Started at 88hp, finished at 522hp; has to be the biggest improvement from stock EVER !!

Has to be the coolest engine power episode ever, thanks

This was a great episode, you built up an engine the average person can afford.

This is the best episode of Engine Power ever. PLEASE MORE 300 content. Push the boundaries of it!!! Sleeves and head, etc. More boost.

One of the best motors Ford ever produced. They seemed to take abuse and still run forever!

This was more satisfying and way more fun then almost everything else I've seen from this show. I really want to see them start making power on all sorts of different, underdog engines.

Now this is cool. The 300 is entirely overlooked. It would be nice to see more projects with it.

One of the greatest engines of all time. Awesome seeing it get some love.

Being a huge I6 Ford fan, this episode gave me goosebumps. Outstanding job.

I've taken 2 of these apart about 4 times each now, and yes- These will run 70 mph on the highway with a half ton of sand in the bed, with 2 cracked pistons, all rings seized, and not 2 squirts of oil. Then I re-re-built it with 5 new pistons and all new rings, bearings, and a HO oil pump. Absolutely love turning the key on my '85 F-150. Runs smooth as a sewing machine, even the air conditioning holds a charge and works. It may never go fast, but I can pull a stump at idle and 100% guaranteed to take me anywhere I need to be.

I want this so bad. It’s the ultimate crawl around and tug truck motor. Even the NA motor is good with a manual and 4wd. It pulls way more than you would think quietly.

One of the greatest engines ever.. truly stands the test of time.. seeing it respond so well to forced induction makes me giggle like a fricken maniac!

It's a 300ci. One of the absolute best engines ever.

Yes most epic engine power episode ever that 300 is stout af.

The 300 is just one of those engines that everyone loves and has a respect for. Never met any gearhead who didn't like the 300. I grew up with several full size Broncos in the family, what I wouldn't give for a decent example with a 300 and manual everything behind it.

Gee thanks guys. My 87 f150 300 4x4 B.W. 4sp stick short bed I've had for 20 years honked twice while watching this video. My other is a 93 f350 7.3 4dr 4x4 auto and it deserves a turbo first. Both best motors ford ever put in a truck. My grandkids will drive these trucks. Both have pulled unbelievable loads. Neither are fast but are unstoppable. My friend had one in a delivery van and ran it for months with 5-10 lbs oil pressure.

I'd actually like to see this shoved into some old sleeper grandma Ford. Maybe an old 1979 Fairmont.

I've got to thank PowerNation for listening to their viewers and making this episode possible! 👍

I wish Ford would make this engine in this configuration. Ive got a 3.5 ecoboost and i love it. I can’t imagine this thing under my hood! Love the inline engines. Naturally balanced.

It's fun, seeing someone finally giving the "Big Six" the recognition it deserves! Good job, guys! I had a 1982 Ford Econoline van, with this engine in it, and I agree: This is the best inline six cylinder engine on the planet. I gained a lot of top end torque, by merely installing a bigger exhaust and down-pipe on the stock exhaust manifold, paired with the factory intake and mono-jet carburetor.(Identical to what was on your engine when you got it) I had the 4-speed overdrive transmission, which was created by changing the 3rd gear ratio to create the overdrive. That meant, the transmission acted like it was a 5-speed transmission, missing 3rd. With the huge RPM gap between 2nd and 3rd, it would "run out of breath" in second, before I could get the RPM high enough, to be in its torque curve in 3rd. The big exhaust solved that, by giving it enough torque band, to cover that spread. I was able to use it to pull a travel trailer.

Seeing that you started with 88HP, This engine is now putting out over 6 times that. Now we know why they last so long in stock form. I am putting one of these in my speedster build. I am starting out stock and then after it is on the road, I am building a monster 300 for it. It is called Project Boat Tail. Thank you for doing the R&D for me guys.

I was expecting to see Richard Holdener hiding behind a tool cart giggling to himself.

WOW!! Those are some pretty kick-ass numbers for a straight 6. Hope it inspires some folks to think about these awesome engines for their project.

I have watched this series three times now since it first came out. I have honestly been bored with the same old builds for a long time now, but this is a reason to dream, plan, save and scheme. Even if you nock 150 horses off you still have reliable fun that ain’t the same as what everyone else runs. Love It!

A build list for the final NA with 287ish horsepower would be pretty sweet. Sounds like a fantastic daily driver F150 engine.

