy guy, but it seems like all I have any more are Fords. I am up for working on anything that is available and a decent deal. I appreciate you watching our videos. I have wanted to make videos for a long time, but have been nervous actually doing it. Julie has been encouraging me to go for it for a while now and I am glad we have. We have made some really bad stuff. Like you said, we have recorded some stuff that wasn't even worth editing. We still have a long way to go, but with practice I feel like the videos are getting better.

[@jeffpoulson4608]

Awesome video! Can’t wait to see it goin down the road!

[@FlatlineGarage]

Thanks Jeff. I am ready to see Julie laying some rubber down in our final video!

[@brianpentecostaldeplorable9841]

Are you still poosting videos of your projects ? I was happy to find your video of you and your wife working on the Stang together. Its hard to find a wholesome channel like yours nowadays. Oh, and you are an adorable family !

[@rdealy94550]

Brave man, teaching woman. Dangerous effort.

[@gregt2614]

Good job producing this! I enjoyed you straight forward approach and walking through the steps...and your sense of humor!

[@FlatlineGarage]

Thanks Greg, that means a lot to us. Julie and I both appreciate you taking the time to watch.

[@MandSCattle1]

Remember father knows best!! Thank you for using the jack stands!!

[@FlatlineGarage]

For sure! Those jack stands are nicer than any others I have ever had. We are happy to have them.

[@metalmangle]

Other than it needing a fuel filter before and after the fuel pump, you guys killed it! Very detailed and methodical. And I'm looking forward to seeing the Cougar Video.

[@FlatlineGarage]

Thanks for the encouragement! I am excited about the Cougar too. Hopefully we can start putting out some steady content this fall on both cars. We appreciate you watching.

[@JonnyHolms]

What an awesome car 🚗, good luck with everything and i just subscribed so i will be looking forward to more on this ride....

[@FlatlineGarage]

Thanks man, I appreciate that. We are way past due for putting out another video, so hopefully we can get one out soon. Thanks for watching.

[@jonrichardson-ih8vq]

really like your vid, shows what a weekend garage couple can do, and that mustang find! good stuff! did Not see you change out oil and filter, so assuming you did it, maybe with some experience you will be able to dump trans fluid and filter and refill/change, plus check your linkage/shifter make sure is operating properly and if all else fails, no movement, rent a uhaul trailer and haul it back home and work on it from there, keep us informed of what goes on with it as well as you all.

[@bossesp351xe8]

Good entertaining and informative video. I am subscribing to your channel to support and feed your cats. Yeah car parts are expensive and I want to see you finish this cool Mustang and these other cars waiting for some love. Keep posting content.

[@maniakzmayoral3992]

Cool mustang

[@FlatlineGarage]

Thanks! We are super excited to see how she turns out. Thanks for watching!

[@ferdinand9103]

Nice looking project there, look foreward to keeping an eye on this channel now considering I love this body style of mustang. I see a cleaning/detailing episode could be in your near future? haha

[@FlatlineGarage]

For sure, deep cleaning is coming up next. That thing is disgusting inside and out.

[@jdw6769]

Also a good idea to disconnect the fuel line at the pump.so you don't pull all that bad gas up the the carb...good video keep it up and good luck 👍

[@FlatlineGarage]

Yeah, that is a great point! It would be a bad day to mess up a carb by running a bunch of trash up into it. Thanks for watching!

[@SlyDellian]

Nice find and great video! I just subscribed. That transmission might just need new fluid and a filter. Fingers crossed!

[@FlatlineGarage]

Thanks! I have had several people suggest to change the fluid and filter. I will give that a try. Hopefully it fixes her right up. Thanks for watching and subscribing!

[@fraserobrien3828]

love your cats thay are great and friendly wow .

[@FlatlineGarage]

Those cats are Julie's babies for sure. The shop location is about a mile down the road from our house, so every evening she goes and locks the cats up in the shop so the coyotes or owls won't get them and every morning she lets them out to roam. They are pretty spoiled, be we love em!

[@mikewallace958]

Love the 73s I used to have a gold 73 Mach 1

[@FlatlineGarage]

I just googled up a gold one, and man that color scheme sure is a good looking combination. I told Julie I would leave it up to her on what color she wants to paint it. I will definitely show her a picture of the gold option to consider.

[@mikewallace958]

@FlatlineGarage beautiful the raised part of the hood was black and all the stripes was black beautiful car

[@FlatlineGarage]

We want to take a shot at painting this one ourselves, and I would love to paint some black stripes on it, but I haven't got a clue where to start with laying them out. I have a lot of learning to do between now when she is ready to paint.

