Love it!! Stoked to see the build

Sounds great Andy! Looking forward to more on this! 🏁

Exciting journey Andy. Looking forward to your updates, thanks

Great choice in the 347, I have a one in my 65. Good amount of power for these cars. Can’t wait to watch you through the process. Best of Luck

I'm excited...Looking forward to your new build. Roller cam, alluminum heads...Keep us posted!!

Sounds very exciting! Good luck, I'm sure you'll keep us posted and I hope you had a great Thanksgiving!

That's a great way to go. You'll never regret it. I have a 351W in my 65, and it has always fought with me. Maintenance is always a challenge due to the really close quarters.

Great video Andy (as usual)! I was hoping you were doing a 347 build :) Looking forward to the next video and thanks for putting out quality content!

Sounds like a plan. I also feel like when you go bigger displacement, not everything has to be radical in its approach. There's an objective cushion for reliability and performance. Well thought out Andy. Fun to watch!

Great choice andy 👍 I did a all forged bottom end 347 solid roller early this year and haven't regretted it. Best to find a roller block

I got my 347 stroker kit from Coast High Performance 15 years ago. The wrist pin in the oil ring problem was already solved way back then. The kit consisted of a new Crank. Forged Probe pistons and rods, rod and main bearings. I also bought a roller cam and lifters they recommended and a main cap girdle. They also recommended AFR 185 heads. They estimated 430 hp. It's been running like a scalded dog for 15 years with no problem.

Hey Andy! Troubling shoot leaks etc is an art. After you pulled the motor, you nailed the problem and traced that oil flow down the from the head gasket and down the pan rail back to the rear main seal area. Good patience and good job. Now, having sold my 85 gt hatchback with a built 347, I have to say I loved that build. Over 400 hp N/A, Fast and dependable. Great street motor. I now have the 67 Gt coopay with the monster built 460 in it. Would gladly go back to a small block for room and space and ease of working on a small block. So, all in all, great choice. Can't wait to see the progress steps of the build. Love and blessings to you and yours from Motown/Dearborn. Oh I forgot to say, my 347 was a hydraulic roller motor paired with a 5 speed T-5 and 3:73 gears. Holley 650 Carb.

I've been watching your videos for a while now and you have helped me do the front disc brake conversion and the t5 swap on my fairlane. Thank you for the effort to make the videos for the car peoples.

Good luck Andy. And happy Thanksgiving!

That will be an awesome build!!! Good for you!

Good plan Andy. My 66 coupe came with a 302 that someone swapped in at some point. A couple months after I got it I spun a cam bearing...so...time for a rebuild. Went with Edlebrock topend kit, Comp cam and lifters, went .20 over on pistons and .10 under on crank. Engine is sitting on stand waiting for the rest of the car to be finished. Looking forward to your progress.

I'm where you were at. Thanks for the video. Good luck though I think you're gonna be way satisfied with doing the 347 stroker. I'll be doing my 67 this late winter/spring 2023.

I'm in exactly the same position as you with a tired, oil leaking 289. I'm looking forward to the upcoming videos!

Nice choice, I hope everything goes smoothly 🙏 I'm interested to see what heads you go with 👍

Awesome Andy! That’ll be a fun project! I’ve got a mystery leak out the back too. Replaced the rear main (last guy left the pin in and installed a rubber seal), did head gaskets, thread sealant on the bolts… everything that the internets recommend. Still leaks. Albeit less now. It’s hard not to feel defeated. Between the oil burning and leaking, I’m at a quart every fill-up. But hey, after 3000 miles, the oil still looks brand new! …cause…you know…it is.

If there’s no oil under it , there’s no oil in it !

I secretly wish my 69’s 302 was tired too, so I’d have a legit excuse for an engine swap. So I’ll just live vicariously thru you Andy as they say 😊

Partially inspired by your channel I went out scored a dream car. 1966 mustang fastback, factory gt.

I have a 66 coupe hipo 289 good videos they help me out

Really cool to see the direction you are going to take with the engine! A 347 will wake the car up!

Nice looking forward to the progress. I would’ve recommended prestige motorsports. There 347 long blocks are like $7500

Hi Andy, my 66 289 is weeping oil around the heads too; I just assumed it was the head gasket. My 289 is also pretty tired and ready to retire. I am thinking I will get a fresh rebuilt 302 (306) with GT-40P heads to replace it. Love the videos.

I put a 331 in my 65 based on a roller block from a 98 Explorer. Those extra cubic inches are really nice! I'm curious to find out what you plan on doing for heads in this latest adventure.

How awesome! I word of advice, I have a 347 in my 65 and cooling it was harder with the small 17 inch radiator. Upgraded to the 24 inch radiator and I’ve never had cooling issues. Downside is you’ll have to fab the front end to make it fit. Also, I went with a T5 just like you but I’m not content. I feel like first gear is useless with my motor. If I had to do it again, I’d go with a 4 speed top loader. Good luck!!

