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Message: <blockquote data-quote="snakebit95" data-source="post: 560103" data-attributes="member: 11394">What cam? And there is more to it than just heads cam and intake. Its how the car is set up. So your telling me that if you put a 347 set up with the right heads intake (carb efi what ever) and then did the same to the 351 and put it in the same car that the 351 would be fasteR?</blockquote>I am not trying to turn the OP's thread into a 351 versus 347 is faster debate. My point was that a stock stroke Windsor can run just as good or better than a 347 if the right parts are used. Never did I say that the 351 will always win over a 347. The 351 is simply a better platform to build from if you plan to use a stock block to make some serioius power in the future. If you really want to get into the details, any 347 will require an aftermarket crank. What would happen if I used an aftermarket stock stroke Windsor crank that has been cut down to Cleveland size mains and 2.1" rod journals and used crank spacers in the block (seen it done a few times)? Now we have a crank that is as light as or lighter than the 347 crank. You have more stroke and a lighter rotating assembly in a stock stroked Windsor package. Oh yea, the 302 block is bored .030, so we need to do the same for the Windsor. Now we have a 357W versus a 347. To make it easier, the aftermarket companies already offer a block with mains sized to accept this type of crank configuration. Hope this helps in some way.[/QUOTE]