Dp, thanks for the engine clarifications. I've read many of these 3.5CSLs reached way over 200 mph (220-230 mph ?) during the Le Mans' Mulsane straight. What about those 800hp+ turbocharged monster? Too bad the CS chassis's couldn't handle the immense power and heat of these engines.
BTW, next to F1, IMSA (glory years of the mid 1970's-mid 1990's) has always been one of my favorite racing series.