Wow, those castings are really terrible! I'm pretty sure that a casting imperfection like that would be reworked before any present-day factory let it go on an engine.
I like his methods here. I do take things one step further though by getting a couple of "slave" head gaskets with the same crushed thickness as whats going to end up on the motor. I then bolt them on and put some slave intake gaskets of the same type being used, and torque the intake down. I trace the outside (top) surface along the intake outline around the entire manifold. Then you can take it all apart and you'll know exactly how and where the intake gaskets will be positioned.
The video is designed for beginners. As such Jim recommends this combination until one becomes more familiar with the process. Better to take one's time then to ruin a good set of heads because of aggressive porting.
Also, this is only a portion of the video, the rest of the video goes into pocket porting, head matching and several other topics.
80 grit and 50 PSI takes way too damn long. Other than that, not bad. should have gone into short side radius and bowl work though. Getting rid of slag and port matching doesn't do that much. The bowl work and the radius is where there power is.
Hi, I am rebuilding my first engine. Just off knowledge from when I was younger and grew up around it to tv shows and internet searching. I am rebuilding my 4.3lt V6. Is this something that is easy to do other then taking your time? Any other things I can do myself to save money?
Where is the Ear-muffs???? With a vacuum AND your air tool your gonna be deaf in no time! Amongst the tools mentioned ear/hearing protection is paramount!
do whatcha gotta do man this guy is great stuff. i didnt know that the ports were actually that much smaller then the gasket holes, makes you wonder why its made like that...
Thanks for the comment. I think the reason it wasn't made already matched is that it would be more expensive to manufacture and the automakers kep track of every penny. We appreciate you watching.
Yeah thats true, with any big selling production cars now they make it easy to break and not efficient as they can be. You got to get a cold air intake and spark amplifier and stuch but I never knuw that they would actually cast a big notch is the middle of the intake like that to create turbilance too!
But im porting and polishing my new motor before dropping it in my car before this augest. I have a 1987 toyota supra. My old motor had this done it to it also.
If your heads are in good shape - no cracks or other problems, porting them would give you better airflow and increase horsepower - that would certainly be less expensive. Thanks for the comment/question.
@ccgtvonline I am bout to port a set of 416 heads for my 5.0L 305 ci TPI camaro and I am wondering if there is any way to properly measure RPM so I can get the desired 10,000-12,000 RPM out of my grinder? I am using a 2.5hp air compressor with a 45gal. tank and a Harbor Freight cheap grinder.
i beg to differ on the subject of wanting very smooth ports just to stop turbulence....first off,it matters on if its injection or carburated..you dont want very smooth in carburated,causes fuel to liquidfy and you need the air to atomize threw turbulence...maters on what size valve you have,and intake your using..how long runners are for air/fuel.like a turbocharger..even when not spooling..it save gas by atomizing air/fuel(turb.) now injection abit diff.can be smooth have sensors for right a/f
Jim doesn't say not to use carbide burrs but that you should practice using them on a scrap head before attempting to use them on a good one. A carbide burr can quickly take off more metal than you intended if you're not careful.
Very true.I port,polished and matched the cases on my yz125;all aluminum and I used carbide bits my first time and no problems but I have used them for ALOT of other things which helps.
I think the purpose of this video is merely to clean up the casting flash and smooth the ports out. Not actually reshape them. And for the brief bit it is, it provides some good advice that makes it difficult to really screw up a head. On the other hand it provides the least gain possible per man hours spend on the heads. But I think its a great video for people to see.
that grit advice at the end is golden, take your time and start at 120 and don't take off too much excess, prepare to match the mating ports.
goodolarchie 1 month ago
GOOD VIDEO
Liamautomechanic 8 months ago
Wow, those castings are really terrible! I'm pretty sure that a casting imperfection like that would be reworked before any present-day factory let it go on an engine.
waveman1500 9 months ago
I didnt know Dr.Phil does head porting! hahah
streetphase 1 year ago 7
I like his methods here. I do take things one step further though by getting a couple of "slave" head gaskets with the same crushed thickness as whats going to end up on the motor. I then bolt them on and put some slave intake gaskets of the same type being used, and torque the intake down. I trace the outside (top) surface along the intake outline around the entire manifold. Then you can take it all apart and you'll know exactly how and where the intake gaskets will be positioned.
mine1username 1 year ago
The video is designed for beginners. As such Jim recommends this combination until one becomes more familiar with the process. Better to take one's time then to ruin a good set of heads because of aggressive porting.
Also, this is only a portion of the video, the rest of the video goes into pocket porting, head matching and several other topics.
ccgtvonline 1 year ago
80 grit and 50 PSI takes way too damn long. Other than that, not bad. should have gone into short side radius and bowl work though. Getting rid of slag and port matching doesn't do that much. The bowl work and the radius is where there power is.
Stickman53fe 1 year ago
great vid! i have a project for next week now :)
RicerEater1978 1 year ago
Nice video i want to give v8 head porting a go but take easy like you cheers.
TheDemonsarehere 1 year ago
Comment removed
LittleMan00707 1 year ago
Hi, I am rebuilding my first engine. Just off knowledge from when I was younger and grew up around it to tv shows and internet searching. I am rebuilding my 4.3lt V6. Is this something that is easy to do other then taking your time? Any other things I can do myself to save money?
LittleMan00707 1 year ago
great tips at school they dont like beards with dusk masks though
guess its better then nothing though :)
joelchils 1 year ago
i ported a 350 chev lastnight for the first time its very daunting
The98corolla 1 year ago
when you open the holes of the intake maniful you neeed open the holes of the valves to?
chivoelefante 1 year ago
Where is the Ear-muffs???? With a vacuum AND your air tool your gonna be deaf in no time! Amongst the tools mentioned ear/hearing protection is paramount!