Pat: Frankie:

I've always wondered what this engine could do if pushed to its limit. You guys made my day.

My concern is always longevity. I’d be interested in NA upgrades at the 250-300hp level that still preserved the reliability the 300 is known for.

Ford 300 is one of the best engines ever made. I drove one for two years, doing flooring work, overloaded as hell, and had 488k miles on the odometer. Had close to 550k, when trans literally fell out, van had some serious cancer. What hurts the 300 so much is that 60's cylinder head. I'd love to see a modern free valve head made for the 300, and see how much it wakes up.

This has to be the most interesting engine build series on all of youtube. Well done!

So, cool to see!! I own a 76" F-100. With the 300- 6 , 3 on the tree. Been the most dependable vehicle I have ever owned. Thanks for the video!

Really cool seeing this. Gives me some motivation on my Dads old 96’. Spent a bunch of time/money putting in a reman long block only to have head gasket/coolant loss issues. Thanks for the motivation fellas!

*We've been awaiting.This is more fun that the 'Coyote' build. WTG Fellas.*

Guys, this is probably one of my favorite episodes, and I am not even a Ford guy! Awesome! I think our old wrecked 78 F250 with the 300 6 just stirred from the grave down on the farm!

We had to service a turbo 300 back in the 1980's. It was being used as an water pump drive for a irrigation well and ran on natural gas. The thing was a beast and pumped many GPM. The farmer called us in as the pump had quit. When we arrived the engine was missing. Seems the blow off valve stuck closed and it bootstrapped itself to oblivion. It was a very cool set up and had worked well for years. We installed a small cam small block Ford in its place.

Thank you for finally giving the love this motor deserves. Best engine by far.

That's an absolute fantastic motor . I seen one of those motors go 36000 miles without an oil change. And when Ford put fuel injection on it that really woke it up.

Sure brings back memories. Built one 20 years ago with the same intake/header combo, Holley 390 4bbl, Comp 260H cam, mild porting on the stock head, and a .030 9:1 rebuild. 242Hp and 323Tq

So glad I found POWERNATION! Learning a lot, while watching entertaining content. Can't beat it.

Learned so much about the anatomy of a turbo system from this - on top of the epic result from the I-6!

This has been more interesting to me than most of the V8 builds! I thoroughly enjoyed watching Pat's expressions at the dyno! Great job guys! Thank you!!!

More.of.this. This has that "buddies hanging out at the garage" feel to it. Every single racer that has grown up around the "300 that doesn't break" wondered what it would take to break one. Apparently, if you keep it stoich and don't exceed 1 bar she's a screamer!! Barra what?

Gentlemen, that's what I'm talking about !!! I had a 4.9L I-6 in a 1990 F150. It was such a dream to work on, with so much room under the hood. Seeing this video make me wish I still had it.

Thank you to the builders producers and crew for making this happen 🙏

Pat's look of trepidation made me watch the last pull thru slits in my fingers but, I'm overwhelmed at the results. What a great engine!

This is what I’ve been waiting for.

Best project I've seen in recent memory. I hadn't heard of this show. Awesome build.

Wow! Its not just the engine you start with. Its not just the power you end with. Its the workmanship, craftsmanship, superb equipment, superb materials, superb facilities. Its all of it. What a great window into your business.

This would be such a mean setup in a classic bullnose build! I’d love to see it in a lowered 2wd street truck or a 4wd mudder, that would be so cool! This has definitely opened my eyes to the potential of the Ford 300

Great job Pat and Frankie, my favorite Engine Power build to date! Everyone loves and has a good story about a 300-6 they had.

This is an awesome build, makes me think back almost 40 years when I had a 1967 Chevy van with a 292 Six. Wish I had kept that van, all the in line sixes were such great engines, would love to do this kind of a mod to boost the power, crazy Dyno numbers.

My favorite episode ever! I had to watch it again! Now I need to build my own!

Glad to see Pat stepping out of his NA comfort zone!

