This Set Of Big Block Chevy Race Heads Needed A Lot Of Work! Liquid Nitrogen and Specialized Tools

[@JAMSIONLINE]

You can learn more about the history of Rimac and the Rimac Tools Big Blue valve spring tester at: bit.ly/3GGAA4z A special thank you to Rimac Tools for partnering with us on this video, but more importantly a special thank you to Rimac Tools for being an essential tool in machine shops like ours around the world since the early days of the industry itself!

[@domenicomonteleone3055]

Jim's Automotive Machine Shop Fathet & Son Team amazing work they do in this shop respect back to you 🙏 from 🇨🇦 #YSW where I follow you 💯 from

[@juanasanelli6831]

Muchas gracias por el dato de la balanza para resortes Rimac,Lo conocía ,si pero hacía años que no veía uno,hace un tiempo mandé a reparar la tapa de cilindros de un motor Kia de dos ejes de levas, un mierda de motor. El machINE shop, no tenía balanza de resortes,y armó las válvulas y habían resortes vencidos .Tuve que después reemplazar los resortes Con el motor armado.Tremendo trabajo.Se rompió una confianza de más de 30 años.

[@shadow83blk]

Rimac is proof that if it ain't broke don't fix it.👍

[@bigmuz_pilot]

I'm going to buy a Rimac based on this video, what a good company!

[@wickerman9569]

Man I would be like a kid in a candy store if I had access to the equipment you guys have there. Thanks for taking us a long.

[@Sicktrickintuner]

Only takes a bunch of $$

[@badrulofficial]

@@Sicktrickintuner in my country will take bunch of $$$$$$$

[@bad406camaro]

The cost of new equipment is prohibitive to most. I have recently purchased a used 530 Vanorman surfacing machine for a very low price after researching modern electronics to replace the entirely burnt 1980 circuit boards I was able to restore function and now have a machine with less then 2000$ USD invested that will finish a 45-50 r finish on aluminum. I guess my point is chase your dreams and work with in your budget and you can reach your desires. May not happen as fast as you want but you can make it happen

[@altonb93]

I’d be buying engine parts just to machine for fun😂

[@48statenomad]

I'd fuck up EVERYTHING. I can build an engine but to machine anything I'll definitely fuck it up

[@stevenbelue5496]

Quality work, those angles is where the powers at, nice job blending and unshrouding. A lot of shops could take a lesson from this bright young man.

[@Mr2eyedjack]

Great work, I can appreciate the work and clean shop plus the editing to boot!

[@JamiesGarage1]

Love getting new tools! Awesome work as always 👊

[@williamharrison54]

Pro tip : magnetize a pocket screw driver, put some lithium grease on the grooves in the valve stem. Use the magenetized pocket screw driver to put the keeper in place. The lithium grease will hold the keeper in place as you slide the pocket screw driver up and off the keeper.

[@skylinefever]

Excellent. I'm glad that the damage wasn't deep enough to require welding.

[@gregboggs4721]

This was my job when I worked at Hendrick Motorsports. We had a dedicated honing tank. Done everything from installing seats and guides to honing and grinding and finishing and assembling heads. I retired last year but man I really miss doing the work.

[@bad406camaro]

Just a note to let you know the content you create is both inspiring and informative. Having been a dealership tech my entire life now in retirement I have revisited machining ( i hated it as a 12 year old being forced to work summers in the old shop) playing with the equipment my grandfather had left me when he passed 30 years ago. When he passed due to monetary and space constraints, I was only able to keep a few pieces. I chose to keep the Sioux seat grinding set the Sioux valve refacing machine a Vanorman 570 and a Vanorman seat and guide machine. All the equipment was stored to the best of my ability over the years. The last few years I have restored all to operating condition. I have also added a 1980 530 Vanorman I got cheap (completely burned obsolete electrical boards) after upgrading to modern vfd it operates perfectly. Thank you for the content and the information you create. It is truly inspirational.

