Hey Eric, Tim here, ya know i REALLY dig this critique/flow service you offer, its quite educational, and we learn something EVERY TIME!!.....homie did pretty good overall.....he shud be happy, i just enjoyed watchin this one, neat info......super cool, TY sir, hope head owner knows he aint YOU, but he didn't do to shabby......maybe he's listened to you b4, and tried his best to do what you reccomend....i dug the whole vid!!!.....PEACE my brother!!
Eric I think it’s great that you take the time to help people out and show them what they need to focus on. Your work is amazing and your attitude is great. Love these types of videos.
Great video! Your approach, honesty and critique are spot on and treats the individual with respect, and as a MATURE learner. You will learn more from failure then you will success, if you are willing to learn. Some of the comments I see on this video are just plain disrespectful and small minded. Small mindedness and poor manners are why you will not learn from your failures. Eric... Thanks. I appreciate your polite candid critique, your willingness to share tradecraft, and humility to understand others have different opinions, or may know more than you. This video in particular gave me pointers on how to check the work of the people I higher to do the performance improvements I cannot do on my engines. Keep the videos coming!
And after learning that a rougher texture makes a port behave smaller I'm going to try going extra rough on a set of heads that are considered pretty large for the size engine. Certain parts smooth of course, like the short turn.
🔔😎🇺🇸 21:30 It's often been said... 80% of the gain is from the first 20% of your time. Going for the rest of the 20% gain takes TIME. And... The greatest port restriction is the partially closed valve. 🤔🤔
Thank you. You did my heads. Great job. Even though I decided not fix some of the bowl issues it still competes with this head . And he went to the bigger valve. Mine out flow at the high end and beat it down hard on exhaust. As I told you before I will use you again. Soon too.
Fantastic video. The last time I ported heads, I was reading a magazine to get a general idea. When I did the heads, I always did the intake manifold at the same time. I did 302/351 heads with stock/Cobra intakes and I would reshape the first runners with the most length and curve by using Metal Lab as a filler to keep the runner diameter the same. Didn't know what I was doing but the good news is that with a stock head and intake port, it was very obvious that the cars made good power as the walked away from the car they lost to the week before.
Some factory castings are so dam bad if you fake your way through some basics you will probably pick things up..which always feels good. Gotta start somewhere!
I'm doing some DIY porting on iron Buick 350 heads. I need to get the proper measuring device. But What I've been doing cleaning up the absurdly chunky casting, matching the ports, and I'm trying to mildly reshape the pocket. I'm not trying to reinvent it but rather just make the iron not so dang crooked. I'm also tidying up the chunky iron valve guides.
I always use straight Newen/Serdi carbide pilots for seat cutting. It eliminates all the problems of tapered pilots. Although tapered pilots can be used if used properly. I never push in tapered ones hard. A light touch of tip of the finger should do. As pushing a tapered one hard in will make the pilot being bent so the seat runs out of centre.
I just found your channel, and… awesome. Your porting info/critique, seems pretty spot on. I have built lots of motors, and have been a mechanic for a long time. I will be subscribing, and will definitely be checking out other vehicles. I have every belief that with the attention to detail in this porting critique, I will definitely be looking for a video about why it’s so important to also port match an intake to heads as well. Good stuff!
That’s some very good information. It would be interesting to see where the flow starts dropping off past .600 lift. While that’s not desirable for a full race job, there’s a lot of street applications where maximizing the flow at or before.600 is a good thing.
That was really good Eric. I think you were extremely fair and I hope your customer appreciates the wisdom you tried to impart. One question about throat sizes, is there a rule of thumb of how much larger the bowl should be vs the throat? Say 5% 10% etc? Thanks!
Thank you Eric for your detailed explanation on the porting! I'd like to hear you opinion about port floor. Is there any occation you'd justify lowering the floor of the intake?
Gretat job with the review. I think that’s super helpful to the owner of the heads and any other amateur porters learning or wanted to do a little porting on their own. And it’s always better to go a little less with porting then too much which is what you said.