[@markc2437]

My bro had same car but 71 Mach 1 red w Cleveland 4 spd best combo. That moto is an animal! Gd luck w it! Nice family! Cute child! Are yall in Midwest? We're in New England!

[@georgewest9998]

The cats can't wait. so funny.

[@FlatlineGarage]

Yeah, those cats were just begging for an opportunity to go rat hunting inside the car. Thanks for watching.

[@JordanHudson-ug6js]

Troubleshooting, informative, and successful.

[@FlatlineGarage]

Thanks Jordan. I am not sure how successful it was from the transmission's perspective, but that will give us a reason to rebuild the transmission in a future episode.

[@JimsFastbackGarage]

I just subbed, I think I might have to get my wife in on the next startup.😊

[@FlatlineGarage]

I just checked out your channel and had to subscribe as soon as I saw the 68 coupe to fastback transition that you are working on. It sounds mean! What engine does it have? I totally recommend teaming up with your wife, we have had a lot of fun working together on this one.

[@JimsFastbackGarage]

@FlatlineGarage I run a 1970 2V 2 bolt Cleveland block with Australian 302 2V quench chamber heads. 2.190 intake valves and 1.710 exhaust. It's 11to1 compression, and I run 93 octane fuel in it.

[@FlatlineGarage]

Yeah, that is super cool. Hopefully we cross paths one of these days on a power tour or something, cause I would love to see it in person.

[@JimsFastbackGarage]

@FlatlineGarage Have you heard of NoNameNationals? It's an AHRA event for content creators with at least 500 subscribers. I will be there with the Fastback this September 19-21 at Sikeston, MO.

[@FlatlineGarage]

I haven't heard of that, but will check it out. We don't have 500 subscribers yet, but should reach that goal soon. Even if we don't have the car road worthy by then it would be fun to go and check out everyone's vehicles. Thanks for mentioning it.

[@DrivingSander1970]

Liked and subscribed! 😁

[@FlatlineGarage]

Thanks for watching, liking, and subscribing, we really do appreciate it.

[@daviscarson5181]

would love to see more content

[@FlatlineGarage]

Thanks for watching. I hope to start putting out steady content on the car and some other projects we have starting in September. This summer has been super busy for us and we haven't done a thing to the car since the last video.

[@allstylinone5122]

One spark or backfire through the carb is gonna burn it to the ground! Hope ya have a serious fire extinguisher close by! 😮

[@FlatlineGarage]

Man, that would be a bad way to end the video!

[@jwfinley7808]

I had a 1971 MACH 1. 351 Clevland. Dule Point Mallory. Not quick but very Fast!!

[@FlatlineGarage]

I bet your mustang was a lot of fun to drive. I have always heard of the infamous 351 Cleveland, but this is the first one I have ever been around. I can't wait until she is road worthy so we can see how fast this one is!

[@jwfinley7808]

@@FlatlineGarage I did 150 MPH the car is built for 5 people. I had 6 people. in Death Valley. in the 80s!!

[@jwfinley7808]

@@FlatlineGarage it was Red. sat low with 70s in the front 60 in the back. you sat low with a dash like a jet. I tore it up I ruined it!! I was young!

[@FlatlineGarage]

That's awesome! I have travelled that Vegas to Reno stretch a few times and I can see where you could open her up on those long straight stretches, but 150 mph would scare the shorts off of me. It sounds like a really cool car. Julie is really drawn toward the red and black combo, so I have a feeling that is where we are headed with this one.

[@lw2253]

So did Tick Turd retain any of that mechanic lesson? Love these videos!!

[@FlatlineGarage]

Of course she did! She is a mechanical genius now!

[@daviscarson5181]

currently working on fixing my 73 mustang

[@FlatlineGarage]

Are you filming any content on your build? I would love to watch it and follow along if you are!

[@scottmears7490]

Love the metal music

[@FlatlineGarage]

Thanks! I was pretty happy to find that track on the KZbin playlist. I appreciate you watching and hope to get more content out soon.

[@ralphbabusci2666]

Love you guys, great job on getting her going! Make sure you wear masks, rat and mice poop is bad for your lungs.

[@FlatlineGarage]

Thanks! Since we were outdoors it never even entered our minds that breathing that nasty stuff could be bad, but I can totally see it now. Thank you for pointing that out. We will for sure be wearing masks when it comes time to tear out that rat infested interior.

