"Cyclone". In the 70's I wanted something I didn't need, polished intake on my Pan. Don "Gramps" Smith put me wise to the rough intake surface that mixes air and fuel more efficiently.

Atomizing the fuel. I love the parts, they are beautiful.

If you had suspenders and a belt on you would be a dead ringer for my stepfather. He left me a 82 FLH.This bike has been to Sturgis over 20 times. I used this bike to pass my ND road test. The instructor kind of chuckled and wished me good luck. I was the only one who brought a big bike. Passed with no deductions. The bike has 80,000 miles and I ride a few times a week. I really enjoy the shovelhead videos and look forward to keeping my bike on the road for as long as possible. Thanks Mike keep up the great work.

That evo build is going to be sweet.

Those heads looks amazing. I need some for my Evo

Interesting! I've never seen a "textured" intake. Have seen dimpling though (looks like a golf ball); what a trip. Those engine gurus are total freaks! What a cool group of dudes.

Got my own 81 shovel rebuild coming up in June. This gets me super excited for that.

I think we are all scattered. If you keep the wheels rolling, the projects will finally get done. Keep up the great work.

Brain cramps ....get them all the time... think its part of this getting older stuff....Gotta be tuff to get old...Beutiful top end work thanks for sharing...

Beautiful work....a work of art....this is so much fun!!... Thanks for posting....as someone else said...thus is the only YTvideo you can click the " like" button before you see the video

Very nice Heads I want this for my Evo sporty 👍

You can see the quality of the workmanship very nice job.

Great video Mike! I have a 96' Heritage I wouldn't mind massaging....

Thanx, Mike! . Love you. Prayers your way.

Those are some gorgeous parts.Thanks for sharing.Can’t wait to hear that thumping Evo👍.

Thanks for more Evo content. I have a 1988 FLHTC, stock except the carb was updated to a later CV Keihin.

Those pistons are almost to good to use in the motor and should be on a shelf in the home bar. Loving the videos keep it up. From a young buck down under

THANK YOU...for sharing. Some really great-looking parts, like those pistons too! Going to be one fast stroker motor.

I’m over here drooling.

love your video's,,,,,and Bikes,,,,,,GasFlowed head is what we call it in UK Real tuning ! Beautiful Heads & Pistons, sure Jim's gonna love the torque its going give him longer arms Greetings from Wales

Beautiful parts Mike, I'm looking forward. Thanks for sharing 👌👍

Thank You Mike for each video

Looking good Mike !

Thank you Mike for another interesting/informative video. When Victory motorcycles were being introduced to the market I worked as a CNC machinist on the heads. It took three Mazaks doing different operations on the castings. The valve seats and guides were cooled in liquid nitrogen. The castings themselves were heated in ovens. The seats and guides were then pressed into place before the being machined. The heads were oil cooled and air cooled. Interesting design and very close tolerances. Total tolerance for the guides was 0.0003. I have one of the early heads that was scrap. Dumpster Diving. Lol

Vaporizing the air / fuel mix, Mike. I get a lot of "brain farts" too ; think it,s all this covid and isolation Those heads ,cylinders and pistons are sure things of beauty!!!!!!!!!! Look really efficient. Thanks for the great video. Stay safe.

I went to Dave Mackie website, and if I ever do another motor, it'll be through his company for sure. Beautiful, awesome work...

Mighty fine polish work! It all looks good!

Can't wait for Jim's build, always love stopping by the garage have a blessed week my friend.

That was smokin hot mike that motor is gonna hum nice job

Heads look amazing,Real nice work Mike

I just sold a brand new set of Branch O'Keefe heads that looked similar to those. They were very beautifully done. I chose to sell them because they also required a proprietary set of pistons

When I bought my shovel many years back . . from an dealer actually , they claimed it had an cam . . I nodded & smiled as I knew those things were important to the motor functioning

I am really liking my Evo it is a very good motor. I had two twins cams and sold them both after seeing some major failures in other guys twin cams. That is a beautiful motor Mike I'm looking forward to more videos as you finish it.

