Better cast parts than OEM?

[@hpa101]

What are your thoughts on aftermarket cast parts? 🔥 Building a fast car? Get $400 OFF the all-inclusive VIP online course package deal: hpcdmy.co/izm ✊50% OFF your first online engine building course. Enrol now: hpcdmy.co/gjb

[@RandomlnternetGuy]

What an exciting time to be a car enthusiast! Revising OEM engines.

[@s0ckpupp3t]

If PRP are backing the EJ they must see it as having serious performance potential

[@Chilicharger665]

@@s0ckpupp3t they see that Subies blow up all the time and there is lots of money to be made lol

[@fantastic1921]

It does!

[@burtonporter8437]

Or they see $$$ because they are turds lol

[@danwiththe8647]

Herman is one of the best things in the car community, all this stuff is incredible

[@ziggyziggler]

Pushing the envelope of what a bottomless money pit can be in terms how how bottomless the bottomless moneypit can possibly be.

[@hpa101]

Take a deep breath and dive on in! I saw a true crime series that reckons people hide the bodies of dead bank accounts at the bottom 😂 - Taz.

[@gordowg1wg145]

Not really, if you're at the level that can use the heads. You're trading a higher initial cost, which isn't really that much higher as a percentage of a build, for heads what will last and be reliable AND give better breathing. Look at it this way, even if you're spending double, and "only" get double the life, you're saving on a full engine rebuild and the time and money that'll cost. If the modified OEM heads fail during qualifying or practice (depending on the type of event), that'll normally mean wasted travel time and all those costs, too, unless you've a spare engine and the time to swap them.

[@doubletee4391]

thanks for actively supporting the platform!!

[@gordowg1wg145]

Cool, with precision 3D printed cores being available for some time, I'd expect some other very smart folks will be working on their own unique requirements. What I'm REALLY looking forward to is some really smart folks casting the head and block as a unit, with it bolting seperately to a 2 piece crankcase assembly, like engines were cast way back in the early days. With no heade gasket, there can't be a problem with them leaking or heads lifting. With no requirement to pass the big end of the 'rod through the bore that can be made stronger and/ or use larger fasteners - the diesel chaps would benefit there. The upper crank-case can be stronger as the webbing isn't going to require piston reliefs and it can be more rigid and provide a lot more "meat" for the main studs, as can the lower crankcase - with the potential to incorporate the sump assembly for further rigidity - or just being left as a simple girdle.

[@brokeafengineerwannabe2071]

PRP be doing everything nowadays, that's great

[@notsponsored103]

Is it worth thinking about? Hell yeah! Can't wait to see it flow tested, dyno'd, and stressed in a race car. Someone get a set to Dave Localio!

[@krusher74]

he said its can flow 420cfm, thats your test done.

[@neilr1556]

Herman I know you’re reading… SR20VVL heads man. We’re running low 😅

[@albertt7784]

Bolt on SR20VVL heads please!

[@CneyTMS]

I'm wondering what a head is going to cost compared to a new head (from Subaru). This head would seem like going NA with ITB's screamer build would finally make more sense.

[@RandomlnternetGuy]

@@CneyTMS that would be WILD

[@WillfulMirror8]

4800 for bare heads and 8900 for assembled (valves, springs, probably not cams)

[@Mr_jz_12]

@@WillfulMirror8 6,600 au$ bare, 11,660 aud$ fully prepped

[@hpa101]

You will have to check with your local OEM dealership for their price, but you can see what PRP are offering in AUD here: hpcdmy.co/prpej Crest CNC do a great job on anything they do, so for those with a need for heads like this in their perfomrnace application I'm sure they won't be disappointed. If you want a bit more insight into what goes into the production of aftermarket cast parts and the improvements that can be had over OEM, check out this podcast episode with Chris from Crest CNC: www.hpacademy.com/blog/107-billet-isnt-everything-the-rise-of-aftermarket-cast-engines-podcast/? And this one with Herman from PRP: www.hpacademy.com/blog/086-forget-billet-for-a-second-whats-with-aftermarket-cast-blocks-podcast/? Great to listen to during a commute, road trip or while tinkering in the garage - Taz.

[@silentk59]

Hopefully they re-route the exhaust port to have a direct flow vs a 45 degree angle, causes alot of the overheating issues with those corresponding cylinders. Wrote this before the end of the video haha way to go guys!