[@chrisarmstrong3200]

to use the spark tester one end goes in the wire and the other end plugs onto the plug ,then you let go before you hit the button this way wife lives everyone is happy

[@FlatlineGarage]

Man, we tried that, but we couldn’t get the tester to fit on a spark plug because the boot on the tester is a 90 degree boot and the exhaust manifolds restrict that area so much that we needed a straight boot to get back to the plug instead of the 90. I honestly didn’t realize she was touching the metal connection when I hit the button, but it sure made for some good video footage!

[@chrisarmstrong3200]

next time go to the distributor side of the wire and try it there@@FlatlineGarage

[@lemoncurry351]

Im watching this out of a dream to have my own 73 mustang and I have to ask how do find these gems?? Are they all stashed away in barns?

[@wiremupaki3793]

Be awesome to see finish off

[@FlatlineGarage]

Yeah, I am looking forward to the end result. I am sure it will take us much longer than we would like it to, but I can't wait to see how she turns out.

[@fraserobrien3828]

thanks great job man,

[@FlatlineGarage]

I appreciate that! Thanks for watching.

[@chrisarmstrong3200]

it is a good sign you know the pipe wrench trick

[@FlatlineGarage]

Yeah, you never know when a good old pipe wrench might come in handy.

[@chrisarmstrong3200]

yes a spanner wrench of any type is worth its weight in gold @@FlatlineGarage

[@Rusty_Dents]

I subscribed. In the middle of a 71 Mach1 build myself. Will be taking it on Power Tour in June. I'm about 20 minutes into your video. Give me a follow and ill be glad to answer any questions i can. Built my first Mach1 in 1983. Looking forward to more videos

[@FlatlineGarage]

I'm all subbed up on your channel. I'm not gonna lie, I had to listen to some of your music before I ever clicked on the car videos. I played in a bluegrass band back in my teenage years, so your music excites me as much as your pony does! Your Mach 1 is coming along nicely too, I can't wait to hear her run. I would love to go on the Hot Rod Power Tour one of these years. Maybe we will have our Mustang ready to go by next June.

[@Rusty_Dents]

@@FlatlineGarage I love some BG music. Not much down here in south Alabama. Te band I played with for years is out of north GA, around the Blue Ridge area. I had one more question for you. After you got it cranked, did you check the transmission fluid on the stick again? It sounded a lot like it was low on fluid. FMX or C6?

[@FlatlineGarage]

The door sticker says the car originally had a 302 with a C4 transmission. I am not sure if the transmission was swapped when the 351C was dropped in or if it will has a C4. I put all of the transmission fluid I had at the time in it and it was still low, so I do think most of our issues are fluid related. I am thinking this weekend I might make a video changing the transmission fluid and filter to see if that will fix her up.

[@Rusty_Dents]

@@FlatlineGarage before you change it, add to the full mark with it running. A lot of people will tell you not to change the fluid and filter on an old transmission, unless you know it's been serviced regularly. I would get it to idle below 1K RPM before you drop it in gear too. Revving it as high as you did may have done a lot of damage that could have been resolved with fluid. Good luck with it and holler if I can help

[@ritchiehill3442]

I don't know if that's a Cleveland or a modified 351

[@DaPenceman]

Or 400m

[@ritchiehill3442]

@@DaPenceman I know it's not a Cleveland has more rounded value cover's that's a it's a modified im not hating on it I've just had both engines they were both fine engines

[@FlatlineGarage]

It might be a 400m. I just assumed it was a Cleveland, but I think the thermostat for both the Cleveland and the Modified are in the block instead of the intake, so it could be either, judging off of that. I haven’t checked the casting numbers on the block, but I need to now, cause you have me curious about it.

[@DaPenceman]

I hope you guys have a garage to work in or atleast covered parking available

[@FlatlineGarage]

We do, but the shop is a disaster right now because I am building Julie a chicken coop inside of it. The chicken coop is almost done, so as soon as we can drag the chicken coop out we plan to put cars in there so we can start making some consistent videos.

[@Morris-d5m]

Nice car

[@FlatlineGarage]

Thanks, I appreciate that. We are pretty excited about it.

[@thomasputnam4491]

Are the brakes stuck on it please recheck the fluid with car running and warmed up your going to wreck the trans probably already have

[@FlatlineGarage]

It rolled on and off the trailer just fine, so I don’t think the brakes are stuck. We have had a lot of suggestions to change the transmission fluid and filter, so we may give that a shot before tearing it down for a rebuild.