[@JAMSIONLINE]

Awesome story! I understand “I hated it as a 12 year old being forced to work summers”… It just didn’t take me as many years to come around to it lol

[@ejgrant5191]

I know where your coming from...When my buddies Sunnen VGS20 Seat & Guide machine had motor board problems....Sunnen wanted $2000 for a "retro-fit kit" I was able to source a $300 VFD drive and build a control system to get it back in operation 3 days after it went "FUBAR".....The entire cost of our "retro-fit" was under $500....Not every shop can afford a $100K+ CnC block machinig station and sometimes the old school craftsman can create better end result.

[@littlejackalo5326]

I was the opposite. I loved going to work with my dad. From an 8 year old, to a 12 year old, to building my first house from start to finish when I was 15 (EVERY SINGLE DAY of the summer, every weekend, and every moment I wasn't at school), to becoming VP at 18. Then I decided to go to college to go to med school. Stupid decision. I would have made more money than 99% of doctors make, not had to spend half a million dollars on school, and not have to build a business from the ground up, and not had to have waited 10 years to start making money. Just accounting for the cost of school, and lost wages over a decade, that would have been more money than most doctors make over a lifetime.

[@bradhaines3142]

@@littlejackalo5326 eh youre talking some pretty shit doctor money

[@brustar5152]

That liquid nitrogen process is exactly the process we used at Douglas Aircraft in Malton, Ontario, Canada to install bushings into the globe ends of the DC10 wing spars way back in 1968. We used the power table lift of the mill we used to bore the globe end hole to push the bushings in with the wing mounted on a sine table and held in the air by two gantry cranes, it was a long sucker. That nitrogen process worked like a charm.

[@icbtech01]

Stuff like that would make for a great video, aircraft shops are awesome places. I remember when the Malton Douglas plant was still in operation.

[@miceinoz1181]

I have been hanging for ages for a full video like this again. Brilliant work! OK, so how is the new shop coming along? We have not had much update for a long time.

[@KrautSpaceMagic]

I wanted to say thanks for turning me on to those ez-lok thread inserts, I ended up having an intake manifold come in the day after I watched that video that needed one, it worked perfect and was a fun little project on the Bridgeport

[@Pyle81]

Its good to see that you guys have the ability and the patience to basically nurse these "Well Used" aluminum heads back into service again. A lot of shops would have just said "Save your $$ and put that towards porting a new set of heads and move on. These are toasted " Its scary what there getting for new a new set of QUALITY BBC Aluminum heads today. And thats if you can even find a set. Then comes all the custom work to make them do what you need them to be able to handle. Be it, Natural Asperated, Blower or Turbo (multiple) charged today.

[@willyb2412]

I truly enjoy seeing you and your father taking so much pride in your work I bet your customers love you guys

[@JohnDoe-ml8ru]

Someone that is actually installing valve guides correctly! Bravo! Very awesome! You also are supposed to install seats like this, prevents them from dropping later.

[@inscoredbz]

That radius cutter to get rid of the ridge in the chamber and around the top cut is pretty dang sweet. Sure beats blending by hand for sure.

[@upstairs202]

In 1973 we rebuilt our first car engine-a 1959MGA. Although it was a comedy of errors, as we had little experience other than single cylinder motorcycle engines, we did prevail. A few years later, I jumped in with both feet in the machining trade. I’ve loved it for the last 41 years. Great job!

[@PapiKembar]

Good job my friend, i am from Indonesian 😁🙏

[@johnelliott7375]

Good for you that remac is helping you out.

[@butchwilson3180]

You're very very lucky to have a teacher like your father I learn pretty much everything I've learned by either the School of Hard Knocks but I learned a lot from my elders too!! Really enjoy watching y'alls videos. 100% professional and I love if a job's worth doing it's worth doing right that's my motto too!!

[@IanB22]

Holy god this was a truly thorough thorough - HIGH quality job. I love youtube for recommending your channel.

[@wilsonrawlin8547]

Still watching. and knew Rimac had dropped off the market. Made a lot of money selling used units in the day. They are the best IMO. Totally agree with cross hatch in the guide. Nominal to have a viable surface to carry oil on the wear faces of the guide and valve stem. Nice work and a nice set of CBB heads for the street.

