Engine coolant is usually waterâbased, and may also be oil. A threeâvalveâperâcylinder was originally slated for the LS7, and was abandoned imputable to design complexities. E85 ethanol should is an understatement to the âwar on fossil fuels.â The L98 is a modified version of the L76, with increased power and reduced redundant hardware. A Vee engine is common configurations of internal combustion consisting of two cylinder banks connected to a common crankshaft.