Port Development and Other Info

[@rogermoore7644]

I personally like long videos. I would rather someone take the time to explain things in better detail than just enough to get confused. I think you do a great job.

[@rtprecisionmachine6210]

Hey Eric, try shimming the spark plug to remove it out of the way to confirm that is causing the dip in air flow

[@richardgutteridge2127]

This is awesome! I'm seeing visually what I have read about and studied for a while. A giant thank you for taking the time to show and share your experiences with us novices! You ser are a champion! Please keep the lessons coming and they are not long enough! Lol!. I look forward to all of your work!

[@jojo_and_my_luvs]

I love this type of info. Im a rookie porter only doing a few heads of my own and there aren't enough videos on port development and port diagnostics or troubleshooting port problems. Most videos show what that particular porter does without much rhyme or reason

[@jesseduke694]

That was a great video!! Im tryin to get as good of a understanding of a port as I can & this explained alot for me!

[@kenfritsch8749]

I hear that 460 BB Ford Intake manifolds adapt easily

[@craigmatthews5887]

Eric, To prove your theory either put a non extended plug in it or just plug off the spark plug hole.

[@kimrusso4377]

Hey Eric, Dan from ny . Really enjoy and appreciate your videos and takin the time to show us novices about port flow. As far as I'm concerned the video was not long, and was very informative. Didn't one anyone was making heads for caddys.

[@tonypierce5661]

One of the best I have watched. Looks just like a 351C. Port. I am having same problems with a pro comp Cleveland heads port backing up.

[@GUEST-qw4te]

Most common size caddy engines are 425, 472, 500. Surprisingly, all the same heads and intakes.

[@b.c4066]

Not surprising, they were built for torque, they had to move a 4500-5000 pound car with 3.08 gears, 1100 rpm stall, and not buzz themselves to death with a power glide or 3 speed available at the time. They were barges. The increase in cubic inches over the years is a result of the epa emissions and having to make the same torque with less compression. If you consider all that, it's logical the way the platform progressed.

[@GUEST-qw4te]

@@b.c4066 a benefit to this, was the 425 was 100pds lighter than the 500. Engine masters had a team build one, I'd look for info on it, it might help.

[@dinadaughtry8993]

501

[@dinadaughtry8993]

Cadillac big block are very popular down here in Florida for air boats

[@danielmauter1737]

Hi!!.. Eric!!.. Another good Video. If long??.. I just learn more!!.. That never hurt??.

[@WeingartnerRacing]

Thanks for watching.

[@eliasmelendez1271]

Please make a part 2 so I can understand better on the spark plug. Are you going to add aluminum in that area to help increase cfm by smoothing out the spark plug? What i mean is are you going to make like a ramp so the air can either flow around the spark plug and over it without hitting any restrictions

[@clevo351]

Good Video Eric, Very educational .

[@flinch622]

So, looks like setting spark plug to land roughly 0.100 less intrusion fixes most flat spotting. I wonder if theres room to turn it towards exhaust valve say... 5 degrees for best results? This is some good work - very glad I watched.

[@chrismannifield3222]

Just an idea, maybe change the plug angle to use something along the lines of a rotary engine spark plug.

[@algonzalez8798]

Don't worry about the length of your videos. Getting quality info takes the time it takes. When I watch your stuff, I am not in line at Burger King, I am searching for knowledge!

[@cpolt1192]

Thank you for showing us this Eric. I love when you get deep into how the whole head works together. Thanks for taking the time.

[@Doug-b4p]

CAddy head What would happen if the plug protuted into the chamber more?

[@Levisnteeshirt1]

Why not shift the exhaust valve to a 18-20 ° if it can to put a bigger intake valve in it if it can get the exhaust valve out of the way ? It might leave more material in the intake valve pocket for more strength for the spring pressures of modern stuff

[@edwardspaccarelli5944]

Good video. Would like to see actual flow with balls and flags. Very interesting to see changes and modifications.

[@WeingartnerRacing]

I used them and took a video of it. I published it right after this video.

[@edwardspaccarelli5944]

@@WeingartnerRacing thank you, I will check it out and subscribe.

[@dzozepe]

maybe a stupid question but why is there that harp edge up there around valves in chamber? Some motorcycle heads dont have that.

[@randallmason9687]

What direction would You need to move the spark plug to get it out of the way?

[@roderickcarpenter2158]

What's your target airspeeds for the port

[@pjmccoy4216]

I enjoyed your. Vid.,- would using the P1 valve in P3 with everyrhing else that was done in P3 help to fix the dip in #s? I'm thinking a little more area,between the edge of the valve and the spark plug, for air flow off the valve when it's above 800 lift.

[@scotthatch4653]

Because the bigger valve did not gain more flow does that mean the pinch point cross section is to small? Is there a way to check velocity on either side of the pinch point ?