[@djosbun]

Excellent attention to detail by logging the spring pressure of each valve spring.

[@eikodunn]

I subscribed after watching this video of the valve job on the BBC heads. ⭐️⭐️⭐️⭐️⭐️

[@juancarlosquintana4537]

I have been surprised by the great work you do, happy greetings from tijuana mexico

[@peterhodgkins6985]

I love those crisp seat angles! That right there is some outstanding work. 45 years ago I was shootin' seats with stones. You could get 'em pretty clean but you had to continuously redress the stones. And we never trusted new valves either!

[@Faith_Family_Firearms_Freedom]

Always enjoy these longer videos. Educational and entertaining 😎👍

[@johnyewtc1]

Would love to see a video update of the block installed back and running again.

[@GTFour]

💯

[@charleshill506]

Those heads are a beautiful as any piece of art I've ever seen. (And I was once an art major)

[@jeffnabors833]

I wish I could have worked for your shop. Learning so much. Want more.

[@jacobthornock317]

Knowing a good machine shop and seeing what all is checked and toleranced is worth the price.

[@devscally]

Honestly, I'm in awe of the work you guys do. And I can also appreciate the detail you go into when recording the process which I imagine adds aot of time to the job for the benefit of your viewers. I also really like how simple the edits are done. None of that nonsense music, or fancy cuts or forced humour. Just simple detailed capturing of the process. These videos are very 'zen' to me.

[@jimc.7121]

Outstanding narration! Thank you for all of the information you include in your videos. Very well done!

[@Formerlywarmer]

Best video I’ve seen this week. Cool car stuff with a great family feel. Bless you all MOPAR2YA!

[@rickintexas1584]

That was sweet. Thanks for a great walkthrough of the process. I'm a mechanical engineer. My job is to call out what I want and trust that you guys can deliver.

[@Kevin-wj4ed]

Your dad has been a good mentor.

[@bighitstepside]

love your videos, no fluff in a world where most videos are 95% fluff

[@BrodieBro323]

Looks like so much fun working there. Kinda wish I knew how to machine stuff. Should have took machining back in high school.

[@chloehennessey6813]

Got my dad one for Fathers Day. Great gift idea!

[@raymondj8768]

I Was a dragracer i always reworked a new set of heads there all a mess from mass production . those heads came out fkn sexy bro great job !

[@specforged5651]

I would absolutely love to just come hang out here for a day and see all the amazing machinery and talent at work. Luckily being in industrial sales as a part time day job, I do get to see a good bit of this work. I build a lot of forced induction sxs, snowmobile, bike, atv, etc, etc engines, but don’t get to do the machine work, mostly just assembly and porting work. Awesome guys! Love the channel!

[@robertbradford7892]

Attention to detail bar none, love the work great channel.

[@ronhuffman7973]

Fun to watch a skilled technician at work! Lots of work.

[@alanpecherer5705]

You guys are super skilled. A pleasure to watch!

[@glennb2006]

Nice work. Those valve seats are so close together now. Wow!

[@bigal878]

Great video and attention to detail 👍🏻🇦🇺 I’m guessing those heads are set up to work with a Solid Roller Camshaft?

[@randalljames1]

well it is fun to see where technology has gone... When I started doing this kind of work, we had a full set of stones and motors.. best thing that ever happened was single cutter for the entire head side.. Finishing off the radius like you do is arguably the best part of a valve job for most heads

[@cashtalks6253]

If anyone lives in Georgia just remember Goza machine shop in acworth them guys are great!!!

[@Sirmellowman]

I personally find a ream and then quick little buff up with the stone is the best way for sizing guides.

[@erbenton07]

Forget the valve guides. I want to see a video on how to make that icecream!

[@8a41jt]

To say that this is impressive is an understatement!

[@tjzulu1]

Excellent video!! Kepp'em comin' brother!!

