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Message: <blockquote data-quote="snakebit95" data-source="post: 559474" data-attributes="member: 11394"><p>I guess it depends on what the future holds for the little motor. If you plan to spray it or strap a supercharger on it, the stock stroke 351W is a much better alternative because of the much stronger block. I have seen plenty of stock stroke Windsor motors that would kick the crap out of a 347; but using the right parts is the key. The Windsor block has larger mains, main fasteners, head fasteners, e.t.c. It is a much better foundation to build on if using a stock block. Aftermarket blocks are a different story. If you are going to keep it naturally aspirated, the 302 based block is fine; even with a 347 kit in it and will not lighten the wallet like the Windsor build will. I have been there, done that. I started with a H/C/I 302, then wanted more. Built a high reving 306 H/C/I. Then built a Mexican block 347 because I wanted even more. Then I started to worry about the block and whether is was going to fail on me with more power and more RPM's. Now I am at a Dart 438W which is almost finished and have a foundation that I can really build on and not worry about the block. Everybody can make an argument for each setup, so it really comes down to what you expect from it in the future and how much money you are willing to spend.</p></blockquote><p></p>