And then came what could of been the best racing series on the planet. The Can Am series. Except of course for cars like the McLaren's, Porsche 917 and Shadows. In 68 the Can Am saw cars powered by Chevrolet (aluminum block 427), Oldsmobile ( a twin turbocharger big block), a Chrysler Hemi and a Ford SOHC 427.
Of course one reason the US production based engines got written out of the rules might of had something to do with European manufactures ( Ferrari anyone) lobbying the FIA
I like it, but I can't see Shelby using a BMW engine over (any) U.S. option...Kevin Renner said:I had a thought this morning. There was one other aluminum block V-8 in production in the early '60s. A little bit smaller displacement than the Windsor or the Buick/Olds and most likely a bit smaller in overall size to.
https://en.m.wikipedia.org/wiki/BMW_OHV_V8_engine
It would be interesting to see just how output could of been had from it.