Best year 5.0 motor to get?

B

BlueBronk

New Member

Feb 26, 2004

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0

Feb 27, 2004

#1

• Feb 27, 2004

• #1

New to the 5.0 world so forgive the dumb questions. Thought I posted earlier , but can't find it. I am doing a conversion and wanted to know the best years of the 5.0 to use. It may be used as a 331 or 347 stroker eventually. I have heard that the 89-91's are the best to build. Any truth to that? I have a great deal on a '93 w/ 90K on it out of a GT for almost free, minus the computer box and harness. How much are comp.box and harness's in used condition. I am assuming that the '93 is a roller motor and I heard they had hyprtuenic pistons. Is this a bad thing about the pistons? Any info and advice is appreciated.

Thanks Much,

BlueBronk

 

9

92BlackGT

Member

Aug 4, 2003

182

7

17

Tinker AFB, OK

Feb 27, 2004

#2

• Feb 27, 2004

• #2

89 - 92 because they have mass air and forged pistons. 93 has those hyperuretic pistons....lighter but weaker....not good for nitrous.

 

Michael Yount

Mustang Master

Apr 10, 2002

9,039

6

79

Charlotte, NC

Feb 27, 2004

#3

• Feb 27, 2004

• #3

The switch to hypereutectic pistons occurred during the end of the 92 production run - so there are some late-build (july/aug) 92's that had hypers in them. If you're gonna build a stroker, the rotating bits are gonna change as are the heads and intake/exhaust. So basically you're just buying a block. Any year will do. Most folks like the A9L computer as it seems to tolerate changes the best.

 

IndyBlk5.0

New Member

Nov 24, 2003

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New Whiteland, IN

Feb 27, 2004

#4

• Feb 27, 2004

• #4

hyperuetectic pistons dont like lean situations... detonation kills them... if you plan on doing a power adder in the future (nitrous or some type of forced induction), stay away from hyper pistons... I am doing a hyper pistoned 306 build right now becuase i am doing no power adder at all, hyper pistons will be just fine. Now when you do a 347 stroker for example, you will pretty much be changing out all your internals as stated above...

 

C

CobraGT87

Mr. Speed Density

Founding Member

Apr 22, 1999

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Feb 27, 2004

#5

• Feb 27, 2004

• #5

BTW, 86-early 92 all had forged pistons, not just 89+.

Just some FYI

 

TheDamned

"I am Canadian and Damned for it!"

Jul 22, 2003

457

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Montréal, Québec, Canada

Feb 27, 2004

#6

• Feb 27, 2004

• #6

what about the '95?

 

1

1992blkGT

New Member

Mar 28, 2003

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Beaverton, OR

Feb 27, 2004

#7

• Feb 27, 2004

• #7

TheDamned said:

what about the '95?

Click to expand...

It has hypereutic pistons. As do all present Mustang GT's.

 

SCcopcar

Founding Member

Nov 21, 1999

326

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Oklahoma

Feb 27, 2004

#8

• Feb 27, 2004

• #8

85 was also forged

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

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129

Feb 27, 2004

#9

• Feb 27, 2004

• #9

if you click on your username, and hit the link for threads started, you will find your threads.
here is your other one:
http://forums.stangnet.com/showthread.php?t=430463