• Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

'66 c-4 to 302 roller block adapter?

  • Thread starter Thread starter jst6
  • Start date Start date Jul 17, 2004

jst6

Founding Member
Jan 9, 2002
152
0
0
Tucson, AZ
Jul 17, 2004
#1
  • Jul 17, 2004
  • #1
is there an adapter for the old style c-4's to mount up to a newer 302 roller? or if i change to 302 do i have to change the trans? don't really want to change the trans, just spent big bucks making it hp ready. just trying to plan out the motor, rebuild the 289 or go for the 302 roller. owuld luv to keep the old 289 but may cost more to build that block than to buy an already built 302 with good shtuff.

any help is appreciated in advance.
 

one2gamble

Founding Member
Feb 27, 2001
902
1
0
Monterey
Jul 17, 2004
#2
  • Jul 17, 2004
  • #2
I am pretty sure it will bolt right up
 

351LX

Founding Member
Jul 25, 2001
1,007
0
0
Regina, Saskatchewan
Jul 17, 2004
#3
  • Jul 17, 2004
  • #3
You will need a 50 oz flexplate for the roller 302.The flexplate will have to be 157 tooth if your C-4 has the smaller bellhousing or 164 tooth if you have the larger one.
 
You must log in or register to reply here.

Similar threads

6
Hey all,I’m putting together a 302 for my 1968 Mustang and wanted to post the combo + some questions to make sure I’m not missing crucial
  • 68_Disgustang
  • Feb 22, 2026
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
4
Views
822
1965 - 1973 Classic Mustangs -General/Talk- Jun 20, 2026
gray owl
G
H
1966 mustang starter and pulley troubles
  • Hotrods4ray
  • Sep 24, 2025
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
6
Views
357
1965 - 1973 Classic Mustangs -General/Talk- Jan 10, 2026
Realmongo
Engine 302 production block selection
  • FastDriver
  • May 19, 2024
  • Fox 5.0 Mustang Tech
  • 2 3
Replies
48
Views
7K
Fox 5.0 Mustang Tech Jul 1, 2025
FastDriver
N
Vibration issue
  • Nicolaj
  • Apr 14, 2024
  • Classic Mustang Specific Tech
Replies
5
Views
1K
Classic Mustang Specific Tech Nov 8, 2024
AeroCoupe
SOLD SOLD!!!! 1993 Notchback Roadracer For Sale. She's a beast!
  • Boydster
  • Apr 25, 2025
  • Fox Body Mustangs For Sale (1979-93)
Replies
0
Views
1K
Fox Body Mustangs For Sale (1979-93) Apr 25, 2025
Boydster
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific 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?