[@mythos000000025]

EG33 heads next! Great block and engine but REALLY could use some head design...420cfm 3.3L turbo....yes please

[@Handcockjohnny]

100% the EG is so lacking in aftermarket parts would love more options always wanted to compound turbo and destroke one.....

[@mythos000000025]

@Handcockjohnny it has the same 79mm stroke as the EJ. High revving is limited by the springs, cams and timing belt...all of which are easily sourced...save maybe the camshafts. Gates racing timing belt, pick a good dual or triple spring and a custom grind. You'd definitely want a dry sump setup with might actually prove a bit more difficult but maybe not. The do use the EG33 in sand dune racing buggies making 1000hp with sleeved blocks. Subie performance can close deck the block as well

[@AmirPomen]

Cant wait to save enough money and get my hands on pair of this

[@MRworldEtIkA]

never thought about cast for being so consistent. now i know.

[@krusher74]

OE car companies arnt running an Billet CNC parts. people just get obsessed with a tech because it worked out or a race car once.

[@yasirrakhurrafat1142]

@@krusher74 are you saying cast is now viable or billet? I don't know what billet is btw.. I'm assuming forging and CNC ing is what billeting is?

[@ZoneKei]

Awesome. I wonder if they'll recast the EJ blocks too once these heads are no longer the weak point.

[@R00567]

@PRP @hp101 - can you guys please ask ARTEC to make a cast exhaust manifold for the EJ series engines 🙏

[@michaelnoyes4817]

It would be good to see the casting process that goes into making some of their products

[@hpa101]

You can't see it, but there is a lot of great detail in this podcast with Chris from Crest (the company that makes these heads) www.hpacademy.com/blog/107-billet-isnt-everything-the-rise-of-aftermarket-cast-engines-podcast/ Hope you enjoy it! - Taz

[@derricksteffen3722]

When will the crest Cast EJ block be available?

[@hpa101]

The link in the description hasn't been updated for a minute going by their old date on there, but fire PRP and email, you might be able to get some now 😎 - Taz. www.platinumracingproducts.com/

[@njdorset1050]

@hpa101 do you have any experience with the direction injection dohc 4g64 engine?

[@fightfanian]

Those exhaust ports are GARGANTUAN, looks like periferal rotary exhaust ports.

[@matthewold5816]

thats fucken sick.

[@frederickcook87]

Nice 👌🏾👌🏾

[@clay1991]

Great vid

[@hpa101]

Cheers for the support, glad you enjoyed this one 😎 - Taz

[@NAS_Performance]

These are Crest CNC’s cast cylinder heads.

[@hpa101]

If you want to get into the nitty gritty check out the podcast episode with Chris from Crest - www.hpacademy.com/blog/107-billet-isnt-everything-the-rise-of-aftermarket-cast-engines-podcast/ Hope you enjoy it 😎 - Taz

[@NAS_Performance]

@@hpa101oh yes I am well aware, just PRP pretty much claimed the heads as theirs in this video, instead of saying they just sell them for Crest.

[@hpa101]

I'm sure it wasn't Hermans intention to not mention that as something sneaky. Crest are mentioned in the description and on the PRP website link there too and has been mentioned in previous a previous interview with Herman regarding other products Crest CNC produces too, so don't hold that against PRP and whatever partnership they have with Crest CNC 😎 Hope you enjoyed the chat and podcast, we have an interview with Jerry from Crest CNC at the PRP stand from this event too but it's not live yet that get's into some of the CAD side of projects like this - Taz.

[@DaveBrown-t7w]

Interesting

[@0643052]

so good

[@matthewmaca6675]

Smedia made his h6 turbo at the wrong time if they are doing the heads for it

[@MspecUSA]

The eg platform is Lowkey a dud at this point. The ez30/36 has come a long way in part’s development lately.

[@brandonhaywood3391]

Nice like big boy v8s

[@filepz629]

🫂

[@bowedfloor]

No. No subaru is worth it. Ever. I say this as a modded subaru owner. There is nothing redeeming about the chassis or the motor. Slow to spool, outrageously expensive to mod, crap ECU, firewall flexing, Go faster for cheaper in an Evo. Make your subaru reliable by swapping in a K series. Subaru owners are just a bunch of suckers with deep pockets.

[@Kaos2244220011]

Whoever did their artwork, the 𓂸 Easter egg that’s hiding behind them as they chat is 🤌

[@hpa101]

Sneaky sneaky 😂 - Taz.

[@liamreich8486]

i was going to mention something like that myself, but i thought i had better read the comments first😜