I'm soo waiting to see anything new with the flatty, I especially love the videos of your yellow knucklehead.

great looking set up

The parts scream speed can't wait on the build.

Love me some high performance evo tech talk

Circling back around to look at those beautiful parts. Lovely.

Great show today. The only order is disorder

Good Evening Mr Pacific. Looks like that Evo is going to be a fun build. Personally, I don't mind whatever it is you do when making content, I just enjoy listening to a cool dude.

Beautiful

Another excellent video Mike . Thanks

Intake ports have that hump on the floor probably to raise air speed and provide a short turn radius. The exhaust looks like it may have been extrude honed. Lots of r&d there. Nice!

Very nice work on the top end👍🇸🇪 Kjell "the swede"

A friend had similar head work done on an 88" Shovel. It was amazing!!!!!!

Love the polish work on the heads, lot of people think that the intake side needs a high polish, but there wrong, as you said, you need the texture on the intake side for good fuel suspension and atomation and the exhaust high polish to get that exhaust gases out freely and unrestricted

Oh man! Sooooooo excited to see those in person Mike. They look stunning.

Atomization is the word. Thanks from Neil

Mike the work looks great can’t wait to hear it run when it’s finished

Was atomize the word you were looking for? 🤔 thanks for the videos always

Beautiful port and polish work!

That is going to be an impressive build.

You stay healthy Mike....we need to hear that engine fire...!!!!!....stay safe bro...:)

Mike I have an interesting one for you. I have a 1998 electra glide ultra classic. 33,000 miles. As far as I or anyone else can tell, all engine components are original. I was getting a top end noise ( I had asked you a few questions here on your videos regarding this ). I ended up replacing the lifters and pushrods, andrews ez install pushrods. Still had the same noise. After much going back and forth, I pulled the rocker boxes. When I opened the front rocker box, it was immediately apparent the intake valve retainer was hitting the rocker box and the rocker arm was hitting the retainer before touching the valve stem. I ended up measuring the height of the intake valve compared to the back cylinder. It was many thousandths taller. Hummmm ? Pulled the heads and cylinders. Pulled the front cylinder intake valve. The keepers for that valve were mushroomed and full of fractures. With the keeper being mushroomed, it allowed the retainer to slide up the valve stem. Causing the retainer to contact the bottom of the rocker arm. With the rocker arm not pushing straight down on the valve, it wash pushing the valve sideways and causing it to contact the rocker box. I took all my parts to my local full service bike shop, Heads 1st performance in Westville Indiana. When he pulled the rest of the valves, the keepers for all the valves were full of fractures. I have not talked to anyone yet that has ever seen or heard of this happening. Have you ever dealt with this ?

"When he had a bearing go out in his lower end 🫣 ... the lower end of his motor" Thanks for the clarification 😂

I'm acquiring my old evo fxr back in a few weeks. I'll be interested in this evo build. Great work Mike!

Very nice. I don't think my current block could take a whole lot more building up. Nor could my little softail frame handle a bigger motor, but it would be fun to take on a project like that. My bike "Donna Sue" is past due for a teardown and painting, sadly due to Oregon rust gremlins. Thanks to your block painting advice from this series one day I'll be able to get her cleaned up. 7700 miles and she's a 2001 looks the part of 18 years old but runs like a brand new bike. She should look the part again. Man oh man I love bikes.

Mechanical jewelry, the polishing is superb, throw a turbo on it, scary

My hat off to you brother I'm 65 had to shut my shop down due to back failure.👍 keep up the good work.

I tapped on the little like button, and can confirm it's a good thing 🤘😜😁

Great work Mike!

👍👍 once again Mike! 🇨🇦

Just seeing that thimb nail of that head, sure looks like a Branch/ o'keffe head to me. They do some beautiful work.

Sweet parts!

Looks like jewelry... Beautiful!!!

