|
Author
|
Topic: Milling the intake
|
MrXerox
Gearhead Posts: 322
From: Oklahoma City, Oklahoma
Registered: Nov 2000
|
posted 06-10-2001 10:08 PM
   
What is the proper method to check to see if I need to get my intake milled to fit correctly? My heads have been shaved several times over the years and I do not remember how much has been taken off. I want to check and see if I need to get this done before I put it on...
IP: Logged |
SteveLaRiviere
Administrator Posts: 32961
From: Saco, Maine
Registered: May 99
|
posted 06-11-2001 05:12 PM
You set the intake down with the heads on the block and without gaskets and measure how parallel the surfaces are. Without getting a book out, I think it's something like .020" per running inch.------------------
'70 Mustang Mach 1 M code 351C 4V/FMX/3.50 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L DOHC {Wife's car...}
All Fords since 1977
IP: Logged |
steve'66
Gearhead Posts: 6352
From: Sonoma,CA,USA
Registered: Mar 2000
|
posted 06-12-2001 06:22 PM
Mr.X,Milling the heads will lower your head's intake ports in relation to the intake manifold's ports. Set your intake on and see how the ports line up, use clay for a print. If they are off more than a 1/32" or so, it's time to machine the intake.
{Or, the cheap way is to port the intake to match the head, "move" the bolt holes, and use silicone on the front and rear of the intake.}
Tell your machinist how far off the ports are and let him mill the intake to match.  SteveW Edited due to thinking of non-sbf heads the first time around!  [This message has been edited by steve'66 (edited 06-12-2001).]
IP: Logged |
Moneymaker
Administrator Posts: 19686
From: Lyons, IL, USA
Registered: May 99
|
posted 06-12-2001 08:59 PM
As Steve L. says and you also should shine a flashlight down the ports and look at the port alignment. Many times you only have to elongate the bolt holes anbd eliminate the end rail gaskets.  ------------------
Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member NHRA and IHRA SS/LA national record holder
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link
IP: Logged |
Mustangsandmore Forums
UBBFriend: Email This Page to Someone! 
