Moparts

Edelbrock Victor Hemi Heads

Posted By: Hot 340

Edelbrock Victor Hemi Heads - 11/28/16 01:38 AM

Do these require a custom piston with the rolled valve angles that these heads utilize?
Posted By: Cab_Burge

Re: Edelbrock Victor Hemi Heads - 11/28/16 08:36 AM

Probably shruggy You should call Edelbrock tech. to get the straight scoop scope
let us know what they say please work
Posted By: Hot 340

Re: Edelbrock Victor Hemi Heads - 11/28/16 12:21 PM

Im sure they will say "Yes" to the question. But what about a 10.5 engine with a lower .600 lift cam, 4.50 bore and 4.125 stroke? -The pistons have very little dome. I Know ultimately it will need mocked up but there is so much room in there now with standard valves its hard to see it would be a problem in this case.

I guess a better question would be..Has anyone have experience putting big valve heads on a pump gas 528?



http://www.jegs.com/InstallationInstructions/300/350/350-61169.pdf
Posted By: rumblefish72

Re: Edelbrock Victor Hemi Heads - 11/28/16 03:52 PM

Why don't you call Diamond Pistons up and ask them. They supplied the pistons for the buildup that Mopar Muscle Magazine (Dan Foley) is doing as a multipart series in the latest issues. See: http://www.hotrod.com/articles/street-hemi-hardware-valvetrain-secrets-ray-barton/

In the first installment where they blueprint the head, they say that the exhaust angle only changed by 1.5 degrees. So I suppose that for anything mild on the camshaft/compression, you'll be fine. But as always, you need to check during mock-up so you can sleep at night.

That Edelbrock head really flows the number ... that give-away motor that MM did for Carlisle made big power. When I asked MM why it dyno'ed so big, they said that the Eddy Head with a just a little clean-up flowed really big CFM ... like as big as my Stage V with full street CNC from MCH. So I think that is the head to run to get big flow without spending a bunch of $$ on custom CNC work.

I wonder what happens to the rocker to valve tip alignment on the exhaust when you give the valve an extra 1.5 degrees of cant at the combustion chamber. That might move the tip of a long valve too far out for a stock rocker arm. Edelbrock says you can run all stock pieces with this head so I wonder how they engineered the additional 1.5 degrees AND kept the stock rocker geometry.


PS: That 440 block you sold me checked out good after coming back from sonic at the machine shop. Thanks!!
Posted By: Dragula

Re: Edelbrock Victor Hemi Heads - 11/28/16 04:21 PM

Buddy runs them on his 572 we dyno'd....Here's the story.

https://board.moparts.org/ubbthreads/ubbt...-pics-vids.html
Posted By: rickseeman

Re: Edelbrock Victor Hemi Heads - 11/28/16 06:53 PM

Originally Posted By Hot 340
Do these require a custom piston with the rolled valve angles that these heads utilize?


I don't think that is a problem on an engine like you are building. You should have plenty of room. I recently built a 10.5 compression .600 lift 472 and had plenty of room.
Posted By: rickseeman

Re: Edelbrock Victor Hemi Heads - 11/28/16 06:56 PM

Originally Posted By rumblefish72

I wonder what happens to the rocker to valve tip alignment on the exhaust when you give the valve an extra 1.5 degrees of cant at the combustion chamber. That might move the tip of a long valve too far out for a stock rocker arm.


Come on guys, do you think Edelbrock and Barton have done this before? The valve tip will be in the right place.
Posted By: mr_340

Re: Edelbrock Victor Hemi Heads - 11/28/16 07:32 PM

I think Edelbrock did the same thing that MP did on the solid Hemi cast heads. They tilted the exhaust valve around the point where the rocker arm would contact the valve tip. There was a bit of a pocket around the exhaust valve head since the valve centerline was no longer going through the center of the chamber radius. I sold those heads to Hemi Fred for his turbo project several years back.

