?? on D2TE-AA heads
FE "Freakin Expensive"
Joined: Dec 2003
Posts: 6,461
Likes: 4
From: Smith Mountain Lake, VA
LOL!! I was going to post the same question..just going the other way! My cousin just ordered the Ed RPM intake and wanted to know what stock heads would best mate up to it...
As he cant spring $1300 for the Ed heads! -Russ
As he cant spring $1300 for the Ed heads! -Russ
FE "Freakin Expensive"
Joined: Dec 2003
Posts: 6,461
Likes: 4
From: Smith Mountain Lake, VA
Cool..F250...
Now if I can just find the heads that match closest to the RPM...I'LL be allright!! I wish the Hell my cousin would get a computer!! Im tired of this!!-Russ
Now if I can just find the heads that match closest to the RPM...I'LL be allright!! I wish the Hell my cousin would get a computer!! Im tired of this!!-Russ
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
The performer RPM should work well with the D2 heads. The performer intake ports are much smaller than the D2 intake ports but this is okay. When the intake ports are bigger than the head ports then you have a big problem. The ports on the D2 head are even bigger than the RPM intake ports but you need to check placement. Make sure the port on the intake does not leave any of the head port exposed. I do believe the D2 heads and the RPM heads work well with no grinding.
The D2 ports are smaller than some heads but they are positioned in the head better than some of the bigger port heads. The C8AE-H ports are the same as the D2 ports.
The D2 ports are smaller than some heads but they are positioned in the head better than some of the bigger port heads. The C8AE-H ports are the same as the D2 ports.
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Hotshot
Joined: May 2003
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From: south louisiana
I still can't figure out why everybody thinks the C8/D2/MR427 port is "smaller" than the other FE heads. If you'll measure them, you'll find they're actually close to the same if not a little larger in cross section than the LR style port. The bottom 1/4 in a LR port is wasted space, it has a sharp jump in it just inside the port opening. The C8/D2/MR port is fatter than the others.
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Junior User
Joined: May 2003
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Originally Posted by baddad457
I still can't figure out why everybody thinks the C8/D2/MR427 port is "smaller" than the other FE heads. If you'll measure them, you'll find they're actually close to the same if not a little larger in cross section than the LR style port. The bottom 1/4 in a LR port is wasted space, it has a sharp jump in it just inside the port opening. The C8/D2/MR port is fatter than the others.
The bottom 1/4 inch of my intake will be hitting that wall.... not very good for flow, wouldn't you say??
Post Fiend
Joined: Feb 2000
Posts: 5,130
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From: Brea CA
I wouldn't worry about the mismatch on the bottom, that's the way Ford ran the P.I. motors, remember they mated to the short port heads from the factory. Didn't seem to bother the air flow at all in fact it worked very well.
Many a engine build-up article in the '70's from Ford, Hot Rod and others used the iron CJ or PI intake on these heads. Yeah there's a step at the bottom but it didn't cause any problems as long as you got it sealed with no leaks.
Many a engine build-up article in the '70's from Ford, Hot Rod and others used the iron CJ or PI intake on these heads. Yeah there's a step at the bottom but it didn't cause any problems as long as you got it sealed with no leaks.
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Junior User
Joined: May 2003
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.060 over 428 (439), standard type pistons, solid lift cam(don't have specs but it's 551 in. lift,, 569 ex. lift,, rebuilt D2ee heads with new stainless valves, new seats and guides. and the P.I. intake sounds good to me now..
Last edited by gt6plus; Apr 21, 2004 at 12:15 PM.