Pat wanted more boost like he wanted more pens in his pocket. Great episode! 💙

I love the straight 6's, currently in love with the 98' Volvo s90 but also had an older late 80's Mercedes Benz 3.2 that just rocked but the 300 started it all in a 70's ford 4x4 tow truck... glad to see it

There's a reason these are legendary, if you overbuild everything and ask it to make 100HP all day long it will arguably last virtually forever with decent maintenance. If I wanted to run something like this in a daily driver, I'd go for the 250 HP + 330 FT/LB NA config, it'd still last almost forever and be a damn good motor for a truck application. It was a blast to watch you guys push this to over 500 HP, but I don't think I'd want to run it like that for very long. :) Great series guys, it was really cool to see the 300 inline 6 get some love!

There’s only one word: WOW!!!! Unbelievable that that little engine makes 522 hp and almost 600 pound feet of torgue!!!! WOW!!!! Greetz from the Netherlands , ramon

Just like Pat says, gotta love those old 300 sixes. I fondly remember my 84 ford. Almost 300K miles and never cracked open the engine. Never added a single drop of oil between changes.

That's sweet. I had one with a 4 speed for my first truck. Took a 12 inch thick maple tree clean off and almost bent truck in half. Fired right up without anything turning. I'm a Chevy guy but that old 300 holds dear to my heart.

Hands down best episode yet. I, and every friend I have, have always had a love for the old 300 motors. With the Barra being not offered stateside, we all wondered what an old 300 would do. I hope to see many many others follow your footsteps and see a slowstang powered by one on the various street/strip racing social media accounts soon. I had a grin on my face as soon as you showed that rusty hunk of iron.

Amazing engine and a lot of people do cool stuff. I've read on the forums of heavy haulers that people put on a cummins turbo then take the cam and advance it one or two teeth to move the power band lower in the rpm range and make mountains of torque. I rebuilt a 300 that the cylinders were so worn in the center that the glaze breaker stone wasn't touching and the bearings were only showing the copper. New bearings and rings and she still ran amazing.

Over the course of him joining Pat, I definitely have enjoyed how Frankie and Pat developed a solid working relationship over the course of Power Nation. Pat even said "I think we need more boost"...especially knowing how Pat is a NA engine builder. Outstanding work gentlemen and keep building.

Have to say I love these type of builds. So cool to make big power with other engines than a LS.

Been waiting patiently for Richard to do one of these. He's mentioned it a time or two. Y'all beat him to it and knocked it out of the park! Those numbers were Amazing and not even at a full atmosphere!

I've always been a 302 guy.. but damn this engine build has me rethinking my whole truck/car life

This is awesome. I have a 1988 Quigley 4x4 van with 300ci. Just went searching on things to spice it up a little, this whole video series is great and they are impressive numbers!!

*"OK I am worried about the head gasket, I am worried about splitting a cylinder head...give it another 2 lbs, LMAOROTF!"*

I have been waiting for this episode for months, I'm so glad it's finally here!

The kid has my respect. He knows his stuff!

This was probably the most interesting Dyno pull I have seen in quite awhile! I love the engine (I used to have the 240) and would NEVER have expected it could produce that much power safely. Thanks for a great video and now I guess I have to subscribe because you guys seem like you like to do crazy things and i LOVE IT!!

Always wanted to build one of these, not sure how common it is but these guys proved it was a worthy engine build 👍

Love the underdog engine stuff. Keep that stuff up! Throw in more engines that don't get enough love!

Honestly this is the best episode ever!! Imagine this in my old bronco.. I'd rock it for sure!

The 300 is my favorite engine, but I never considered it for a serious power plant. I might have to re-think that. Another thing: I didn't know about the split manifolds. That would allow for a true dual exhaust. I like it!

You guys fab the most beautiful temp setups! Unreal gains on that old beast!

Wicked to see. I take care of around 40 of these that run oilfield pump jacks. Would be wicked to see this turning a jack 😂

In the early 1990's, we used to sell this motor in F-150's as the million mile motor because they never broke down nor wore out in a stock configuration.

Love the Ford 300 turbo! Well thought out build. Very, very nice.

Drove a 79 F100 with 300 for 350,000 miles and really enjoyed this build. Wish i had it back to 'Build It'. Maybe a future build somewhere in my life. Great Job Guys! Great Job!

Been waiting for this all summer!! Finally comes out on my last day of summer, sweet!!

Awesome results!! Would love to see a centrifugal supercharger on it next and compare the Dyno curves between the turbo and the supercharger!

Now THIS is the perfect motor for PD supercharger. Cool vid and you guys clearly have a great job.

That's a pretty smooth power delivery. Almost linear. Damn what a nice build!!