Attached picture Big Valve Ex Seat.JPG
Posted By: Hot 340

Re: Edelbrock Victor Hemi Heads - 11/29/16 01:59 AM

Originally Posted By rumblefish72
Why don't you call Diamond Pistons up and ask them. They supplied the pistons for the buildup that Mopar Muscle Magazine (Dan Foley) is doing as a multipart series in the latest issues. See: http://www.hotrod.com/articles/street-hemi-hardware-valvetrain-secrets-ray-barton/

In the first installment where they blueprint the head, they say that the exhaust angle only changed by 1.5 degrees. So I suppose that for anything mild on the camshaft/compression, you'll be fine. But as always, you need to check during mock-up so you can sleep at night.

That Edelbrock head really flows the number ... that give-away motor that MM did for Carlisle made big power. When I asked MM why it dyno'ed so big, they said that the Eddy Head with a just a little clean-up flowed really big CFM ... like as big as my Stage V with full street CNC from MCH. So I think that is the head to run to get big flow without spending a bunch of $$ on custom CNC work.

I wonder what happens to the rocker to valve tip alignment on the exhaust when you give the valve an extra 1.5 degrees of cant at the combustion chamber. That might move the tip of a long valve too far out for a stock rocker arm. Edelbrock says you can run all stock pieces with this head so I wonder how they engineered the additional 1.5 degrees AND kept the stock rocker geometry.


PS: That 440 block you sold me checked out good after coming back from sonic at the machine shop. Thanks!!
Glad that block worked out! We had that thing here since the '80's! Thanks for the info too!^
Posted By: Hot 340

Re: Edelbrock Victor Hemi Heads - 11/29/16 01:59 AM

Originally Posted By Dragula
Buddy runs them on his 572 we dyno'd....Here's the story.

https://board.moparts.org/ubbthreads/ubbt...-pics-vids.html
thanks Dragula.
Posted By: Hot 340

Re: Edelbrock Victor Hemi Heads - 11/29/16 02:01 AM

Originally Posted By rickseeman
Originally Posted By Hot 340
Do these require a custom piston with the rolled valve angles that these heads utilize?


I don't think that is a problem on an engine like you are building. You should have plenty of room. I recently built a 10.5 compression .600 lift 472 and had plenty of room.

^ thats what I was thinking...guess in the end its a try it and see deal.
Posted By: gsmopar

Re: Edelbrock Victor Hemi Heads - 11/29/16 03:01 AM

Originally Posted By Dragula
Buddy runs them on his 572 we dyno'd....Here's the story.

https://board.moparts.org/ubbthreads/ubbt...-pics-vids.html


Those numbers seem a little low. I think MM got 850hp out of their 572 Eddy head build and that was with a hydraulic roller.

*edit: 872hp!

http://www.hotrod.com/articles/win-hemi-giveaway-motor-part-3-twist-572ci-beast-850-hp/
Posted By: an8sec70cuda

Re: Edelbrock Victor Hemi Heads - 11/29/16 03:18 PM

Originally Posted By gsmopar
Originally Posted By Dragula
Buddy runs them on his 572 we dyno'd....Here's the story.

https://board.moparts.org/ubbthreads/ubbt...-pics-vids.html


Those numbers seem a little low. I think MM got 850hp out of their 572 Eddy head build and that was with a hydraulic roller.

*edit: 872hp!

http://www.hotrod.com/articles/win-hemi-giveaway-motor-part-3-twist-572ci-beast-850-hp/

I doubt very seriously that Muscle Motors engine will ever run like that claimed 872 hp. Another magazine dyno motor. rolleyes
Posted By: Cab_Burge

Re: Edelbrock Victor Hemi Heads - 11/29/16 08:15 PM

Originally Posted By an8sec70cuda
Originally Posted By gsmopar
Originally Posted By Dragula
Buddy runs them on his 572 we dyno'd....Here's the story.

https://board.moparts.org/ubbthreads/ubbt...-pics-vids.html


Those numbers seem a little low. I think MM got 850hp out of their 572 Eddy head build and that was with a hydraulic roller.