[@jrdmotorsports9718]

There is a way to test on a bench. But what does it really matter, if the mcsa, especially at the pinch, is way too small for the application? How would "velocity" fix it. Knowing that velocity speeds with restriction...

[@gutlass]

Thank you for sharing your knowledge. As stated by Richard Gutteridge, the visuals you provide really bring some things together for me. I particularly liked the explanation of how to use a flag.

[@shortturbo]

Fill the plug hole and grind it out of the way. And see. 😎

[@WeingartnerRacing]

That’s a good idea but still need to have a spark plug in a running motor.

[@kdeupser]

Excellent video. I can't help but wonder if that dip would go away if you indexed the spark plug?

[@johngulbunny8652]

Great video. Enjoy all your vids I do ports on 1 cylinders,use a sf 110 bench,balls,and flags I also flow with smoke into a clear cylinder block,youde be surprised what you kearn,when looking at the chamber as a port extension...

[@jrdmotorsports9718]

And what does all that tell you when compared to a real live running engine? Not much unfortunately. Cool as a tool to compare differences, but not for making power. The chamber actually IS an extension of the port, as is the bore and the intake manifold, and should be taken into consideration when doing this stuff.

[@MrKawa74]

You put a Bigger Valve , 2.350 vs 2.250= .100 , 050 Closer to Chamber Wall- Shrouding -.050 Closer to Sparkplug ??? If you think the Sparkplug is in the Flow Path, put a Washer under Sparkplug- Plug Spacers-Alinement of of Tip ?

[@victordahn2150]

great insight on the spark plug!

[@chewan639]

Hi, just wanna ask. Is there any benefit in potting the exhaust port to the maximum allowable based on the head design?

[@colbyhutzellfishingvideos4365]

You dont want to hog a port out as big as you can make it. The bottle neck is the valve, you dont want to make it into a funnel port

[@chewan639]

@@colbyhutzellfishingvideos4365 I guess I have adequate size of the valves on the exhaust side. perhaps its my manifold thats giving the bottle neck

[@NotempoT]

Q: could someone at home use a shop vac and flags to watch the flow you described? Or does it require a special ("powerful") set up? Thanks for the content.

[@WeingartnerRacing]

Doubtful

[@jcnpresser]

The caddy guys are gonna be coming out of the woodwork wanting their heads ported by you now. Least your setup now. I like the flag idea. So if the flag is jumping the short turn, do you need to take out some of the apex?

[@indyrock8148]

This was excellent 👍 thanks Eric

[@wayneireland4802]

Good vid Eric.found it quiet informative thankyou. Peace

[@bigredracer7848]

the longer the better please keep posting i am learning more and more every show you put up if they don't like to learn in a long video then they couldn't learn when they went to school

[@stevenshepherd1905]

It would be interesting to use a smoke stream to be able to see the air flow like is used in wind tunnels. Air is always pushed into the head ,not pulled.

[@mattyoung3004]

Great video Eric keep them coming! Thanks for sharing

[@2001falconfp]

Do any Ford Big six heads?

[@WeingartnerRacing]

No

[@bdugle1]

Great video! It’s long because you’ve got a lot to pass on, so thanks! Two questions about how your port works and how you develop the shape. First, would an angle change on the modified vane in the bowl have any beneficial effect? With the port aimed at the cylinder wall, it seems like giving the air a little bias towards turning might be helpful. Maybe not, since you’ve done this many times and I’m only imagining the flow. Second, DV uses those flow balls to manage shrouding between the valve and chamber. When you went to the bigger valve, it’s edge got closer to the chamber edge on one side and the spark plug on the other. If you used the various size flow balls to direct slight changes to available flow area at different lifts, you could see/feel the interference of that spark plug, which has to be adjusted anyway as you pointed out. This was one of your most interesting videos! Thanks, Eric!

[@Crysmatic]

you keep saying you "need" a bigger valve, but do you go by throat area, or flow at peak cam lift? because 387 cfm will easily support 800 bhp. What would you do if a guy is happy with 650 or 700 hp?

[@WeingartnerRacing]

You need area. For instance to gain curtain area you can either add lift or but a bigger valve. The super high lift is not practical with Cadillacs.

[@alejandro52612]

Excellent video!!! Loved the explanation on flow balls. Would love a dedicated video on their different uses!

[@shanerorko8076]

So if I paid for the plate you could do any head?

[@WeingartnerRacing]

Plate and bore and I could flow any head.

[@craigrowe2598]

Love the tech videos bud. Really look forward to your new stuff each time.

[@scottsigmon926]

Lots of chamber information here!!!! Something to think about when doing spark plug locations!!!!

[@fredfleming2455]

Hi Eric, great video.. I s it possible to get the chamber redesigned. as per the limitations that you've found whilst experimenting with this head??? Also the ports?? Will need newly designed manifolds, but as a package, heads & manifolds???

