Can intake side of heads be milled? - Hot Rod Forum : Hotrodders Bulletin Board -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 10-26-2005, 02:47 PM
brainsboy's Avatar
Last photo:
Join Date: Jan 2004
Location: tampa
Age: 45
Posts: 1,008
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Can intake side of heads be milled?

1969 351w
pro topline aluminum 215cc heads

Originally my motor ran great, then slowly started running bad over time, after checking rockers, plugs, carb , timing and everything I found that some on the intake bolts were loose. So I tighten them back to 20ftpds and it would run fine for a few days then act up again. Eventually it stripped the bolts out of the head, but only from one side, which seemed weird. Fords use 5/16 intake bolts so instead of helicoils i just drilled and tapped out to 3/8 inch and ran studs. Put it back together and after a few days started running bad again, i was sure it wasnt the intake since the top wasnt leaking so went through checking everything else with no luck. With no more options I pulled the intake again and discovered the thing was leaking from the under side. Put in new gaskets and over torqued it down to 30 ftpd's.... runs like a top now with no problems. Seems to me the heads were milled at the wrong angle or a few degree's off, what do you guys think? I'm not sure if a machine shop can mill that side of the head since they have a ridge that the valvecover sits on. Maybe the intake could be milled to adjust for the heads being wrong.

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 10-26-2005, 03:31 PM
King of my Man-cave.
Last photo:
Join Date: Nov 2003
Location: Michigan
Age: 58
Posts: 2,912
Wiki Edits: 0

Thanks: 6
Thanked 18 Times in 15 Posts
Yes, they can be milled on the intake side. You can use an end mill or a shell mill cutter. The hard part is determining the exact amount needed and you have to remember that the heads will be one-off afterward.

Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
this is a saver.... GM build codes TooMany2count General Rodding Tech 24 11-23-2009 09:36 AM
olds 403? Meka Engine 15 09-11-2005 01:48 PM
BBC rectangular port intake, oval port heads.. wildman926 Engine 14 10-14-2004 11:49 PM
Head recommendation - low HP w/LT1 intake Tim240Z Engine 0 07-08-2004 12:56 PM
Lt1 intake for vortec heads? Newt408 Engine 1 12-06-2003 10:33 PM

All times are GMT -6. The time now is 07:48 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.