Toyota in Nascar.What cylinder heads do they run on their cars?

All the V8 Toyota's have an overhead cam engine and they aren't allowed in Nascar.Toyota in Nascar.What cylinder heads do they run on their cars?http://bleacherreport.com/articles/18967鈥?/a> All NASCAR engines are overhead VALVE with the camshaft in the bottom of the engine with push rods to operate the valves.Toyota in Nascar.What cylinder heads do they run on their cars?I haven't really been able to find ant specifics on any of the engines that are used. But I do know when Toyota first came in they had to actually use Chevy's design and I'm sure TRD (Toyota Racing Development) made little changes, just used the Chevy as a base to work off of. As far as I know Toyota's engines are unchanged from the time they came in, of course I'm sure they've made little changes but never done a whole engine redesign like Ford did with the FR9.