The idea was that with the re use of existing oem parts the only real major expense was the cost of the crank. Here is what I observed: New stroker crank $600. New KB smog pistons on ebay right now- $120 plus $30 shippping. Reuse existing rods. So thats $750 so far. Thats what I was looking at. Obviously if there is another grand in machining and what not its not feasible over a modern kit. Someone mentioned piston to valve clearance is an issue- I assume this is why the old Bouchillion kit recommended the mopar 484 cam. Anyway the thought was an econmical 500" motor with stamped steel rocker arms and a long duration hyd flat tappet cam. The traditional chevy grind cams for mopar dont have a lot of lift for their duration and PAW used to have their in house name brand cam/lifters for under $125.