If you mill heads do you have to mill the intake too??
#1
Supreme Member
Thread Starter
Join Date: Aug 2001
Location: Costal Alabama
Posts: 2,136
Likes: 0
Received 1 Like
on
1 Post
Car: 1989 Iroc-Z
Engine: 350, ZZ4 equivalent
Transmission: Pro-Built Road Race 700R4
Axle/Gears: 3.23 Dana 44
If you mill heads do you have to mill the intake too??
I am trying to chase down the cause of coolant in my oil. I have a brand new engine, heads, and intake. The heads had shipping damage and had to be milled .021 (if I remember correctly) to take out a nick. If you mill the heads do you have to mill the intake to get a correct angle to seal of the intake to heads?
Last edited by 89 Iroc Z; 06-28-2004 at 09:52 PM.
#2
Supreme Member
Join Date: Jul 1999
Location: Loveland, OH, US
Posts: 18,457
Likes: 0
Received 15 Likes
on
15 Posts
Car: 4
Engine: 6
Transmission: 5
If the heads are straight milled, then the intake flange angle does not change. Only the "width" across the top of the engine as measured between 2 fixed points on the heads changes. Specifically, the ports and bolt holes all move down and in.
For .021" of milling, you probably wouldn't have to fool with the intake..... unless they had already been milled before you got them. ALOT.
I doubt that's your problem. A leaky intake gasket could be, but not likely a result of milling the heads.
For .021" of milling, you probably wouldn't have to fool with the intake..... unless they had already been milled before you got them. ALOT.
I doubt that's your problem. A leaky intake gasket could be, but not likely a result of milling the heads.
#3
Supreme Member
iTrader: (1)
Join Date: Jun 2003
Location: Elgin, IL
Posts: 3,085
Likes: 0
Received 2 Likes
on
2 Posts
Car: 1997 Corvette
Engine: LS1
Transmission: 4L60E
Axle/Gears: 2.73 IRS
You should always have the intake taken into the shop that mills down your heads to have them check it out. It can make a difference. If the bolt holes are off a bit, it may not seat properly no matter how much you torque it down..
Thread
Thread Starter
Forum
Replies
Last Post
ambainb
Camaros for Sale
11
04-25-2016 09:21 PM