[@lougrabowski5201]

great video Sir i was wondering why you didnt shim the spark plug out .080 or so just to see what would happen with the top end flow ?

[@jimkillen1065]

Interesting video , really appreciate the info . I watched video a while back of a couple of engines that Richard Holdener carried I think to New Mexico and test it . I don't remember the name of the shop but they specialized in those engines I think . I watch Georges videos also to learn , I have a couple of the money pit Harleys lol . I was watching your video and that looks like a flow ball your using to point out the info . Just like to learn thanks againg

[@psychoholicslag4801]

The video is not too long. Good information and exposition. Personally I like a fine nylon thread as it follows the air very closely.

[@johnb7430]

Can't be too long.all good info!

[@DiamondLadyAmusement]

I like the longer videos!!! keep doing them!

[@rogerowens5669]

Thank you Eric

[@jacobmoore1757]

We mud race one of the Cadillac motors. Can i have the info on contac this gentlemen about these heads.

[@b.c4066]

Might be the Cadillac ranch, Holdener did some videos on their heads on a 500 caddy

[@jamest.5001]

I like technical videos, more technical the better! It's all about the details!!

[@randyrickermann1213]

Long ? Make it longer would like to seen clips on flow bench . keep up the good work

[@toddtraylor2648]

great info

[@robertkeime4907]

Great video

[@magnusdanielsson2749]

Very interesting 👍 Dont worry about the length. Anything worth saying takes time. A question regarding the seat ring. Do you prefer a margin left on it, or can the seat go all the way out to edge of it without any problem?

[@hondatech5000]

Thanks Eric

[@eterniaworks8802]

You can make them longer for me. Most technical ones better. Simple tool flag opened my ideas. You just showed us how to in simple way improove any port. With good vacum cleaner and flag you can find problems in any old crap that is not worth all the tooling to flowbench it but improve economy or feel of engine. I like the way you delivery it, no bulshit just knowledge! Most of stuff you deal with I no idea, v8 is rare to work on but old 30s 40s 50s stuff I do work on can be simply improved with flag!

[@bobcuomo5122]

Your videos can never be too long .

[@brianholcomb6499]

Nice Job Eric! I think your following Darrin Morgan fairly closely! I think you said you learned from him! 👍🏻 Holdner has a bunch of caddy engine videos up, from probably 1 year ago! We did a few, slightly upgraded rebuilds on caddy engines, years ago! I do know for sure that if you try to run 5000rpm, the rockers fail horribly! You have to get a complete aftermarket valvetrain upgrade to go past 5000! We did have a guy up this way that runs 500s @ he takes his to 7200rpm with the upgraded valvetrain & oiling modifications! It’s possible the head your working on is for Richards guy? Since there is only a few caddy engine guys! Anyway Richards videos show all the different stuff available for them! Tested on the caddy guys dyno & @ his shop! Maybe good info for you, to see what’s available, what works & what doesn’t! Please spend Sunday with your wife, out of the shop, winter is coming quickly enough, where you’ll have plenty of time to be in shop! Leaves already starting to change up here in NE! You don’t need to work yourself sick! I’ve seen people do it! Thanks again! Glad you found George Bryces tech talk Tuesday! 👍🏻👍🏻👍🏻👍🏻🏆🏆🏆🏆🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸

[@billythebake]

Hey man, your video is way too long Just kidding - I watch Jocko podcasts, and those things can run 4 hours Bottom line is, I really appreciate you taking the time to show your process on how you do this. Two thumbs up, keep them coming! By the way, since I haven't seen any restaurant recommendations from you recently, I'm going to throw one out to you: if you find your way down to Fort Smith, you might want to try Nuemeier's BBQ

[@dzozepe]

this was awesome.

[@jefferywalpole6406]

I first thought it was a aftermarket LS head.

[@ICONBADGTA]

You're not doing everything by hand are you? Man get you a CNC machine, that way you can do 1 port and copy the port in a cnc program and repeat it exact on the rest, keep your cnc files in house that way no one can get it. You could really get ya name out and be up there with Tony Mamo. Yeah i know CNC machines ain't cheap, but that is what ya need.

[@drivinwithdrew7676]

Sweet video man

[@22rockcrawler]

Cool video!

[@jimmyford271]

Good stuff

[@waynepegram3262]

This video is too short!

[@manitoublack]

gotta love a C500

[@TheProchargedmopar]

👍💪

[@jamest.5001]

I never knew Cadillac made performance anything, I thought they were truck motors basically! It looks like a chunk of aluminum!

[@ShawnDickens]

If you give out good info the videos can be several hours long, so do as you feel because the info is great.

[@motorosso3349]

Please avoid quick camera movements as after a while it can cause nausea. Try using a tripod if you can. You give good info, but your camera technique really sucks (flow bench joke).