those rims are sweet! I think they are the ones on the 67-72 chevy truck on dazed and confused! Although if you don't plan on using the rims and you have different pickups for your fiddle then I would do it, two bolt or not. Hell two bolts will handle ALOT of power. plus the stroker crank is worth at least $200 or so maybe less, but it sounds like a deal to me. Word to the wise: I bought a 454 complete but disassembled for around $800, it is a 4 bolt but the guy said it was ready to build, and it wasn't!! so be careful, ( look for cracks in the heads)