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Re: Need schooling on Eddy Hemi heads [Re: fast68plymouth] #2601465 01/04/19 02:09 PM 01/04/19 02:09 PM
Joined: Dec 2006 Posts: 3,395 Pa Hot 340 master
Hot 340 master Joined: Dec 2006 Posts: 3,395 Pa	Originally Posted By fast68plymouth Hughes must have gotten the “really good” ones from Edelbrock. The "open spark plug hole" ones.

Re: Need schooling on Eddy Hemi heads [Re: fast68plymouth] #2601571 01/04/19 04:33 PM 01/04/19 04:33 PM
Joined: Jan 2003 Posts: 2,297 NE Ohio DoubleD top fuel
DoubleD top fuel Joined: Jan 2003 Posts: 2,297 NE Ohio	Originally Posted By fast68plymouth Hughes must have gotten the “really good” ones from Edelbrock. The ones I’ve tested were more like 409@.800, on a 4.500 bore. Exhaust was 240 without a tube and 273 with a 2-1/8” tube. I would agree the numbers are a little happy! OTB - mine went right around 430 at .800 after being prepped - I have talked with the edelbrock designer on these and he even said much above 440 is the about the outer limits - but I guess with the right hand finish the right flow bench its possible. the hughes exhaust numbers - I would assume they ran those with a tube to get that kind of result - but I don't look at the exhaust side as real world indicator

Re: Need schooling on Eddy Hemi heads [Re: LAD 524] #2601742 01/04/19 11:58 PM 01/04/19 11:58 PM
Joined: May 2009 Posts: 511 Temperance, MI 6 68 HEMI GTS mopar
68 HEMI GTS mopar 6 Joined: May 2009 Posts: 511 Temperance, MI	Modern CNC ported mine. 68 Dart GTS "HEMI" 10.30 @ 131 pump gas street car 3780# 69 Roadrunner 511 six pack 10.92 drive to track street car

Re: Need schooling on Eddy Hemi heads [Re: Jimi_Vignogna] #2601814 01/05/19 02:54 AM 01/05/19 02:54 AM
Joined: Jan 2003 Posts: 31,037 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 31,037 Oregon	Originally Posted By Jimi_Vignogna The newer Mopar aluminum head castings are also the “E” head. I run them on my Hemi stocker. Out of the box , honed the guides put a valve job in them and assembled. Never flowed them was pressed for time. Car ran 9.89@133.00 mph 3600# IMO great cylinder heads. Everything from a factory designed head fits. Jimi, I bet you wish you would've had those heads 20 years ago! You would've cleaned up at all the races.

Re: Need schooling on Eddy Hemi heads [Re: AndyF] #2898061 03/11/21 09:36 AM 03/11/21 09:36 AM
Joined: Nov 2020 Posts: 348 Isle of Sheeps Gtxxjon enthusiast
Gtxxjon enthusiast Joined: Nov 2020 Posts: 348 Isle of Sheeps	Semi-Zombie thread revival lol... Wonderful pictures of the Edelbrock heads indeed! As most of us head porters would know, that HUMP is gonna disrupt flow in a BAD place! Surely its better to FLOW up to and around the guide and NOT have it sticking out? Compressing the air into a narrower port will make it 'speed-up' just before the valve seat... Just my thoughts and not scientific fact as I don't currently have a flow bench... Last edited by Gtxxjon; 03/11/21 09:41 AM. Carpe diem, quam minimum credula postero, thanx Horace! There’s no point trying to fix stuff that ain’t broke,,, 'but if ain’t broke',,, you is not trying hard enough...

Re: Need schooling on Eddy Hemi heads [Re: fast68plymouth] #2898188 03/11/21 03:02 PM 03/11/21 03:02 PM
Joined: Jan 2003 Posts: 17,846 S.E. Michigan ZIPPY I Live Here
ZIPPY I Live Here Joined: Jan 2003 Posts: 17,846 S.E. Michigan	Originally Posted by fast68plymouth I guess the correct answer depends on which hump is being referenced 🤦‍♂️ He did say "upstream" so I definitely misunderstood Rich H. Esse Quam Videri

Re: Need schooling on Eddy Hemi heads [Re: Gtxxjon] #2898189 03/11/21 03:03 PM 03/11/21 03:03 PM
Joined: Jan 2003 Posts: 17,846 S.E. Michigan ZIPPY I Live Here
ZIPPY I Live Here Joined: Jan 2003 Posts: 17,846 S.E. Michigan	They're just trying to maintain some thickness under the spring pocket. It does look funny. Rich H. Esse Quam Videri

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