[@Ujeb08]

As a machinist myself for over 35 years, I did a lot of similar work as you showed in the video. I retired 5 years ago and still watch many machining channels on KZbin and I enjoyed your video very much! the only procedure I would question is toward the end when you were using a smart phone to level the head in the machine. Now I love my Iphone and use it for all kinds of things, but I'm sure that it is not accurate enough to use in a machine shop. Get yourself a good tool like a Starrett machinist level.

[@JAMSIONLINE]

Thanks! No machine work was being done at that point. Highly uncritical, just needs to be close to level so that when compressing the spring things don’t move on ya. We have plenty of Startett levels and otherwise but there are times when it is critical and times when it is not.

[@talljake]

Great video! Some of the close ups of the valve job showed that there was a lot of pitting or porous surface finish in the rest of the combustion chamber. In your opinion would this be cause for concern (sharp edges providing hotspots for pre detonation)?

[@johnsonsteve1984]

Had to stop the video! That is awesome that you made liquid nitrogen ice cream! Good family owned business fun!

[@samrodian919]

You do very nice work there at Jim's Automotive Machine Shop

[@lazarusmunien2087]

excellent workmanship 😊

[@MichaelRadelet]

Personally I find a lot of the performance valves are very seldom concentric to the stem, oddly enough the stock replacement stuff tends to be way better, top line stuff for example compared to elgin performance. Good stuff otherwise and always good to do your due diligence and check all these things.

[@tedgerstenslager2949]

A ton of stainless valves come from Brazil and Venezuela. QC may not be up to snuff, and collets can be worn out so the valve does not center every time.

[@thatruinedmedia6625]

A lot of OTS performance heads aren't as good as people make them out to be. Ive done a lot of Dart LS heads where they were full of chips, had tons of casting flash in the water jackets, and seats with .007" runout and .012" variance in seat depth. To think that most people just bolt stuff like that on is scary lol

[@wilsonrawlin8547]

Almost like the expect the buyer to end up machining them to fit the valve seats.

[@MichaelRadelet]

@@wilsonrawlin8547 I see these problems in the “ready to bolt on” heads as well

[@wilsonrawlin8547]

@@MichaelRadelet IF you've seen this from the people I mentioned that is scary.

[@txstang84]

Works of art-beautiful job y’all

[@robertgregilovich2229]

Was a cryogenic fluid production specialist in the US Air Force. Cooled many a can of pop with liquid nitrogen. Liquid oxygen -297 and liquid nitrogen -321. Cool stuff, pun intended.

[@MrBanacek]

Outstanding father/son business. The devil is in the details, and this shop pays close attention to the details. Well done men.

[@georgiafan6618]

Those valves were close! Is the comp ratio affected at all when you milled the heads on this job? This video was an improvement from others you’ve made. Editing and overall picture was really good. Those heads came out great and it’s evident that your dad taught you well. He passed on his penchant for the details and perfection. Maybe a follow up from customer to see how they fared. 👍

[@filmaynard]

Those valves are huge!

[@erwinwieringa41]

Hi, love your content. As a mechanical engineer I have experience with blue testing machined parts. Looking at your procedure of blue testing the valves I am puzzled. I noticed that you blue test the valve against the machined valve port. Everything checks out fine. But than you grind the valve afterwards. Possibly changing angles and fit. Just for fun. Could you blue test again after grinding the valve and see what print looks like? Or explain that that it does not matter?

[@thatruinedmedia6625]

do you not measure seat heights and concentricity before and after you do a valve job?? especially since you've replaced guides? or is the Serdi a rigid enough machine where this isn't a concern? I'm used to the Sunnen VGS, and trying to get seats better than .002" concentricity can be a struggle when trying to keep seat height within .005" and combustion chamber volume the same.

[@dekebell3307]

Beautiful work fellas!

[@pauljanssen7594]

I like using a sharp reamer and then I would Dingle ball the guides for crosshatch for better oiling I used to just shove the guys in the freezer for a couple hours.

[@dangerrangerlstc]

I don't have near the set up you do. Just an old valve grinder, a seat grinder stone setup, and a valve spring tester like you've got. I'm just doing old tractor valves so thats all I need.

