309 [402] with a 454 crank is not an uncommon set-up...basically a "stroked 396". If you go on the web and type in "396 stroker BB" you will see lots of info. A stock 454 cast crank is fine for most builds...if you have a forged one, use it. Depending on the over bore you can end up with a 434 or 440 CID engine. You will probably need to do some grinding on the lower part of the block for clearance...if you have a 4 bolt L78 block, then the reliefs should already be cut in the top of the bores for the bigger valves. This combo will make lots of torque with a "sneaky" presentation". Of course, most folks will argue that it is just as cheap to build a stroked 454..but, many of us have a soft spot for the little rat.
wilma [img]<<GRAEMLIN_URL>>/
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