I just did a set of these and after initial measurments decided to keep the 2.02. I dont see why i would step up valve size before i could get decent bowl to valvesize percentage. Only thing is that little dip on the short side is not completely removed. I left the bowl at 96.5% and did not go through the bolt hole
Man wric. You would cry to look at a stock set of dodge 318 heads just warming up a 2bbl 318. Mild cam, ported intake. Ported heads headers. And 2bbl carb. Running about 9.3 static compression now.
Hey Eric I have a question about a set of cylinder heads I ported plus a good valve job to complement the throat bowl and chamber with my antique and I mean antique buddy hall toledo orbital seat grinder I had to work some magic . Anyhow they are ford racing / motorsports svo e303 head tbt the head that should have came on fox and later mustang 5.0 my question to you is have you ever ground on these they are made out of some serious spotty aluminum hard as he'll in spots vise versa I cross grind lift grind cut alot with the aluma burr also cross cut carbide with a 60 grit finish in port and burr finish buy throat but looks uneven like I never cut a set of heads in my life I know you won't remember me but we met threw a customer of both our some time ago love the Chanel thanks for your knowledge
I have a question for you. On a stock car motor with stock heads and 2 bral carburetor are you better off going bigger on the exhaust valve ? Thank you for your video.
These heads will go 295/300 with a 8mm stem, 7.3mm undercut. 2.02 valve at 90.5% . Those are the enforcer valves. Ported to 205cc , checked/poured. I use spiers old manometer and pst plates,calibrated bench,real numbers. 4 angle vj and some porting. Out of the box 260/270cfm
Got a set here I did in 2020, 2.02 valve size,11/32 stem roughly 308-310 int 23x exh in by .600 carry to .700 or better. Eliminator like low-mids. Expected results to be worse...Superflow 600 4.125 bore no pipe on ex These out perform my ported Dart Conquests at 230cc
I’ve always wondered what would happen if you took that center wall out of the intake ports and let both cylinders breathe from one big port just curious?
On the chevy 250 inline 6 it actually helps, because the "divider" is a monstrous iron pillar for the head bolt. But on a V8 you lose your air velocity on naturally aspirated.
@@gordocarboyes but with modern technology we can see if maybe taking off half front portion of the wall off or taking it back a 1/4 in or whatever just for testing purposes I believe boosted it will benefit I may be wrong
You ever port turbo diesel engines, or review turbo diesel heads? I've got an om606 I'm thinking about porting, which is a high tumble flow rather than high swirl (which is modern diesel head style).
@@WeingartnerRacing 🥲 okay lol. Always worth asking. The way this engine works is much more similar to a turbo gas engine... Just 22:1 compression ratio with a prechamber.
It's just my guess but I don't see why that would matter. I believe his percentage numbers were "general" numbers and I would guess that percentage ratio is flowed without valves to evaluate the port itself....but I'm not an expert by any means.
No reasonable person would ever "port" diesel heads. It is against the law to port Diesel heads. Check Federal Law 15.840 section A; thru section B. "No reasonable person, with or without knowledge, commercial or private, employed or retired of service; shall alter or attempt to alter or subsequently change the "know profile" of any engine, motor, combine, farm equipment, road equipment, train materials or sbsidiary of: in any attempt; nefarious or not; to increase flow of any and all; not to exclude; but without elimination, said "diesel head; valves, intake chamber; exhaust chamber; or ANY related component of said "diesel" head in combination of an attempt to increase performance without breaking the law. (section b) The law being the Federal Law of these United State of America and all known attributary countries and allies."
@ I didn't write the law.......but I darn sure follow it. IF you want' to modify something; buy a model boat. If you want to do work, buy a diesel and do work. THERE is no need to modify a diesel. They have more than enough power as is.
