I am contemplating this HEMI build I started – and I am down to two Cylinder head choices the first being the INDY 426-HiPo head which is the re-designed Canfield head with a larger intake valve and intake port and the other head choice being the Edelbrock Victor Jr. Hemi Heads – The engine will be a 572 4.5 bore x 4.5 stroke with a on the “mild side” mechanical roller and around 11-1 compression – most likely will run dual fours on either a mod-man or the Edelbrock RPM Air-Gap dual-quad intake – although a Mopar cross ram is not out of the picture. The intent here is not to build a max-effort motor but something that will be race gas reliable with shift points around 6500 RPM – Does anybody have any experience with either cylinder head?

Better read up on Stage V heads. The choice will be clear

Stage V.

I love Stage V but the price on the Edelbrock can't be beat. The Stage V's will be nearly double money and less flow.

Maybe I should give you more information based on my experience. I have been messing with 426's for over 40 years. Indy Hi-Po's are from Indy, that ought to be enough to turn you off. If you want them I have a new set here that I will never use and you can buy those.

I love anything Stage V makes. If you want Stage V's you can order them and someday they will show up. When they get there you won't have any idea what is in the Stage V boxes because you will have no recollection of ordering them it will have been so long. They will be bare castings. Raw value guides and seats. I wouldn't even call the ports done. Then you take them somewhere and have the seats and guides done and buy valves, springs, retainers, keepers and seals. And make it all fit and work. Then you will have expensive heads that flow much less than Edelbrocks. I have a set of new Stage V's if you want them.

If you want the Edelbrocks you call Summitt and they will be on your doorstep in a few days. Perfect and beautiful.

The Modman intake runs great. I haven't used the new Edelbrock intake but I think it works with factory fresh air setups if you have that.

My Edlebrocks took 7 months to get after ordering them from Summit earlier this year. Hopefully they are more off-the-shelf now. Luckily I wasn't planning on installing them until this winter.
I do agree that they appear to be a great value especially with a 10% off code that you can get from time-to-time from Summit.

i partially agree. i haven't seen the latest flow number on the edelbrock heads, but i wouldn't bother buying stage V without having them done. or the edlebrocks for that matter.

if you call someone like tim and FHO, he will sell you a set of done stage V heads. if he has them in stock, which he usually does, then you'll have them when he tells you you will. i would have to look, but i think mine flowed .435 @ .700. might be .800, i don't remember. not bad.

by the time it is all done, i really don't think there will be that much diff between these and the edelbrocks. i have no doubt the edelbrock is a solid piece, and in the end there may be little to no difference, i can't argue that. but at least for me, edelbrock does a lot of things, stage V does hemis.

How much did you pay for the Stage V's done?

I prepped a set of stage v's a while ago, I'll see if I can dig up the flow numbers.
I have a set of the Victor Jr's in the shop now..... A bit over 400cfm right ootb.

If you ordered them before they came out then, well, there was a wait. But now they're out. Summit and Jegs can ship within 24 hours.

No. It was about a year after they were out. It was supposed to be a two week wait. That stretch to a month. That stretch to another month and so on until it took almost 8 months. Again, I didn't mind because I bought them way before I planned on using them. I would just advise verifying they're in stock and ready to ship if you need them in a hurry based on my recent experience ordering them from Summit this year.

I have never had issues getting Stage-V heads, and Tim at FHO can CNC port any of the various types. I buy Stage-V heads bare because I want to know what parts went into the final assembly. Valve type and stem choices, what springs to use, final installed height, lash cap decisions, measured coil bind, final seat and machine work etc., might be reasons I've never had problems getting them. Of course, there are many decisions with any head but in my experience Gen-2 HEMI owners push the envelope a little more. Just my two cents.

I run the fully ported Hi-Po heads...I can post the flow sheets if you want. They were around 457cfm at .700 lift...I could not afford the fully porte Stage V heads, and I did not need that much...Mine are on my 605...These are a good choice of heads for a stroker that you don't need max flow for a specific ET goal....My 426-1's only flowed 400cfm and I wanted more, but I didn't need 500cfm...

Now a friend of mine runs the eddy heads...He has not flowed them, and I have not seen any flow sheets posted on these anywhere. What I do know is, nobody was making any pistons that fit these last year when he ordered all the parts for his 572...He had the ones he bought machined multiple times to fit the new chambers, so beware and check with the piston manufacturer....

Well IF I was going to be an authorized driver of this car with this thing called a HEMI I would think these will do just fine full port job please


Stage V Millennium Heads





The ultimate raised port hemi cylinder head. Designed with Pro-Stock style intake ports that direct the intake charge at the bottom of the cylinder, not at the exhaust valve. It uses long 6 inch intake valves and a smaller 149cc combustion chamer. This design has a shorter flame front and uses much lighter pistons.

The features of this hemi head include:

Special billet rocker stands

Allows the use of factory/stock rockers

Standard rocker covers - but requires longer spark plug tubes

Uses late 'Pro-GM' style bolt pattern for fabricated intake maniforlds, stock style 16 bolt intakes must use an adapter plate


Optional head porting is available with data recorded on SuperFlow 600 flowbench. These hemi heads are capable of 500CFM plus.


FHO Specifications:

Intake 2.40" 11/32" stem

Exhaust 1.90" 5/16" stem

Chamber volume 149CC

"Well IF I was going to be an authorized driver of this car with this thing called a HEMI I would think these will do just fine stirthepot full port job please whistling


Stage V Millennium Heads"


Here we go again - the budget build with an endless budget

I heard the exact same thing about pistons with the the Hi-Po heads.
https://board.moparts.org/ubbthreads/ubbthreads.php/topics/1252425/2.html

Here are some shots of the Stage-V Millennium head. This motor did over 1100 HP NA.

I went with std stg V heads with raised exhaust ports. Had Modern CNC port them. I'm still waiting on a block so I have no idea how well they work. They sure look nice though. LOL Good casting quality from stg V.

Rich, did you o-ring those or did Stage V do that? Thanks.

What the valve sizes, what's the chamber and intake runner size.

I picked up a set of billet Veney heads for my twin turbo road runner.