[@av8tore71]

Have one but it's not for vehicles, I got it for the valves springs on Lycoming or Continental aircraft engines

[@loveoldcarsguy]

Wow! You guys are very impressive!😃😃😃

[@tedheierman1181]

Very informative video. Please keep them coming.

[@triggeral]

LOVE THIS! Thank you for sharing.

[@GIGABACHI]

That one Hell of a job you did there. Been a long time since the last time I saw BBC heads look THAT NICE ! 👌😎👍 I always wonder how much of an improvement would be having a DOHC arrangement on one of these Dinosaurs. Something like the QC4V or SB4 Mercury engine.

[@localcrew]

Those springs are insane!

[@jameshood3692]

man I wish machine shops went the extra mile like you guys, most shops would just cut the seats and be done, wouldn't of cleaned anything up

[@dhamps10]

Do you not lap the valves on a new grind? All of this is very interesting to me, as I had no experience rebuilding engines.

[@rodgerq]

Beautiful work!!

[@98integraGSR]

Did you do anything to the portion of the guides inside the port to blend them into the portwork?

[@joeharvey8423]

With using carbide cutters I see the markers being uses for checking the seat position, does that eliminate having to lap valves anymore with grinding compound? Or is it still used and I haven’t seen it yet.

[@michaelscott3925]

Is there a reason you “blue” the valves to the seats before you regrind the valves?

[@shawnmcatee895]

The previous valve job seemed pretty bad. Wondering if that non-concentric valve seat is what bent the intakes. I'm racing a set of those Dart Pro1s right now.

[@jefferybuchan4235]

nice job on those heads.

[@puppygadget3189]

Should the heads be surfaced before the valve job is done or not matter?

[@kennyallison7201]

I want a valve job like this in NC!

[@billquillin1952]

You do excellent work!!!

[@GNX157]

After that work do the combustion chambers need to be cc’d again? Who will do that?

[@carmudgeon7478]

Building an engine for the Starfire?😁 I found an old Rimac 500 pounder and a Sun distributer machine in an old abandoned shop in Holcomb, KS. That spring tester hasn't needed any work in 30 years. No wonder they are the standard. They chose wisely who to sponsor.

[@JAMSIONLINE]

Haha! That would be a lot of engine for the Skyhawk (same difference). We have the short block built for the Skyhawk but life get's in the way. Thanks for watching 😁

[@carmudgeon7478]

I believe the rules dictate Skyhawks require turbo Buicks. 👍

[@ponyrang]

Wow, Hello my friend.. All the best to your channel and hope you have a wonderful day !!!

[@cfauvel]

HAHA came looking for Soda Blasting painted materials, but stayed for the wonderful video of machining....I love what you guys do. Very informative...thanks

[@TheTruthBeToId]

That was so good. I was glued like a bug to light.

[@jondavidmcnabb]

The liquid Nitrogen was a cool thing for this video.

[@theondebray]

Top quality work.

[@brianwalk108]

When the super hot parts Meet the super cold heart do you have any problems with cracking or thermal shock?

[@theundergroundlairofthesqu9261]

I never would have imagined that valve faces and stems were not concentric!

[@jimsergi]

fun at work is always a good day

[@gabemcelhaney2696]

Do you match the depth of all the valve seats when you cut them?

[@vinmandich4020]

Why not use a radius cutter on the intake it’s worth it’s weight in gold in flow. Love the videos I’m getting away from the hundreds of stones I use the old Sioux system and getting a setup for my mill to start with insert seat cutting it’s easy with the Sioux but consumables are getting expensive comp to inserts. The quality standards of valves from factory has went esouth lol I tent to find on the expensive hallow stem or wild metal valves especially if from Farrea valves they come cut right most time I change seat angles so end up recutting them anyhow

[@PaydayGabeBCNV]

Great Stuff Gentlemen 👍👍. Throughly enjoy your Videos 😁 💯. Keep up the good work. Cheers 🍻, G. In beautiful Boulder City Nv. USA 🇺🇲

[@kingoftheplanet392]

Really nice video well done congrats

[@johnknox5692]

nice work vantastic looking heads