build a nascar motor from left over parts----one of my friends started buying out date nascar stuff on racejunk.com? he now has one race car running and 1 1/2 motors waiting to build---the heads have bigger ports than his 426 hemi blower motor---in fact one set of heads he bought didnt pass inspection because the ports were too big--he got them for $300----then he turned around and bought left over titanium valves for $1 each----he did buy new rods because he wanted to drop the compression to run on pump gas---all the parts come from race teams and they even noted what race they ran and how many miles----he spent about $10,000 building the motor but said that was what he put into his previous 400 stroker and 15 years prior spent about the same on the 426 hemi---bob