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New Edge Cobras
03-04 cobra short blocks?
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<blockquote data-quote="IUP99snake" data-source="post: 13362863" data-attributes="member: 7060"><p>I'm not trying to make this a "to stroke or not to stroke" argument because it goes a little beyond the scope of the OP's questions..</p><p></p><p>I can see where both of you are coming from. Ford chose the stroke in a 4.6 for a reason. There's probably a reason why they didn't go with a longer stroke, especially given how tempted the engineers must have been to stroke it to a 5.0. </p><p></p><p>There are a lot of variables that go into successfully increasing the stroke besides simply "increasing the stroke". Piston design, ring locations, skirt length, rod length, rod ratio, counterweight balancing and the piston skirt-to-counterweight clearance are just some of the factors that go into a well designed stroker kit. </p><p></p><p>With that being said, there are lots of people who have had great luck with a well engineered stroker kit. Similarly, a poor design warrants bad results. I saw a stroker kit for a 4.6 that was so poorly designed that the piston skirts were shaved off by the crank counterweights. *face palm*. </p><p></p><p>When Ford decided to increase the stroke (and bore) in the Coyote motor, they put a great deal of engineering into it to ensure there would be no issues associated with many aftermarket stroker systems.</p></blockquote><p></p>
[QUOTE="IUP99snake, post: 13362863, member: 7060"] I'm not trying to make this a "to stroke or not to stroke" argument because it goes a little beyond the scope of the OP's questions.. I can see where both of you are coming from. Ford chose the stroke in a 4.6 for a reason. There's probably a reason why they didn't go with a longer stroke, especially given how tempted the engineers must have been to stroke it to a 5.0. There are a lot of variables that go into successfully increasing the stroke besides simply "increasing the stroke". Piston design, ring locations, skirt length, rod length, rod ratio, counterweight balancing and the piston skirt-to-counterweight clearance are just some of the factors that go into a well designed stroker kit. With that being said, there are lots of people who have had great luck with a well engineered stroker kit. Similarly, a poor design warrants bad results. I saw a stroker kit for a 4.6 that was so poorly designed that the piston skirts were shaved off by the crank counterweights. *face palm*. When Ford decided to increase the stroke (and bore) in the Coyote motor, they put a great deal of engineering into it to ensure there would be no issues associated with many aftermarket stroker systems. [/QUOTE]
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