You don't test stuff you don't have fixtures for do you? I want to get a head flowed that was done for me many years ago that I've never installed, but I don't know what the flow is, so I can't begin to try and spec out cams. It's a DOHC 4-banger.
have you heard of are know larry meaux from louisiana i think the one of the best head porting and race engine builder ever watch big chiefs vrds hes using them on jackies car i personally know him also look up hard head racing my brother in law that recenly passed away
Just remember, these tiny tiny details, like the most slight step you can barely feel with your nail in the chamber...... It's doing so little of an improvement it doesn't matter. People get way too crazy with these tiny improvements. Do your port work, give it a little tickle around the place to clean it up, then put them on your engine. Don't spend an additional 2 days fucking about
Sad that most vids of porting are the blind leading the blind over and over. They go right to the guide and start hogging the pee out of the pinch and exhaust port. ugh Scary thing is many of these guys charge others to destroy their heads, put some username that sounds like a bus. but will never be one.
Metal reflects differently under lighting in camera. Sometimes gold looks like silver. And the opposites. Sometimes silver or just cast iron that’s been etched will look gold. Or brass.
Hey Eric,
Tim here, ya know i REALLY dig this critique/flow service you offer, its quite educational, and we learn something EVERY TIME!!.....homie did pretty good overall.....he shud be happy, i just enjoyed watchin this one, neat info......super cool, TY sir, hope head owner knows he aint YOU, but he didn't do to shabby......maybe he's listened to you b4, and tried his best to do what you reccomend....i dug the whole vid!!!.....PEACE my brother!!
Eric I think it’s great that you take the time to help people out and show them what they need to focus on. Your work is amazing and your attitude is great. Love these types of videos.
Great tips Eric, as always thanx for sharing ur hard earned knowledge with us amateur gearheads😅
Great video! Your approach, honesty and critique are spot on and treats the individual with respect, and as a MATURE learner. You will learn more from failure then you will success, if you are willing to learn. Some of the comments I see on this video are just plain disrespectful and small minded. Small mindedness and poor manners are why you will not learn from your failures.
Eric... Thanks. I appreciate your polite candid critique, your willingness to share tradecraft, and humility to understand others have different opinions, or may know more than you. This video in particular gave me pointers on how to check the work of the people I higher to do the performance improvements I cannot do on my engines. Keep the videos coming!
You would be amazed what you can pick up by just gasket matching heads/intake. Keeping intake side “ruff” is a good thing
And after learning that a rougher texture makes a port behave smaller I'm going to try going extra rough on a set of heads that are considered pretty large for the size engine. Certain parts smooth of course, like the short turn.
Nice evaluation Eric.
The customer did a great job.
Thanks for sharing.
🔔😎🇺🇸
21:30
It's often been said...
80% of the gain is from the first 20% of your time.
Going for the rest of the 20% gain takes TIME.
And...
The greatest port restriction is the partially closed valve. 🤔🤔
great video eric, the guy did a great job .
Beautiful explanation Eric , tell this guy he done nice work
Thank you. You did my heads. Great job. Even though I decided not fix some of the bowl issues it still competes with this head . And he went to the bigger valve. Mine out flow at the high end and beat it down hard on exhaust. As I told you before I will use you again. Soon too.
Hey Eric, I called and left a message a few weeks back, I have a 317 ls head I want to have flowed and critiqued on video
Email me if you can or call Monday. I get a lot of calls and emails.
They're paying you to criticize. If you treat them with kid gloves then they'll never get better. Good premise for a video and a really cool service 👍
Heck, women do that and get 200 an hour for that chit! haha
Married men get nothing!
Says a lot about your character Eric! Thanks for showing this.
Great information, excellent explanations, thanks for doing this.
Eric: Thanks for explaining the porting of bowls for the intake and the runners. Good explanation.
I will practice doing my own heads. These videos are a great help.
Nice evaluation with tons of information. You have a lot of knowledge and thank you for sharing.
Fantastic video. The last time I ported heads, I was reading a magazine to get a general idea. When I did the heads, I always did the intake manifold at the same time. I did 302/351 heads with stock/Cobra intakes and I would reshape the first runners with the most length and curve by using Metal Lab as a filler to keep the runner diameter the same. Didn't know what I was doing but the good news is that with a stock head and intake port, it was very obvious that the cars made good power as the walked away from the car they lost to the week before.
