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Have you ever had a head come back better than when it left? lol

This is probably a dumb question but I've been thinking of fitting a 2jzge vvti intake cam in a 1jzge vvti head. Is it possible? I'm running n/a so I want to play around and see what I can do just for some gains before I purchase a 2jzge bottom end. Is it possible? What all must be done? Is it worth it?

At one time I tried a full radius valve job and that hurt power for sure. I have done a straight 60 75 angle exhaust setup to reduce reversion and that works but that's a na thing and I make a larger contact area it all depends on use and fuel

You should let people know which business did this, that way they can avoid them.

🇦🇬 ⭐️⭐️⭐️⭐️⭐️. 🙇🏾‍♂️

People without talent taking over someone else's work and ruining it, anyway. Cheer up. Regards Goyo

Is welding the aluminium underside of where the seats sets not possible, so it can be re-machined? Copy cats suck, low life Mother Truckers.

does gsc make a spring for s55?

If someone "fixes" heads like that, they have no business touching them

Neanderthal 😂

3:56 is it safe to do and can it handle hi REV ?

2-Port/Integrated is used on some BMWs for emissions in Europe

😂😂👌 classic, well done man

so if I was to buy a OEM gte short block I could grab a cheap GE head to build for it?

Would of hit like button but didn't show before and after HP...

Can this be done to a b16 cyl head?

Let's say for example that I already bought unnamed spring A, do you think they would be useable if I installed them with the OEM locks and not the supplied locks?

Much harder than it looks!

Do you have any experience with an M54 head? Wondering if any gains are possible… already forced induction and wondering if I gasket match the exhaust if there’s anything to be had. Love your stuff Dave!!

Hah! I had to pause this and check the day it was published! Hah!

I would like to see you do something with a 12v vr6

What gaskets did use use for the port matching

Hey are you looking to do a CNC on a n54 head one of these days?

Definitely want to see the progress and the eventual 8 second pass

David Localio, have u ever considered staggering ur intake and exhaust valve sizing to make swirl? Would it be worth it?

I love this stuff!

Would like to see more intake manifold porting, luv u bye bye

hi . you are ported a Duratec engine ?

Got a link or something for p1 hardware?

Amazing sharing as always 🫡🫡

So, recently the head gaskets on my SOHC Subie started to leak (as they do). I did some mild port work before sending the heads off for a resurface and nice fresh valve job. Headgames were about $200 more than one of your competitors - so I chose the competitor. That was a mistake. They did a beautiful job resurfacing the deck; and the valvejob looks good (and seals). They did a good job tipping the valvestems. When I assembled my cams and set lash - all 16 were consistently about 0.020" loose, suggesting they actually translated the material lost to grinding valves & cutting seats into the material removed off the valvestems. However, the $100 I paid them to clean the heads was a total waste. There was still black Boelube funk in the ports as well as other grime from 180k miles on the heads. They came back assembled - but I had to re-disassemble them to **actually** clean them - and then re-re-assemble again. The heads came back wrapped in a couple layers of saran-wrap. Luckily they re-used my very nice boxing with custom liquid-foam inserts. The communication was almost non-existent. I know automotive machine shops are usually not very responsive; and usually overpromise/underdeliver in terms of delivery dates - but it took 8 weeks (after promised delivery date) to finally get them to answer emails/calls and get the heads shipped out. Last, when I DID finally get a hold of them and was time to pay - they wanted 2X more than the published prices on the "services" page of their website. I had to argue/negotiate to get them to come close to matching their published prices. In the end, my choice "saved" me maybe $50. Luckily, the subie is back up and running - even feels like it's got a little more oomph above ~4000rpm... But I won't make this same mistake again. Keep up the good work.

You haven't tried porting at 10/10ths until mistakes happen.

🇦🇬 ⭐️⭐️⭐️⭐️⭐️, 🌟. 🙇🏾‍♂️

If you are not learning thru falls that means you are not progressing

If head games will be a collage i think I graduate this year with the top of the degrees 💪🏾💪🏾💪🏾💪🏾💪🏾 there’s any where i can send you some pics. And videos 😂😂😂😂🤔❓

Thinkin’ this reveals a part of things people don’t consider. The requirement to reverse engineer, things like datums and locations, that aren’t found in manuals and other references, to build in accuracy / compatibility, before starting to make chips, if y’all expect to do it more then once.

Never give up! One has to get wet sometimes to cross the river 👍🇺🇸🏁🏆 muttastang

Cnc 4g63 evo heads

It doesn't sound like you to just assume! Being with Don Schumacher racing they do a lot of assuming here to but I just look at them a little crazy.

Congrats on the CNC! Will it work better than hand porting when it comes to pocket porting 2jz heads ?

arent u loosing too much compression by grinding away the chamber area?

When will 4g63 sales be?

you are a legend dave

great video. what do you think is the best option for installing a cam position sensor on a ge head without one?

I'm just here planning what u might want to do with my mk2 supra. But I think I still want that 1j head for the sound. I only really want between 300-450 hp though 😌

Ha! really good video!

How do you match custom piston heads to the combustion chamber to get your target compression ratio? Or do you?

🇦🇬 ⭐️⭐️⭐️⭐️⭐️. 🙇🏾‍♂️

One seriously good looking head. Nice work. Keep the videos going

Have you used the ferrea hollow valves in a build yet? I believe they 20% lighter than std valves but also cheaper than titanium valves. If so would you recommend them?