My jam dropped when you revealed the stats on the last run! You guys have the best job in the world. Playing in the world of big boy toys.

By far my favorite series so far, I’d love to see this in something soon

There are reason(s) those 300 6's lasted forever, and you guys just nailed what they were. My two favourite underrated engines are the Chevrolet 4.3 V6 & this glorious Ford 300. You fella's did them both super justice. I've owned both, and loved both for different reasons. Thanks a bunch.

Very love it...many things that i can learn from this channel...thank you POWERNATION..😘

That was incredible! This is one of my favorite engines, and I have really enjoyed watching you guys make it even better. I would have been happy with 300HP!

I LOVE this! 300’s are awesome and always wondered what one would do turbo’d. Thanks guys!

I keep coming back to watch this over and over….

That looked fun as hell. From the building to the testing. Great job guys!

This episode was so much fun to watch, I didn’t even know I needed to see this.

That was amazing. I’ve got a straight 6 in my old pickup and my eyes have been opened.

It was summer 1977 .... An apprentice working for the Santa Fe railroad signal department had just bought a F-150 inline 6 Ford 300 cubic inch and it was a short wheel base all wheel drive getting about 18 miles per gallon with a definite misfire driving from Phoenix Arizona up Black canyon freeway to Flagstaff. As I was riding along to check this rig out it was used and I told him let's definitely get a set of plug wires when we get to Flagstaff. I popped the plug wires on there for him and the next few days we were getting 20 plus miles per gallon on the same highway and we're cruising 60/65 miles an hour. Like I said it's used it's not beat up kind of a dull turquoise green color. Can't remember how many miles it had on it it was pretty clean under the hood no oil leaks. Suspension seam tight no rattles good rebound compression dampening. The wheels were just stocked with hubcaps probably 7 and 1/2 in wide with g something maybe g78 radial tires that you would find on a station wagon. So I said hell let's find out what she does and hit they are royals and see what it does in the sand. And in loose white dry sand like sugar it held its own. Even back then six cylinders were gaining popularity. Just a few years before my 69 Nova won its class and third runner up in super stock at the Indy Nationals ... I can't remember what the guy gave for the truck used but it wasn't unusual price either way but to me it looked like a blank canvas. Today you can still get performance parts from Clifford research places like that I haven't checked but I'm sure you can probably find a lot of stuff at summit racing. It all depends on how you want to set it up to do whatever you want to do. Nothing will replace the sound of a sweet little V8 sitting in the same truck.. but in line 6 have a lot of advantages as you can see in this video. Have a sportsman was just setting up the truck to go hunting with or fishing or whatever and outdoors woods type truck to beat around in with the boy had there on the railroad I believe would be perfect. For one thing if you're out there and places like Arizona and your hundreds of miles from bum f*** Egypt and you got to change a belt or a hose or maybe a bunch of hole in the oil pan you need to get in there and do it now cuz nobody's going to be around for years. You set yourself up a tool kit for all kinds of emergencies pack it away you got a mechanical ability. That little F-150 Ford is like a Swiss army knife you can turn it to whatever horsepower you want and torque to do whatever job you want to have. Pull your boat to the lake. What street tires go play with people on the drag strip. Polish it up put some bling under the hood take it to a car show.. and for people who hate cluttered up dog houses with huge V8 you got lots of room on that inline six do all kinds of anything without busting your knuckles. For anyone into Motorsports inline 6 f150 is your everyday driver it's your bulldog it's your tractor. It's going to drag home you're blowed up race car. It's your family beater grocery getter. Tune it for performance.. make it comfortable power steering power brakes air conditioning tricked out stereo custom cab. Compared to cowboy Cadillacs. It's your mustang off-road sports sedan

by far the best episode in my book. the excitement yall keep getting was classic. Im not just saying that cuz im a inline 6 guy.

Ford has made some great engines over the years and this is one of them!

Boy oh boy I’ve been waiting for this what an amazing power gain!!! Great job power nation

I had a 300 6 in a Bronco. It wasn’t fast but it was unstoppable. It’s one flaw was a sticking float valve. I still kidded about fixing it with a hammer. You guys have the most fun job ever, great video.

What an awesome series this has been, I would love to see more like this. Great work guys!

Definitely the best episode yet. Way more interesting, working with something oddball. Keep it up!