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.

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Old Dec 4, 2006 | 02:45 PM
  #1  
drewguere's Avatar
drewguere
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Default 347

I have a 302 that is bored .60 over. I would like to stoke it as well. What is involved with that?

Do I just need a new crankshaft, and new connecting rods? Because my pistons already are set up for the .60 over bore.

This just seems way too easy and I feel like Im probably forgetting about a BUNCH of things...

Can someone explain this whole thing to me...
Old Dec 4, 2006 | 02:50 PM
  #2  
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Default RE: 347

you need to get on jegs or summit racing and look up one of their rotating assemblies.
Old Dec 4, 2006 | 04:26 PM
  #3  
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Default RE: 347

a 347 is:

4.030" bore with a 3.4" stroke
Old Dec 4, 2006 | 04:32 PM
  #4  
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Jared_blown5.0
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Default RE: 347

you would have a 352 with you 4.060 pistons
Old Dec 4, 2006 | 05:38 PM
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Default RE: 347

If your gonna make big power with that don't be surprised if you ventilate that block!
Old Dec 4, 2006 | 07:06 PM
  #6  
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Default RE: 347

think you have to have the bottom end machined for clearance since you would have more stroke. the journals need to clear the block.
Old Dec 4, 2006 | 10:51 PM
  #7  
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Default RE: 347

I think it's doable but how much strip time to how much street time are you planning to do?
If it's a strip only car you can pour the block full of cement and not really worry it...
Get block 'sonic tested' at a good machine shop before you make big plans. If block has walls of about .120-.140 you will be okay with cement, MAYBE........
Old Dec 4, 2006 | 11:17 PM
  #8  
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Default RE: 347

cement? am i the only one that has never heard of this? i realize that track only cars wouldn't require cooling systems, but fill with cement? that'd be heavy as ****
Old Dec 4, 2006 | 11:26 PM
  #9  
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Default RE: 347

.060" over? Those poor, poor cylinder walls.
Old Dec 4, 2006 | 11:34 PM
  #10  
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stocksuspension
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Default RE: 347

u need a whole piston designed for a 3.4 stroke.. i u use the .060 pistons u have now u will be about 1/2 inch positive deck!!!!



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