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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

Our lower the same as the fox?

  • Thread starter Thread starter stangzroastrice
  • Start date Start date Jun 9, 2007

stangzroastrice

Founding Member
Aug 5, 2002
278
0
16
Belmar, NJ (Jersey Shore)
Jun 9, 2007
#1
  • Jun 9, 2007
  • #1
Just curious, I've changed my motives and I'm looking to put in a forged longblock from a 87-92 fox body, are the lowers the same, so I can just attach my 94 upper to it? thanks!
 

JJ95GTID

Active Member
Sep 22, 2003
1,141
4
49
Phoenix, AZ
Jun 9, 2007
#2
  • Jun 9, 2007
  • #2
A long block from 87-93 is the same as the 94-95 and will work with all of the 94-95 specific hardware. The rotating assembly is the same unless the one you plan to use was upgraded to forged internals later.

I've heard that some of the late 80s blocks have a higher nickle content and that they were slightly stronger but have not experienced this first hand.
 

stangzroastrice

Founding Member
Aug 5, 2002
278
0
16
Belmar, NJ (Jersey Shore)
Jun 9, 2007
#3
  • Jun 9, 2007
  • #3
well the long block is different aside from the fact that the fox (87-92) used the forged TRW pistons which is attractive about it. just wanted to make sure the lower was the same so i wouldn't have to remove it...
thanks!
 

JJ95GTID

Active Member
Sep 22, 2003
1,141
4
49
Phoenix, AZ
Jun 9, 2007
#4
  • Jun 9, 2007
  • #4
stangzroastrice said:
well the long block is different aside from the fact that the fox (87-92) used the forged TRW pistons which is attractive about it. just wanted to make sure the lower was the same so i wouldn't have to remove it...
thanks!
Click to expand...

I am pretty sure that only the '86 5.0L Mustang had the flat top forged pistons from the factory.
 

VIPRETR

New Member
Mar 9, 2007
19
0
0
Kalamazoo, MI.
Jun 9, 2007
#5
  • Jun 9, 2007
  • #5
I think he means lower intake JJ95GTID. The 94/95 upper should bolt up to the lower on a fox. The only difference I can think of is the foxes lower is drilled and tapped for the ACT sensor. Just leave the old one in the lower to plug the hole.
 

blksn955.o

Founding Member
Mar 15, 2002
3,263
0
66
st.louis mo 314
Jun 10, 2007
#6
  • Jun 10, 2007
  • #6
86 had flat top pistons

87-92 had forged pistons with valve reliefs

93-95's had hyper pistons.

Really if its just to get get forged pistons I wouldnt do it. Hypers can handle a good bit of power from n2o and boost if tuned correctly. Even a good forged piston will fail from det./ping.
 

stangzroastrice

Founding Member
Aug 5, 2002
278
0
16
Belmar, NJ (Jersey Shore)
Jun 11, 2007
#7
  • Jun 11, 2007
  • #7
haha after reading this i realized i completely forgot to specify the lower "intake"... sorry about that... anyways, thank you for the help guys...
 

blksn955.o

Founding Member
Mar 15, 2002
3,263
0
66
st.louis mo 314
Jun 11, 2007
#8
  • Jun 11, 2007
  • #8
lower intake is the same more or less. My 94 actually had a left over 93 fox intake (mine is an early 94 model...IIRC its build stickers were around aug. 93). There is a plug that is/was installed since the air intake sensor was moved to the intake tubeing and removed from the lower.

The lower will bolt up otherwise directly.
 
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