Difference between 86 and 88 5.0 motors

mustangfreak88

New Member

Oct 13, 2006

12

0

0

Attleboro,MA

Dec 20, 2006

#1

• Dec 20, 2006

• #1

My uncle has a 86 lincoln mark vii with a 5.0 which i can get the motor for free. I know it has less hp than my 88 GT motor but for free, i don't think i can past it up. It has around 180,000 miles on it, so is it even worth getting first of all? If it is, what are the differences between the two motors and why does it have less hp? I am going to UTI next year, so i will be doing a complete rebuild on the 86 5.0. What would be some cheap upgrades to install?

 

7-UP BILL

Founding Member

Jan 4, 2001

885

19

49

My other car is a Firetruck

Dec 20, 2006

#2

• Dec 20, 2006

• #2

The main difference between the two motors are the heads and pistons. The 86 pistons have no valve reliefs ( flat tops meaning no big cams). The bottom end otherwise is identical. In 87 Ford went to the E7TE heads (truck heads) which are better.

 

89streetbeast

New Member

Dec 4, 2006

365

1

0

horton,ks

Dec 20, 2006

#3

• Dec 20, 2006

• #3

7-UP BILL said:

The 86 pistons have no valve reliefs

Click to expand...

i thought just the mustang 5.0's had the flattops in 86 and others were just standard dish

 

dragnazz5.0

My "0" key d0esn't w0rk, s0 I have t0 use the zer0

Nov 19, 2005

815

5

18

mooresville, nc

Dec 20, 2006

#4

• Dec 20, 2006

• #4

nope....the 86 lincoln will have flat top pistons....well they might have like a .050" dish to them but it doesnt have any valve reliefs. i got the exact same motor for free and i just used the block and rods for my car

 

mustangfreak88

New Member

Oct 13, 2006

12

0

0

Attleboro,MA

Dec 21, 2006

#5

• Dec 21, 2006

• #5

I was going to replace the heads and the pistons when i do the rebuild, so with doing that, could i use the E303 or B303 cam?I will also be converting it over to mass air.

 

Chietala

New Member

Sep 21, 2006

111

0

0

Sacramento

Dec 21, 2006

#6

• Dec 21, 2006

• #6

mustangfreak88 said:

I was going to replace the heads and the pistons when i do the rebuild, so with doing that, could i use the E303 or B303 cam?I will also be converting it over to mass air.

Click to expand...

You build the heads proper and buy dished piston you can put any cam you want in there.

 

mustangfreak88

New Member

Oct 13, 2006

12

0

0

Attleboro,MA

Dec 21, 2006

#7

• Dec 21, 2006

• #7

You build the heads proper and buy dished piston you can put any cam you want in there.

Click to expand...

that's what i thought. i just wanted to make sure