[@thomasputnam4491]

Do you have the key on that moter sounds awful you can almost hear it knocking just turning over.and you need some starting fluid

[@FlatlineGarage]

The key was on the whole time, but we noticed after the first start that one of the spark plug wires wasn’t connected good, so it was only firing on 7 cylinders for part of the video.

[@evnldr]

Let's Go!!!!

[@FlatlineGarage]

Yeah Buddy!

[@devonorozco9576]

Hey guys did you guys ever fight out the key issue I have the same car I'm bringing back my self and I'm having key issues

[@FlatlineGarage]

That’s interesting that you are having the same issue with the same car. We haven’t figured it out yet, but haven’t had much time to look at it since we posted the last video. This summer has been super busy for us, so unfortunately we probably won’t get to pick up work on the car again until August. When we do I plan on videoing the whole process to post on KZbin, so when we figure out the key issue we will be sure to post it. Are you making any videos on your rebuild? If so, I would love to follow along.

[@thomasputnam4491]

The ignition box on the fender is probably bad it's a ford they go bad all the time

[@Moondog7974]

Looks like a 351 cleveland

[@FlatlineGarage]

Yeah! They advertised it as a 302 car when we bought it, so I was excited to see it had a 351C in it when we popped the hood.

[@user-yx2ip6cr9h]

Did you check the radiator?

[@FlatlineGarage]

I don't think we showed ourselves checking it in the video, but it does have water in it. That reminds me though, if we don't have the engined pulled by winter I need to make sure it has good antifreeze in it.

[@chrisarmstrong3200]

its compression,fuel and fire to make one run

[@monsterstereos1836]

Not a bad price at $4750. Has the title been sorted out?

[@roberthirshfield3571]

Yes that’s a 351 Cleveland

[@FlatlineGarage]

The auction company had it listed as a 302 car, so I didn't take a good look at the engine before I bid, I just took their word for it. I was happily surprised when I got it home and saw it had a 351C.

[@roberthirshfield3571]

@@FlatlineGarage I have a 71 351 Cleveland I rebuilt the engine an. The interior paints old but it runs like a rapped ape

[@riverdog8796]

Have you ran the VIN? Is that a 351?

[@FlatlineGarage]

The VIN shows that it was originally a 302 car, but someone has done an engine swap at some point to put a 351 Cleveland in it.

[@roberthirshfield3571]

If that’s the case get the numbers off the block you may have a 351 boss is the intake aluminum or steel

[@FlatlineGarage]

I will have to get the casting numbers off of the block and check it out, but unfortunately I don't think it is the Boss block. The heads have the 4V stamp on them but the intake is steel and the casting number on the intake shows it to be from a regular 351C.

[@thomasputnam4491]

You got a real valuable car there so restore it right ok

[@FlatlineGarage]

Thanks Thomas, we haven’t even started on her yet and are already looking forward to getting her finished. Thanks for your support!

[@DavidSomers-i5h]

Disconnect negative First and negative last, small post is positive

[@FlatlineGarage]

Thanks for reminding me. I always struggle to remember which one you are supposed to pull first.

[@thomasputnam4491]

But if the car has points it won't have the box on the fender

[@wildbenny11]

I own one of them car 40 yrs ago

[@FlatlineGarage]

Nice! What color was your car? We are still trying to figure out what color to paint this one when we get her all fixed up.

[@wildbenny11]

Baby blue

[@wildbenny11]

The inside was all black

[@FlatlineGarage]

Man, I bet that was a pretty color combo. Don't you hate the thought of letting them go? Back in my teenage years I had a 1967 Chevy truck and a 3rd Gen Camaro that I wish I had back.

[@wildbenny11]

Yea make me sick wish I still had it

[@matthew4cats]

The gas is so black it looks like oil, the old gas that i have taken out of stuff was orange gas that looked like Gatorade black gas must be super old

[@FlatlineGarage]

Yeah, that gas was nasty. I’m not really sure how long the car has been sitting, but it must have been sitting for along time. The grandson of the man who owned it told me they hauled it from Arizona to Oklahoma 10 or 12 years ago, but the license plate is from North Carolina. I’m not sure how long it was in Arizona before it came here. The tags on the plate are too faded to read the year it was last tagged. I really wish I knew more about the history of the car and all of its travels.

[@stevencooper399]

Are you still working on this build ?

[@FlatlineGarage]

This summer has been unusually busy for us. We have been on the road for work and family issues more than we have been home. We haven't touched the car since we filmed this video, but I hope to get going on it again soon, and look to have more content out in September.

