milling intake
Burning Brakes
Joined: Aug 2000
Posts: 1,211
Likes: 6
Re: milling intake (ITSovr4U)
John, I wish I could remember where I saw that listed. There was an amount that would be taken off the intake depending on how much was milled from the head. A formula, if you will.
One thought would be to e-mail the Edelbrock tech guys. They may be able to give you some help.
Sorry not more help. But, that info is out there somewhere.
Regards, Mark
One thought would be to e-mail the Edelbrock tech guys. They may be able to give you some help.
Sorry not more help. But, that info is out there somewhere.
Regards, Mark
Race Director
Joined: Jan 2000
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From: Corsicana, Tx
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Re: milling intake (ITSovr4U)
If the heads are done correctly, there is NO need to mill the intake!! Many folks do it this way, which is WAY too much trouble.
What needs to happen is after the heads are milled to whatever you want. doesn't matter, straight milled, angle milled..whatever...you need to have them machine the INTAKE face of the head. It's very common at better machine shops. If they don't know what you're talking about, find a new shop..you don't want them doing the other either.
If you mill the intake face of the heads, then you have a set of heads that will allow ANY intake to bolt on them. Later you can change intakes or sell the heads knowing anything will fit.
If you mill intake to match, you have "married" that intake to those heads and neither will ever fit anything else.
Ask you machinist. My last heads were angle milled from 122 cc to 108 and stock intake fit with no issues. My current ones have been milled from 129cc to 112 and a stock intake fits. But in both cases, the intake face of head was cut too. It's just the right way to do it.
JIM
What needs to happen is after the heads are milled to whatever you want. doesn't matter, straight milled, angle milled..whatever...you need to have them machine the INTAKE face of the head. It's very common at better machine shops. If they don't know what you're talking about, find a new shop..you don't want them doing the other either.
If you mill the intake face of the heads, then you have a set of heads that will allow ANY intake to bolt on them. Later you can change intakes or sell the heads knowing anything will fit.
If you mill intake to match, you have "married" that intake to those heads and neither will ever fit anything else.
Ask you machinist. My last heads were angle milled from 122 cc to 108 and stock intake fit with no issues. My current ones have been milled from 129cc to 112 and a stock intake fits. But in both cases, the intake face of head was cut too. It's just the right way to do it.
JIM
Le Mans Master
Joined: Mar 1999
Posts: 6,744
Likes: 1
From: delmont pa
Cruise-In I Veteran
Cruise-In II Veteran
Re: milling intake (427Hotrod)
you have to cut the intake side of a head if you "angle mill" the head to bring back the correct angle between the head surface and the intake surface. you also must respotface the top of the head bolt seat on the head to get the bolt to seat flat on the head. if you mill the intake side of any head you bring the bottom of the intake closer to the top of the block and this could cause a fitment problem if you do not mill the bottom of the intake. :chevy
[Modified by clem zahrobsky, 12:54 PM 9/5/2003]
[Modified by clem zahrobsky, 12:55 PM 9/5/2003]
[Modified by clem zahrobsky, 12:54 PM 9/5/2003]
[Modified by clem zahrobsky, 12:55 PM 9/5/2003]
