Forget that, even more old school is to grind down the stock crank journals to SBC size and the difference there is the amount of stroke you gain. However, as mention, boring yields little since the size increase is very marginal. Plus, it should be done to what is needed by the machine shop to clean up the cylinder walls. If they say they only need .01" over, then that's what you do. Going to .03" or more off the bat means you'll be less likely to rebuild the block in the future. Some popular stroker options for Ford engines is throwing a 302 crank in a 289 to get 302, the usual 331/347/349 stroker packages, the old school way of throwing a 400 crank into a 351W/M (though it's harder w/ the W and is not worth it anymore w/ 393 and 408 packages), a 428 crank in a 390 or 427 (which yields 410 and 454 respectively), 460 crank in a 429 to get 460ci and a 514 crank in a 460, and lastly, a 302 stroker package for the 281 (4.6). Pick what you like.
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