• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-

I need help with pistons

  • Thread starter Thread starter ZunStang
  • Start date Start date Jun 5, 2020
  • Tags Tags
    mechanical issue mustang 2004v6 3.9 3.8 piston
Z

ZunStang

New Member
Jun 5, 2020
1
0
0
New Mexico
Jun 5, 2020
#1
  • Jun 5, 2020
  • #1
I need to change the pistons of my V6 3.9L 04 and I have a question.
Are the pistons of a 3.8L compatible with the 3.9L or is there a difference?
 
D

Deleted member 38176

Jun 5, 2020
#2
  • Jun 5, 2020
  • #2
3.9 has just microscopic changes to both bore and stroke. The difference is negligible. They are interchangeable
 
You must log in or register to reply here.

Similar threads

M
01 mustang 3.8 fuel pressure issue
  • Mhaley2006
  • May 29, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
60
1996 - 2004 SN95 Mustang -General/Talk- May 29, 2026
Mhaley2006
M
N
Complex changes need help
  • nomoremasks
  • Sep 15, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
111
1996 - 2004 SN95 Mustang -General/Talk- Sep 15, 2025
nomoremasks
N
N
New Edge 3.8L Forged Internals
  • NtheGAME
  • Jun 1, 2025
  • SN95 V6 Mustang Tech
Replies
1
Views
729
SN95 V6 Mustang Tech Jun 3, 2025
Noobz347
T
First Car, what should I do for power??
  • tunedV6
  • Apr 13, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
7
Views
214
1996 - 2004 SN95 Mustang -General/Talk- May 4, 2026
580HP*428Cj
5
K
3.8 T5 & Bellhousing to 1987 Lincoln 5.0
  • ks65stang
  • Mar 2, 2026
  • Other Auto Tech
Replies
3
Views
248
Other Auto Tech Mar 3, 2026
Noobz347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
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?