390 Intakes?
FE "Freakin Expensive"
Joined: Dec 2003
Posts: 6,461
Likes: 4
From: Smith Mountain Lake, VA
Well the only 2 holleys Im firmiliar with was the street master and the strip Dominator, which were like night and day as far as the size of the ports...but this is going back to the mid 70s..alot has changed since then.. I guess what it boils down to..what your want ing to get out of your motor, what your going to use it for,how much you want to build it? There's Guys in this forum that run from 200HP up to 700HP +
Russ
Russ
Post Fiend
Joined: Jan 2003
Posts: 8,600
Likes: 4
From: Iowa
Scott, what heads are you running? I run stock heads on my 360, and the intake ports on them are smaller than the ports on the Edelbrock RPM intake. I had to port the heads. It's not that hard, just plan on a little more work if you go that way.
Elder User
Joined: Feb 2004
Posts: 835
Likes: 0
From: Fort Rucker, AL
Rusty,
I'm running an Edelbrock Performer intake on stock heads and stock exhaust manifolds (2.5" pipes). I never thought to check the ports on the heads. I'm not having any problems, per say, but I'm going to pull the motor again in a month or so to put in a Crane 901 camshaft. Is porting the heads something I should look at or is that just for the RPM intake?
I'm running an Edelbrock Performer intake on stock heads and stock exhaust manifolds (2.5" pipes). I never thought to check the ports on the heads. I'm not having any problems, per say, but I'm going to pull the motor again in a month or so to put in a Crane 901 camshaft. Is porting the heads something I should look at or is that just for the RPM intake?
Elder User
Joined: Jun 2003
Posts: 686
Likes: 1
From: Edgewood, Wa
From my experiance, I believe the RPM should be port matched... I just went thru misery trying to make one work on my application.(I didnt port match- and am anticipating Kurts results!!) The regular Performer 390 doesnt have nearly as large of port, so should be fine with stock heads. BTW, your gonna love the 901!!! 
Elder User
Joined: Feb 2004
Posts: 835
Likes: 0
From: Fort Rucker, AL
I can't wait for the tooth fairy to bring me some money so I can do what I want with my motor.
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Elder User
Joined: Feb 2004
Posts: 835
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From: Fort Rucker, AL
Have you done the oiling mod that Ratsmoker talks about?
Last edited by debestuss; Jul 18, 2004 at 01:28 PM.
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Elder User
Joined: Jun 2003
Posts: 686
Likes: 1
From: Edgewood, Wa
Originally Posted by debestuss
Have you done the oiling mod that Ratsmoker talks about?
) I am planning on a MONSTER 390 that I want to put in a slammed 2wd 73-78
short bed ( IF I can find one!
) and I will be taking advantage of all the recomended oil mods on that motor.
FE "Freakin Expensive"
Joined: Dec 2003
Posts: 6,461
Likes: 4
From: Smith Mountain Lake, VA
The easiest way to check your intake to head ports, is to set your intake onthe heads with the gaskets in place, and run down a few intake bolts, take spray Dy-kem and spray it thru where the carb should be..and it will leave witness marks on the gasket..trace out your gasket, and that will give you a template for the intake on the heads...DONT port them to that size..Unless you have ported before and had good results? just port match them and blend to the original port.. I hope I explained this right!!
One of these days , I'll learn to keep my trap shut!! LOL!! Russ-Good Luck...Kurts done it now he knows!!
One of these days , I'll learn to keep my trap shut!! LOL!! Russ-Good Luck...Kurts done it now he knows!!
Thread Starter
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Senior User
Joined: Oct 2003
Posts: 109
Likes: 0
right now i have stock D2TE-AA Heads but am getting some edel. rpm heads with port work. I was wondering because the price of the Edel. RPM manifold through jegs is $295 plus shipping But i can get the street dominator new for $150 my uncle has one.
the intake will be reused on the 390 im building. 390 +.030, Ported Edel Heads, TRW Forged pistons bout 9.5:1 Comp., Erson Rockers, Holley 770, Ceramic coat hedders, not sure on cam yet
the intake will be reused on the 390 im building. 390 +.030, Ported Edel Heads, TRW Forged pistons bout 9.5:1 Comp., Erson Rockers, Holley 770, Ceramic coat hedders, not sure on cam yet