That's the best way Live and learn 🔧🐎🚗👊🇺🇸💪

Hey Andy thanks for all of the videos. You have helped me so much. Question have you changed the motor mounts with the engine in? Have searched all over and not many videos charging motor mounts with engine in. I have a 65 coupe with 302 , 4 speed top loader. Thanks again.

Well, typically when you replace the bearings there is a good chance it would burn less oil. Mainly due to the rings no longer banging into any ring ridge. Then replace the valve seals (doable without pulling the heads). Prolly lots of good miles left in it.

Did you put loctite on flywheel bolts? Oil can come out of those on some crankshafts. I would check and see if the threads run through into the motor. They don’t on all motors, but is a good habit to put loctite sealer on those bolts. Orange permatex works well and doesn’t need heat to remove. Could explain part of rear main seal leak area. (if the crankshaft bolts go all the way through.) Flywheel is 85 ft lbs. Haynes manual for these cars has good info and leaves tips for where you should put extra gasket maker, etc. Like on the coolant ports around the intake gaskets

Andy I have exactly the same issue in exactly the same places. I have a rear main seal and was thinking of ordering a new oil pan. What has stopped me is that I believe that my oil leak is coming from where the block meets the heads, exactly where you point out. To add to this my 289 is less than thrilling to drive. I am now looking at a fully dressed 302 from Summit. It's 300 HP which a lot better than what I have currently. Most of my driving is mild so 300 HP will be more than fine. Weird that we are seeing the exact same issue. Oil leaks suck. Oh, I know that you put in a 347 Stroker. I think you're happy now. How does the car feel now?

I replaced the 289 heads with 351Windsor ones in my 66 Mustang. No clearance issues. Big upgrade in performance.

Hey Andy make sure and put together a good well matched combo that makes decent compression 10 to 1 or better. and a good cam and heads, Not every 347 is created equal ;-). Get good parts don't be thrifty or cheap on parts ( AFR, trick flow etc....) build it once! and be done. ive had 289s 302s 347s 363s a well built 347 will roast tires all day and be a reliable FUN motor in a 5 spd fastback all day everyday.

Great 👍

My 289 is tired. Built in the 80s. I am trying to decide the best bang for my buck... I know I have a bunch of options. If you stroke this, do you have to change out the tranny? Anything to the body to assist with the added ponies?

You not going to do yourself Andy? Always wanted to tackle one day myself 💪

you need the roller cam block with roller rockers, 302 upgraded to 347. 450 horses.

Excited to see it! I think you said you’re swapping the intake over? Wouldn’t an RPM AirGap make more sense with that displacement?

I'm a 331 CI guy just for the little better rod geometry but the 347 are nice! The T5 sounds like you need to add a cluster gear support plate. PM me and I will give you the heads up on it.

The other choice is a 351 Windsor engine. Its the same external size as the 289/302 and bolts right onto the trans and engine bay. The other good news is you dont have to deal with the problems if the Cleveland which has a number of issues.

I built a 331 with an Isky cam, Johnson lifters, and AFR 185's. 347 should be nice, roller cam and block is a good choice.

Hi, On my '66 Mustang I've decided to replace my worn out 289 w/ a new BluePrint ford 302 c.i.d. 300 hp dressed engine. Do you have any advice, what do you think of the 302?

What a cliffhanger this was! Pretty sure you're 289 block is stronger then the 302 especially if it's a roller 302 which begs the question are you going to convert to a roller cam when doing the 347 stroker kit? I would!

347, I like it!

347... yup... my 67 has a 19895.0 full roller 347 stroker... worth it

I like the engine stand. Where did you get it?

2:15 seconds in and we're about to start discussion engine options. I'm placing my bet on 347 stroker. Edit: nice 347!!! I think a couple of weeks ago I commented something about at 347 to you but it may have been one of the three other guys I subscribe to that work on their Mustangs. what oil pan are you going to run on the new block. The 9 quart Canton oil pan I have makes for a really long warm ups. Knowing what I know now I would like to run something a bit smaller.

What kind of rims are on your car

Keep in mind 302 crank is lighter so it will take a 50oz balance not the 28oz

Did you add a short throw shifter to your T5? If so what kind?

Hey, you will need to upgrade it with a Coyte 5.0 with a standalone ECM. you will have more fun. and you can make more videos

The T5 is not going to be happy with a 347 but don't worry Tremec makes the TKX.

It’s all about the $$ and how much is too much. I’ve been doing the same research as you, Andy. But I’ve got a 5 inch wider engine compartment in my 67 Fairlane. Actually, the 5” wider compartment was measured against a 67 Mustang. It might be even wider than the 65/66 Mustang. My engine compartment may be wider but my wallet is not. Blueprint crate engines offers 302 through 427? How can 427 be possible?? Their price doubles from about $8000 for a 408 to $14k for their 427. They call these bigger cu. in. displacements, “Ford small block ‘style’.” Their site states that they are no longer accepting orders for the 427. Maybe that’s more due to supply chain issues rather than the richer Ford enthusiasts?

No advance to running a 347, never seen one go over 30k, 331 much better setup, also figure a set of better heads than those stock 289 heads. I worked on a 289 with the one piece rear main, having to pull the transmission, just why.