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Who is the smartest Engine Guy in here?

5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Who is the smartest Engine Guy in here?

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Old 03-15-2006, 09:39 PM
  #41  
wildcobrar
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Default RE: Who is the smartest Engine Guy in here?

I believe you have an early 80's 255 cubic inch V8. They came in the 80's shoe box fairmonts, tbirds,Zephers. Here are the specs; 3.68 bore,3.00 in stroke, and it has the same deck hieght as the 260, 289,302 and shares the same main bearing diameter, the same rod bearing size and it has the longer 260/289 inch connecting rods. If you look on the bottom of the block at the frost plug area neer the rear of block you will find an engine number like D1 or D2 if it is a C5 it would be a 260 1960's engine. My bet is it is the 1981 or 82 255.
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Old 03-15-2006, 10:57 PM
  #42  
S351R13
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Default RE: Who is the smartest Engine Guy in here?

Its a 255.
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Old 03-15-2006, 11:18 PM
  #43  
Tims 88GT
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Default RE: Who is the smartest Engine Guy in here?

yea who is the smartest engine guy? yes all the roller blocks have xxx
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Old 03-15-2006, 11:36 PM
  #44  
uedlose
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Default RE: Who is the smartest Engine Guy in here?


ORIGINAL: wildcobrar

I believe you have an early 80's 255 cubic inch V8. They came in the 80's shoe box fairmonts, tbirds,Zephers. Here are the specs; 3.68 bore,3.00 in stroke, and it has the same deck hieght as the 260, 289,302 and shares the same main bearing diameter, the same rod bearing size and it has the longer 260/289 inch connecting rods. If you look on the bottom of the block at the frost plug area neer the rear of block you will find an engine number like D1 or D2 if it is a C5 it would be a 260 1960's engine. My bet is it is the 1981 or 82 255.
Exactly, I am with wild and s351r
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Old 03-15-2006, 11:50 PM
  #45  
silver91gt
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Default RE: Who is the smartest Engine Guy in here?


ORIGINAL: wildcobrar

I believe you have an early 80's 255 cubic inch V8. They came in the 80's shoe box fairmonts, tbirds,Zephers. Here are the specs; 3.68 bore,3.00 in stroke, and it has the same deck hieght as the 260, 289,302 and shares the same main bearing diameter, the same rod bearing size and it has the longer 260/289 inch connecting rods. If you look on the bottom of the block at the frost plug area neer the rear of block you will find an engine number like D1 or D2 if it is a C5 it would be a 260 1960's engine. My bet is it is the 1981 or 82 255.

true a 255CI 4.2Lcame in 1980-1982 mustangs and capris.
my 82 capri had one of these with some 78 302 heads on it.
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Old 03-15-2006, 11:55 PM
  #46  
schwindty
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Default RE: Who is the smartest Engine Guy in here?

I got a 302 EFI tonight full engine from top to bottom with a roller in it already for the hassle, therefore I am happy this happened! hahah I got what I need now! with some xtra parts to boot
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Old 03-15-2006, 11:56 PM
  #47  
Tims 88GT
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Default RE: Who is the smartest Engine Guy in here?

kool
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Old 03-16-2006, 12:09 AM
  #48  
tinman
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Default RE: Who is the smartest Engine Guy in here?

1) only '85 and later 302 blocks are made for the roller set-up.
2) an '85 will have a code saying 'E5' as E was Fords prefix code for 80's stuff.
3) any 260 block will be a code 'C' and I think they were only made '63-'66 anyway. They are a 4" bore and a 2.87 stroke. The 302 (5.0) is a 4" bore and 3" inch stroke........
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Old 03-16-2006, 12:15 AM
  #49  
gspfunk
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Default RE: Who is the smartest Engine Guy in here?


ORIGINAL: grabbem88

why does the head to me say 4.2 liter?
That's what I see....
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Old 03-16-2006, 12:31 AM
  #50  
tinman
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Default RE: Who is the smartest Engine Guy in here?

I concur with the 255 idea.
One of the worst sh-t piles Ford ever made, they gave up on them after 2-3 years........
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