Some factory castings are so dam bad if you fake your way through some basics you will probably pick things up..which always feels good. Gotta start somewhere!
I'm doing some DIY porting on iron Buick 350 heads. I need to get the proper measuring device. But What I've been doing cleaning up the absurdly chunky casting, matching the ports, and I'm trying to mildly reshape the pocket. I'm not trying to reinvent it but rather just make the iron not so dang crooked. I'm also tidying up the chunky iron valve guides.
I always use straight Newen/Serdi carbide pilots for seat cutting. It eliminates all the problems of tapered pilots. Although tapered pilots can be used if used properly. I never push in tapered ones hard. A light touch of tip of the finger should do. As pushing a tapered one hard in will make the pilot being bent so the seat runs out of centre.
Another great one! Wish guys would send you more to do, really liked this one.
Thanks Eric! Lots of info there!
I just found your channel, and… awesome. Your porting info/critique, seems pretty spot on. I have built lots of motors, and have been a mechanic for a long time. I will be subscribing, and will definitely be checking out other vehicles. I have every belief that with the attention to detail in this porting critique, I will definitely be looking for a video about why it’s so important to also port match an intake to heads as well. Good stuff!
Thank you
@@WeingartnerRacing opinion overall of the casting quality of the real Dart over the knockoff heads? Placement/location of holes, guide quality etc
That’s some very good information. It would be interesting to see where the flow starts dropping off past .600 lift. While that’s not desirable for a full race job, there’s a lot of street applications where maximizing the flow at or before.600 is a good thing.
That was really good Eric. I think you were extremely fair and I hope your customer appreciates the wisdom you tried to impart. One question about throat sizes, is there a rule of thumb of how much larger the bowl should be vs the throat? Say 5% 10% etc? Thanks!
Thank you Eric for your detailed explanation on the porting! I'd like to hear you opinion about port floor. Is there any occation you'd justify lowering the floor of the intake?
I really like this type video!
Gretat job with the review. I think that’s super helpful to the owner of the heads and any other amateur porters learning or wanted to do a little porting on their own. And it’s always better to go a little less with porting then too much which is what you said.
Really nice video with good info 👍
Great info! Thanks Eric
Think a great video would be how you port exhaust ports on BBC heads? Thanks sir
Good stuff. I'm doing the same heads.
I just did a set of these and after initial measurments decided to keep the 2.02. I dont see why i would step up valve size before i could get decent bowl to valvesize percentage. Only thing is that little dip on the short side is not completely removed.
I left the bowl at 96.5% and did not go through the bolt hole
The throat in stock form in these is pretty huge for a 2.02. 2.05 would be much better even if you change nothing else
@@roberthollinshead2325 i was right at 90% out of the box
Very inspiring knowledge
Man wric. You would cry to look at a stock set of dodge 318 heads just warming up a 2bbl 318. Mild cam, ported intake. Ported heads headers. And 2bbl carb. Running about 9.3 static compression now.
Thank you for your knowledge and video's USA 🇺🇸 USA 🇺🇸
Been a good set of heads for me. I did clean up the chambers.
Why when almost nothing gained.
@@hankclingingsmith8707 ?. Brand. Model. Not the exact ones in the video. Please keep up.
Damn, after every video I sure do wish you would port cast iron heads ;)
At the end of your video you mention making
the bowl bigger. The problem is if you leave a lip there, it will become a problem with air flow.
Not if you blend it properly
Great Details Info thanks
Great content 👌🏻
Especially with port restrictions because of net size and flow of port after porting ie. bb crys. work over those chunky valves = more flow, right?
What is the best flowing head stock between the Ford GM and Chrysler
Chevy BBC rec port, Boss 429 or 426 hemi. Its pretty close between them.
For newer heads gen3 hemi 6.4 heads rule all, its not even close.
