Re: Edelbrock Victor Hemi Heads
[Re: Hot 340]
#2203765
11/28/16 04:36 AM
11/28/16 04:36 AM
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Joined: Aug 2003
Posts: 43,007 Bend,OR USA
Cab_Burge
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I Win
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Bend,OR USA
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Probably You should call Edelbrock tech. to get the straight scoop let us know what they say please
Last edited by Cab_Burge; 11/28/16 04:37 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Edelbrock Victor Hemi Heads
[Re: Cab_Burge]
#2203775
11/28/16 08:21 AM
11/28/16 08:21 AM
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Joined: Dec 2006
Posts: 3,391 Pa
Hot 340
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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
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Re: Edelbrock Victor Hemi Heads
[Re: Hot 340]
#2203810
11/28/16 11:52 AM
11/28/16 11:52 AM
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Joined: Oct 2006
Posts: 243 Cranberry Twp PA (North of Pit...
rumblefish72
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Cranberry Twp PA (North of Pit...
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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!!
1972 Pro-Street 'Cuda, 500" Eagle stoker B Block, Eddy RPM heads, Victor Manifold, 850 Mighty Demon, Hemi 4 Speed, Dana 60 w/4.88 gears - Built by Hansen Racing Middlesex - NJ
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Re: Edelbrock Victor Hemi Heads
[Re: Hot 340]
#2203881
11/28/16 02:53 PM
11/28/16 02:53 PM
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Joined: Jan 2012
Posts: 2,603 Stuttgart, Arkansas
rickseeman
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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.
2011 Drag Pak Challenger
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Re: Edelbrock Victor Hemi Heads
[Re: rumblefish72]
#2203882
11/28/16 02:56 PM
11/28/16 02:56 PM
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Joined: Jan 2012
Posts: 2,603 Stuttgart, Arkansas
rickseeman
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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.
2011 Drag Pak Challenger
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Re: Edelbrock Victor Hemi Heads
[Re: Hot 340]
#2203899
11/28/16 03:32 PM
11/28/16 03:32 PM
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Joined: Jan 2003
Posts: 3,504 DFW
mr_340
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DFW
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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.
Floyd Lippencott IV
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Re: Edelbrock Victor Hemi Heads
[Re: rumblefish72]
#2204057
11/28/16 09:59 PM
11/28/16 09:59 PM
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Joined: Dec 2006
Posts: 3,391 Pa
Hot 340
OP
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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!^
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Re: Edelbrock Victor Hemi Heads
[Re: Dragula]
#2204059
11/28/16 09:59 PM
11/28/16 09:59 PM
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Joined: Dec 2006
Posts: 3,391 Pa
Hot 340
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Re: Edelbrock Victor Hemi Heads
[Re: rickseeman]
#2204061
11/28/16 10:01 PM
11/28/16 10:01 PM
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Joined: Dec 2006
Posts: 3,391 Pa
Hot 340
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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.
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Re: Edelbrock Victor Hemi Heads
[Re: gsmopar]
#2204326
11/29/16 11:18 AM
11/29/16 11:18 AM
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Joined: Jan 2003
Posts: 13,319 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
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Posts: 13,319
Marion, South Carolina [><]
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I doubt very seriously that Muscle Motors engine will ever run like that claimed 872 hp. Another magazine dyno motor.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Edelbrock Victor Hemi Heads
[Re: an8sec70cuda]
#2204513
11/29/16 04:15 PM
11/29/16 04:15 PM
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Joined: Aug 2003
Posts: 43,007 Bend,OR USA
Cab_Burge
I Win
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Posts: 43,007
Bend,OR USA
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Last edited by Cab_Burge; 11/29/16 04:16 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Edelbrock Victor Hemi Heads
[Re: gsmopar]
#2204633
11/29/16 07:03 PM
11/29/16 07:03 PM
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Joined: Jan 2003
Posts: 13,319 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,319
Marion, South Carolina [><]
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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.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Edelbrock Victor Hemi Heads
[Re: quickd100]
#2204673
11/29/16 07:58 PM
11/29/16 07:58 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Master
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Romeo MI
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I have heard MM has a VERY HAPPY DYNO.. seen some engines come off it and were no where near that on the track
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