RichardEllisxyz 1 year ago
Never seen castings that bad before.
pooperscooper71 1 year ago
you want to center the gasket first and bolt it down tightly. not loose ass bolts
minidakota318 1 year ago
@minidakota318 or bolt everything together on the block too see where it sits
minidakota318 1 year ago
HI #UN#, We'd love to re-post one of your vids. Let us know which one and we'll post & circulate it right away.
Harv.
carsearchli 2 years ago
Do you next have to do the same thing to the intake? Makes sense to me, anyway. If someone knows how about letting me know. Thanks.
michaelfarm 2 years ago
that a very pretty lamp lol
do whatcha gotta do man this guy is great stuff. i didnt know that the ports were actually that much smaller then the gasket holes, makes you wonder why its made like that...
thx for the vid! its very educational.
fournier4life 2 years ago
Thanks for the comment. I think the reason it wasn't made already matched is that it would be more expensive to manufacture and the automakers kep track of every penny. We appreciate you watching.
ccgtvonline 2 years ago
Yeah thats true, with any big selling production cars now they make it easy to break and not efficient as they can be. You got to get a cold air intake and spark amplifier and stuch but I never knuw that they would actually cast a big notch is the middle of the intake like that to create turbilance too!
But im porting and polishing my new motor before dropping it in my car before this augest. I have a 1987 toyota supra. My old motor had this done it to it also.
fournier4life 1 year ago
better for the manufacturer to cast it small and lose some power than to cast large and loose a part.
footyboyack 2 years ago
as far as a buget build of a small block 350...would ported heads be better and cheaper than brand new ones cuz damn they are expensive...thanks
JUSTINGRIFFIN1991 2 years ago
If your heads are in good shape - no cracks or other problems, porting them would give you better airflow and increase horsepower - that would certainly be less expensive. Thanks for the comment/question.
ccgtvonline 2 years ago
@ccgtvonline I am bout to port a set of 416 heads for my 5.0L 305 ci TPI camaro and I am wondering if there is any way to properly measure RPM so I can get the desired 10,000-12,000 RPM out of my grinder? I am using a 2.5hp air compressor with a 45gal. tank and a Harbor Freight cheap grinder.
TunedPortZ28 1 year ago
i beg to differ on the subject of wanting very smooth ports just to stop turbulence....first off,it matters on if its injection or carburated..you dont want very smooth in carburated,causes fuel to liquidfy and you need the air to atomize threw turbulence...maters on what size valve you have,and intake your using..how long runners are for air/fuel.like a turbocharger..even when not spooling..it save gas by atomizing air/fuel(turb.) now injection abit diff.can be smooth have sensors for right a/f
chucka59 2 years ago
ok so is it done in the same fashion as the exuast ports or do you just smoothe the suface of them
andrew0901280 2 years ago
Jim says, "the procedure is not exactly the same , and that it is outlined and detailed in the video. "
ccgtvonline 2 years ago
did you say you have to port the intake manifold as well to mach the imput to the output
andrew0901280 2 years ago
Yes, according to Jim Richardson, you do have to match the manifolds to the head so the flow is not interupted by turbulance.
ccgtvonline 2 years ago
very educational, thanks for the wisdom!!
ShaneT87 2 years ago 8
Thanks for watching. There's more to come.
ccgtvonline 2 years ago
i just started doing the exhaust ports on a pair Small Ford Heads
DeanMLFlame 2 years ago
This has been flagged as spam show
very nice video.
wagner03mustang 2 years ago
Seems easy enough! I understand the benifits it can provide. Very good video.
leadcs45 2 years ago
I have all of Jim's books.
danielwetpaint 2 years ago
Excellent video on the basics. i will have to start doing this in future rebuilds. East enough to do
ChevyToughRebel 2 years ago
Jim doesn't say not to use carbide burrs but that you should practice using them on a scrap head before attempting to use them on a good one. A carbide burr can quickly take off more metal than you intended if you're not careful.
ccgtvonline 2 years ago
a squirt of paint works in place of dykem
a couple short bolts/washer to hold gasket, instead of hand holding gasket works better.
no carbide? that's gonna take a LONG time to port.
even if this a novice diy vid
SchralperDotCom 3 years ago 2
Very true.I port,polished and matched the cases on my yz125;all aluminum and I used carbide bits my first time and no problems but I have used them for ALOT of other things which helps.
yamasubaruger 2 years ago
You are correct Sir ! What I do is hold the gasket up there or use bolts to hold it flat in place and then use a squirt of aerosol paint (any Color).
Then port to the edge.
Also the name of the paint at the start of the Vid scares me.
IF YOU CAN'T BEAT'EM THEN DYKEM?
danielwetpaint 2 years ago
he said he was using 80 grit. would something like 60 grit be a little better?
Trendyrapslut 2 years ago
@SchralperDotCom
I think the purpose of this video is merely to clean up the casting flash and smooth the ports out. Not actually reshape them. And for the brief bit it is, it provides some good advice that makes it difficult to really screw up a head. On the other hand it provides the least gain possible per man hours spend on the heads. But I think its a great video for people to see.
wjrneo2 1 year ago
very nice, looking for more info on head porting. this vid is informational enough as it gives general idea behind head porting. 5 stars and a fav
cnasterodon 3 years ago
Thank YOU!!
skynet000001 3 years ago
great video!
Tevolo52 3 years ago