Hey Eric I have a question about a set of cylinder heads I ported plus a good valve job to complement the throat bowl and chamber with my antique and I mean antique buddy hall toledo orbital seat grinder I had to work some magic . Anyhow they are ford racing / motorsports svo e303 head tbt the head that should have came on fox and later mustang 5.0 my question to you is have you ever ground on these they are made out of some serious spotty aluminum hard as he'll in spots vise versa I cross grind lift grind cut alot with the aluma burr also cross cut carbide with a 60 grit finish in port and burr finish buy throat but looks uneven like I never cut a set of heads in my life I know you won't remember me but we met threw a customer of both our some time ago love the Chanel thanks for your knowledge
Seen some strange variances in old factory alum heads, even in Chevys too.
🇦🇬
What bowl percentage would you recommend for a turbo application.
🙇🏾♂️
I have a question for you. On a stock car motor with stock heads and 2 bral carburetor are you better off going bigger on the exhaust valve ? Thank you for your video.
No
These heads will go 295/300 with a 8mm stem, 7.3mm undercut. 2.02 valve at 90.5% . Those are the enforcer valves. Ported to 205cc , checked/poured. I use spiers old manometer and pst plates,calibrated bench,real numbers. 4 angle vj and some porting.
Out of the box 260/270cfm
Got a set here I did in 2020, 2.02 valve size,11/32 stem roughly 308-310 int 23x exh in by .600 carry to .700 or better. Eliminator like low-mids.
Expected results to be worse...Superflow 600 4.125 bore no pipe on ex
These out perform my ported Dart Conquests at 230cc
How much of the gains over the Enforcer would you say the 2.08 valve gained?
You should do a set of SBC 601 305 ho heads
I’ve always wondered what would happen if you took that center wall out of the intake ports and let both cylinders breathe from one big port just curious?
Bad idea, dont do it! Seen "pros" in the 80s do that with camel hump heads, destroyed them.
On the chevy 250 inline 6 it actually helps, because the "divider" is a monstrous iron pillar for the head bolt. But on a V8 you lose your air velocity on naturally aspirated.
@@gordocarboyes but with modern technology we can see if maybe taking off half front portion of the wall off or taking it back a 1/4 in or whatever just for testing purposes I believe boosted it will benefit I may be wrong
Eric Weingartner, if I were to do a ss sbc head, what would u suggest for bowl percentage?
They should tell you what intake they’re using and give you the cam specs so so you can give better advise
Victor JR Bowtie ported to a 1206. Cam is 266/268 @ .050 solid roller
How much would you charge to port gm 049 oval port heads and where are you located
$10,500
I have a set of profiler 235 cc heads That I need to have ported. How far backed up are you?
With a 2.08 valve there should be head bolt sleeves because you blew out the bowl
You ever port turbo diesel engines, or review turbo diesel heads? I've got an om606 I'm thinking about porting, which is a high tumble flow rather than high swirl (which is modern diesel head style).
No
@@WeingartnerRacing 🥲 okay lol. Always worth asking. The way this engine works is much more similar to a turbo gas engine... Just 22:1 compression ratio with a prechamber.
It is a dual overhead cam. 4 valve per cyl and aluminum.
Correct, and it's tumble flow. It would be identical to porting a gas engine with a power adder.
for that valve to throat percentage shouldn't we account for the space the valve stem and shape take up in order to be accurate ?
It's just my guess but I don't see why that would matter. I believe his percentage numbers were "general" numbers and I would guess that percentage ratio is flowed without valves to evaluate the port itself....but I'm not an expert by any means.
Do you do anything with harley davidson heads❔️
Eric, will a dart 230 ported by you and keeping the 2.08 intake , can it beat a AFR 227 ??
Maybe if it’s the platinum
Can you make video about diesel head porting?