All this is very nice.

Thanks for all the great videos. Really enjoy just seeing what you are currently working on. The knowledge and experience you share is invaluable.

I love seeing New parts. Beautiful. Keep on rolling.

Atomizing I think the word you were trying to find. I enjoy your videos

Pacific Mike, you think maybe I could be your next friend named Jim, 😁😁😁😁😁😁😁. GOOD FUN COMING LIVE.

HOWDY MIKE, it has been as high as 80 F degrees here in INDIANA in APRIL so far in 2021 ... but TODAY the Weather Guessers & Drama Queens are forecasting 3" of freaking SNOW !!! ( 04/20/2021) So - today - I get to watch You-Tube VIDEOS = thank YOU for POSTING COOP .......................................

Man that’s some good work. Parts look fantastic

now that's some nice work

thats some insane polishwork on the head, very nice

'Scrib'd once I heard Mackie mentioned. Had him do several sets of heads for me for 8o inchers years ago.

Simply gorgeous 😍

Fuel atomization is the word you were searching for. The texturing causes micro vortexes that causes turbulence in the intake air, causing better fuel atomization, resulting in a better A/F mix. But we knew what you were saying.

Hi Mike love watching and learning! I am excited for you guys that's going to an awesome motor.all the best Kenny

Thank you

Love your videos! From Alabama coast.

My EVO is back on the road! Thanks for all your videos. They were a boost of confidence for the build. Also, I'm glad you mentioned DME. I sent my parts to them and they did an absolutely fantastic job. I hated to assemble the motor and hide the pistons and beautiful machine work. Look forward to seeing the HP build. Cheers!

great vid, Mike.

Mike, those are some beautiful pieces of metal. Beautiful finish and polish, a real piece of art.

Nice machine work

Nice work. !!

Hey Mike your my favorite channel. Thanks for your great work. I have the 2001 Duce and the starter was making that noise! I changed the parts in it but now it makes noise while driving does get quit as the bike warms. I have chosen just to buy a new chrome starter hopefully fixing this noise. I love my bike have another in Greece 2007 Dyna Wide Glide.

The Universe! I recently bought a 97 Faboy evo as well! My engine is just a bit sassy. The ignition doesnt work properly. Especially if its cold outside. But overall she is absolutly beautiful and i love her. Could you do a video on how to adjust the ignition. Or maybe u know this problem and can tell me? And excuse any grammar or spelling mistakes. I`m from Europe and my english is a bit rusty.

Can’t wait to hear this beast run!

A really cool dorky gear head 😎👍 note the cool comes first thanks brother

It’s going to be interesting to see what carb is used to make this beautiful motor work. Thanks for your time, cheers from uk.

Love your videos especially on evo work on jims bike. As a young man nearly 60 i have a 1988 softail. I do as much as possible for my bike. Currently i am putting a stroker kit in my evo from 80" to 89" not as pretty as your heads. Keep up the great work. From south Australia Gazzar

Beautiful! High performance parts is like looking at jewelry!! Lol

When I was involved in engine building (forty+ years ago), porting the ring lands was a new thing. Or am I scattered as well? Anyway, I did notice those most impressive pistons appear to be ported, yes?

When he had a bearing go out in his lower end. LOL!!!! ( Of his motor ) .. Yeah Mike 😂

👍

Nice !

Can't wait to see the build on it, should be a monster of an evo, what bore are the cylinders?

Those heads are a thing of beauty no expense spared no doubt! what HP are we looking at Mike👍

Those pistons look awsome.! I didn't have the $$$ so I used JE flats on my hemi shaped chambers. I know im loosing performance but I plan on dual plugs since I want to stay at about 10-1 comp.

I got 89’ FLHTC, waiting to get the engine back from my mech. I got an 87’ FLHTP I swapped an engine out that won’t start, timing I think. A 79’ Ironhead I need to finish, and my friends 2k 883 to get going, bad gas tank. Wish me luck 👍🏼