[@stevencooper399]

Hope things start going better for you two .

[@mikedunlap4105]

check the starter

[@ericburns2421]

Hi and welcome to KZbin I would like to see more of your restoration and startup projects let's be friends sometime

[@FlatlineGarage]

Thanks Eric. We are past due for putting out another video, we just have too many irons in the first right now. Hopefully we can get more videos out soon.

[@Mr-er6fg]

Oil those hood hinges before you bend the hood and ruin it.

[@craigallums8220]

You and your girl makea great team

[@FlatlineGarage]

Yes Sir! Oiling the hood hinges was one of the first things we did. It would be a bad day to ruin a hood like that.

[@FlatlineGarage]

Thanks Craig! We sure have had fun finding a project that we can work on as a team.

[@ericdaniel92]

You Can Also See IMMEDIATELY That ENGINE Is DEFINITELY NOT A Little " 302 " ... But A " Medium Block " Cleveland Style 351 ... JUST By The Valve Covers Alone ... AND .. By Its WIDTH From Across The Intake Manifold And Valve Cover To Valve Cover Width. And ALSO , OBVIOUSLY ... WHere The Thermostat Housing / Inlet is Going.

[@sylvaingosselin1155]

i have 1970 mustang mack 1 with 351 c

[@thomasputnam4491]

If you don't unhook the wire from the coil to battery when the car ain't running you will burn the coil up

[@FlatlineGarage]

We have been unhooking the power to the coil to shut the car off, but I didn’t realize that leaving the power wire hooked up would burn up the coil. Thanks for the advice!

[@Bosco-knows-all]

If you use a ( portable ) pressure washer you can wet down the poo dust and avoid breathing it …

[@scottmears7490]

The cats the star

[@FlatlineGarage]

Those cats are spoiled for sure!

[@debhart4302]

Your brakes are basically locked down. Please idle the carb down, free up the brakes before you do ruin the transmission.

[@FlatlineGarage]

Yeah, we need to look into the brakes a bit more. It rolled off the trailer just fine, so I didn't think I had one locked up, but maybe we do. Good point on the idle speed to, I agree that we should adjust it down. Thanks for watching and giving us some feedback.

[@robertbdees9913]

Change out filter in transmission

[@FlatlineGarage]

I’m gonna give that a try. Several people have thought that might fix our problem. I hope it works. Thanks for the advice.

[@robertbdees9913]

Back in the late 1980's we used b&m trick shift if I remember right. On a transmission that would not move . Ran one bottle in transmission after letting it flush through trans . It worked really well. After about 20 miles it quit working . So we pulled out filter and replaced it. Trans was working like new. To bad motor chucked a rod around 6000 rpm. Good luck

[@FlatlineGarage]

That’s cool. I’ve never heard of trick shift, but it looks like it is still available today, so it must be good stuff.

[@robertmcfarland3323]

Hope you guys got money it's going to be expensive

[@FlatlineGarage]

I hear ya! Unfortunately we have much more passion than money, so I am hoping we can make some content of the cheaper end of things while we save up to tackle some of the more expensive work down the road.

[@Null-h6c]

Rpm is too high . If manuasl brake clutch . Not brake . Brake clutch , need adjusting

[@FlatlineGarage]

Yeah, I think you are right, I need to get the rpm adjusted down on it. She has an automatic in her instead of a manual. I am hoping it is just a fluid issue with the transmission, but it may need to be rebuilt.

[@AvengerGT40]

Un mach1 73 avec les srtipes du 72

[@christiancriss8861]

Tell the wife to take a seat, and her laugh is ridiculous!

[@Bosco-knows-all]

The 71-73 mustangs are longer and fatter the the 69-70… but no one can afford a 69-70 anymore so this it what normal budget people are stuck with..

[@thomasputnam4491]

Put more fluid in trans

[@steveklopfer4780]

Time and Money

[@Bosco-knows-all]

Kill the music, you dont need it

[@scottmears7490]

Wear goggles

[@FlatlineGarage]

Yeah, looking back on it now we should have had a little more protection against all of that rat matter we were dealing with.

[@Moondog7974]

Dude you were going to get your wife burned severely if you keep letting her pour gas down that carburetor. While you’re cranking it bad news buddy I’ve seen it before.

[@FlatlineGarage]

Man that wouldn’t have been good. She never would have let me live that down if that would have happened. Thanks for pointing that out, I will remember it in the future.