Small Block & Big Block Chevy Specific - 350ci conversion to 427ci...LS1???

hey i see alot of guys converting stock ls1 to 427ci.. Is this a whole other engine or a build up of a ls1?? very confused

well, it's actually a stock block with new larger dia. sleeves and a stroker crank. there is of coures old school sbc's using aftermarket blocks to produce 427+ cubes. if you didn't know, and if you're looking for the biggest baddest small block and money isn't an issue, World Products either has or is about to release the first aftermarket block capable of yielding 500ci"!!! hope this helps.