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there is a difference By Jack - 12/27/2001 10:27:53 PM; IP 207.174.212.131 Due to the stroke difference from the 360 to the 390 the pin heigth is different. If you install a wrist pin in both pistons at the same time and compair the tops you can see the difference. Due to the large deck height of the ford blocks (the distance from the top of the piston,to the deck on the compression stroke),you can put the 360 piston with a 390 stroke and have what they called a 4V 390. All this does is put the piston closer to the top on the compression stroke and increase the compression. This is a preimum fuel engine only.

This thread, so far...

Skip Navigation Links.  Pin height -- Louie, 12/27/2001  Doubtful... -- Dan Davis, 12/27/2001  RE: Pin height -- Bob, 12/27/2001  Sometimes yes, sometimes no. -- Dave Shoe, 12/27/2001 there is a difference -- Jack, 12/27/2001  Not always. -- Dave Shoe, 12/28/2001  RE: Not always. -- Bob, 12/29/2001

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