I don’t port diesel heads
No reasonable person would ever "port" diesel heads. It is against the law to port Diesel heads. Check Federal Law 15.840 section A; thru section B. "No reasonable person, with or without knowledge, commercial or private, employed or retired of service; shall alter or attempt to alter or subsequently change the "know profile" of any engine, motor, combine, farm equipment, road equipment, train materials or sbsidiary of: in any attempt; nefarious or not; to increase flow of any and all; not to exclude; but without elimination, said "diesel head; valves, intake chamber; exhaust chamber; or ANY related component of said "diesel" head in combination of an attempt to increase performance without breaking the law. (section b) The law being the Federal Law of these United State of America and all known attributary countries and allies."
@@benburnett8109 Its also against the law to saw the cats but folks do it all the time because they like better gas mileage.
@@benburnett8109 wait what the fuck lmao
so any diesel has to be stock in america AHAHAHAHAHA
@ I didn't write the law.......but I darn sure follow it. IF you want' to modify something; buy a model boat. If you want to do work, buy a diesel and do work. THERE is no need to modify a diesel. They have more than enough power as is.
Is this what the summit racing 200cc head is?
What’s the best size valve for that head if you’re going to port it?
The biggest you can get
You don't test stuff you don't have fixtures for do you? I want to get a head flowed that was done for me many years ago that I've never installed, but I don't know what the flow is, so I can't begin to try and spec out cams. It's a DOHC 4-banger.
Nope can’t flow it.
@@WeingartnerRacing Darn. Thanks anyways. I keep looking.
what engine is it?
@@aylahughes9185 essentially it's the Chrysler 2.2, but it's the Maserati DOHC 16V head I am needing flowed.
ah nice i have a dodge lancer Shelby lol.@@rocketsurgeon11
have you heard of are know larry meaux from louisiana i think the one of the best head porting and race engine builder ever watch big chiefs vrds hes using them on jackies car i personally know him also look up hard head racing my brother in law that recenly passed away
Larry Meaux passed away, when?
he is still alive lives in my hometown
We know you want to say it, ProComp Electronics, Speedmaster.
Best way to contact you?
Just remember, these tiny tiny details, like the most slight step you can barely feel with your nail in the chamber...... It's doing so little of an improvement it doesn't matter. People get way too crazy with these tiny improvements. Do your port work, give it a little tickle around the place to clean it up, then put them on your engine. Don't spend an additional 2 days fucking about
Sad that most vids of porting are the blind leading the blind over and over.
They go right to the guide and start hogging the pee out of the pinch and exhaust port. ugh
Scary thing is many of these guys charge others to destroy their heads, put some username that sounds like a bus. but will never be one.
Will you evaluate a cast iron head? 😆 🤣
Using some dycom also helps to get things even inside the port
chineese taking over everything!! next they are gonna be porting them
too that should be interesting
So wait, I can butcher a head and can send it in and you can tell me what i did wrong?
🤣 perfect
It ain’t criticism if it’s constructive suggestion…
He should give you more details of the combo..... then you Tickle up one, Flow, he copies and makes better power than what he did at this point...
$40 to flow an individual head ?
Yes one cylinder on it
Why does the thumbnail make it look like it is Brass?
Metal reflects differently under lighting in camera. Sometimes gold looks like silver. And the opposites. Sometimes silver or just cast iron that’s been etched will look gold. Or brass.
It's the lighting- I was wondering the same thing too.
You can tell by the pushrod pinch they weren't going to reach 300 I guessed 285 I was close
Promo'SM 🙄
💀
B-
As much as I'm interested in getting more information from you I'm also getting tired watching such long videos) But thanks anyway...
Learning takes time. I would rather give you a full picture instead of little snippets like tik tok.
@@WeingartnerRacing Most of us appreciate that. Thank you.
Agreed to learn properly takes a lot of time. Too many 5 minutes of knowledge experts in the world today. Appreciate the detail!!!
Pete and Repeat made a porting video. Pete fell asleep and didnt subscribe,....
(had to!)
You bit about the bush before going to the point. Just explain porting and polishing. Period!
I didn’t do the video for you I did it for the guy who sent the heads in. You need to have patience for head porting.
go make your own video then?
Thank you for your knowledge and video's USA 🇺🇸 USA 🇺🇸