Lotus 49 (Cosworth DFV V8)
Repco Brabham BT23A (Repco 740 V8)
Web sites that I like include:
Old Racing Cars website http://www.oldracingcars.com/
Formula 5000 website http://www.f5000.org/
Another historic race cars site worth a look http://www.summit.net.au/~simmsy/