‘97 4.6 NPI to ‘99 Windsor PI

Daniel Carbert

New Member
Joined
Jan 31, 2020
Messages
1
Reaction score
0
I’ve seen questions similar to this asked a lot but I’ve seen so many different answers. I have a 1997 Mustang GT, 4.6 V8. From what I understand, all 4.6 mustangs before ‘99 had Romeo blocks. I’m looking at a pair of Windsor PI heads out of a ‘99 GT. Will they go on my block? What would I need? Thanks in advance!
 
Last edited:

lwarrior1016

Mr. Secondary Timing Chain
Staff
Joined
Sep 22, 2014
Messages
7,057
Reaction score
2,099
Location
South Mississippi
Yes they will go on. Make sure you have the correct head gaskets, the Windsor and Romeo heads have different oil ports. The windsor heads also have more bolts in the cam covers so you’ll need those. Also, some of them had larger bolts through the timing cover in to the front of the heads. It’s not a big deal, though. I think those are the major differences you’ll have to overcome
 

Latest posts

Forum statistics

Threads
76,270
Messages
1,473,384
Members
14,154
Latest member
NekRoass

Members online

Top