*edit: 872hp!

http://www.hotrod.com/articles/win-hemi-giveaway-motor-part-3-twist-572ci-beast-850-hp/

I doubt very seriously that Muscle Motors engine will ever run like that claimed 872 hp. Another magazine dyno motor. rolleyes

iagree haha I've seen nice race cars at the local SO CA drag strips get featured in some of the better Petersen Publishing magazines that the times printed where enhanced buy a bunch by the writer to help sell the mags shruggy
Posted By: gsmopar

Re: Edelbrock Victor Hemi Heads - 11/29/16 09:59 PM

MM's numbers are more in line to some of the posts in this thread. This is my first Hemi. I don't really know what to expect.

http://www.yellowbullet.com/forum/showthread.php?t=1203698&highlight=
Posted By: quickd100

Re: Edelbrock Victor Hemi Heads - 11/29/16 10:49 PM

For what it's worth...when I built my 605 the kit came with diamond pistons. At the time I was using an Indy 426sr head,(stock size valves with stock valve angles). I had a Bullet custom roller ground up for it. When mocking things up I found I didn't have enough p/v clearance and had the valve reliefs cut. After buying a set of Indy Hi-Po heads with the big valves and exhaust tilted 1.5 degrees I had loads of p/v clearance. I'm guessing the pistons were aready set up for the altered valve angles.
You will also have a bit more exhaust lift with the tilted exhaust valve as it moves it closer to the center of the rocker arm.
Posted By: an8sec70cuda

Re: Edelbrock Victor Hemi Heads - 11/29/16 11:03 PM

872 hp is extremely optimistic for a 10.5:1 572" hemi w/ "conventional" heads, a mod man intake, and a baby hyd. roller cam (258/270 at .050, .598"/.579" lift). And they only turned it 6200-6300 rpm. I call BS on it. It'll be another one of those 10 or 11 sec 800 hp buildups.
I bet the motor Dragula posted about, that made 100+ hp LESS, would walk over it.

Posted By: quickd100

Re: Edelbrock Victor Hemi Heads - 11/29/16 11:29 PM

I'd have to agree, that's BIG numbers for that combination. Dave
Posted By: MR_P_BODY

Re: Edelbrock Victor Hemi Heads - 11/29/16 11:58 PM

I have heard MM has a VERY HAPPY DYNO.. seen some
engines come off it and were no where near that
on the track
wave
Posted By: quickd100

Re: Edelbrock Victor Hemi Heads - 11/30/16 12:57 AM

Dyno numbers can be argued and talked to death. Top numbers are just bragging rights until it see's the strip. What some people fail to realize is the dyno is just a tuning tool. What's important is to compare the starting numbers to what you finally achieve tuning, testing, and tinkering. $.02 Dave
Posted By: gsmopar

Re: Edelbrock Victor Hemi Heads - 11/30/16 03:48 AM

There are several engines in that yellowbullet link I posted (some of you guys?) running the Indy SR heads making north of 800hp on mild builds. I just thought the Edelbrock Heads should out perform them with the larger intake valve.

My build is a Musclemotors 604, CNC ported Indy SR, custom solid roller, and as of today Barton rocker arms. Hoping to be >800hp and able to survive Drag Weekend and Drag Week.
Posted By: quickd100

Re: Edelbrock Victor Hemi Heads - 11/30/16 04:41 AM

What do they flow? Mine flowed 387 after Indy's CNC and Jeff@Modern did a bowl blend. With 10.4-1 compression, a Bullet solid roller .767/.676, 288/292@.050, tunnel ram and 2 850 thermoquads and about 50 dyno pulls tuning it, it made 853hp&818ftlbs. On my dyno. I have not finished updating the motor yet. A new set of the Indy Hi-Po heads, (they flow 442 corrected) and a couple other goodies. I'm guessing 925-950 If everything works correctly. Dave
Posted By: gsmopar

Re: Edelbrock Victor Hemi Heads - 11/30/16 04:48 AM

I'm not sure what they flow. MM hasn't given me much info.



Posted By: DoubleD

Re: Edelbrock Victor Hemi Heads - 11/30/16 05:22 PM

The Eddie heads flow a touch over 400 out of the box and 450 cleaned up
© 2024 Moparts Forums