• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

.030 milled from a GT40Y head OK?

  • Thread starter Thread starter R100RT
  • Start date Start date Jun 26, 2006
R

R100RT

Founding Member
Nov 27, 2000
362
0
16
Sonora, CA
Jun 26, 2006
#1
  • Jun 26, 2006
  • #1
Stangers,

I have a set of Y303 heads that were O-ringed. I want to mill off the O-ring groves and use them on my '94 5.0L. When this is done, the heads will have had .030 milled from them.

I would like to know if I can still use these heads and what problems I need to watch out for.
 
J

JS94cobra

Banned
Mar 8, 2006
58
0
0
NJ
Jun 26, 2006
#2
  • Jun 26, 2006
  • #2
R100RT said:
Stangers,

I have a set of Y303 heads that were O-ringed. I want to mill off the O-ring groves and use them on my '94 5.0L. When this is done, the heads will have had .030 milled from them.

I would like to know if I can still use these heads and what problems I need to watch out for.
Click to expand...

combustion chambers get smaller. CR goes up!
 
R

R100RT

Founding Member
Nov 27, 2000
362
0
16
Sonora, CA
Jun 26, 2006
#3
  • Jun 26, 2006
  • #3
JS94cobra said:
combustion chambers get smaller. CR goes up!
Click to expand...
They started out as 64cc so that may not be so bad. What is the volumne of the stock, E7?, heads?
 
You must log in or register to reply here.

Similar threads

J
can you use the heads off a H O 302 to put on a regular 302 engine
  • Jan H
  • Feb 25, 2026
  • Other Auto Tech
Replies
6
Views
366
Other Auto Tech May 17, 2026
nickyb
Engine Gas in my oil
  • limp
  • Jun 15, 2025
  • Fox 5.0 Mustang Tech
  • 2
Replies
35
Views
1K
Fox 5.0 Mustang Tech May 16, 2026
Mindseye007
M
Engine Unexplainable Exhaust Pop and Gurgle
  • Mrnissen122
  • Feb 14, 2026
  • Fox 5.0 Mustang Tech
Replies
12
Views
573
Fox 5.0 Mustang Tech Feb 18, 2026
Noobz347
T
Greetings from a guy who needs help with a foxbody.
  • thefonztm
  • Mar 21, 2026
  • The Welcome Wagon
Replies
16
Views
478
The Welcome Wagon Mar 22, 2026
Noobz347
J
'04 3.8L V6 mineral deposits and oil on #3 cylinder. Does it need a rebuild or something simpler?
  • joeybuddy96
  • Mar 18, 2026
  • SN95 V6 Mustang Tech
Replies
7
Views
287
SN95 V6 Mustang Tech Friday at 3:06 PM
gkomo
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?