Yes, NASCAR racing engines use antifreeze. There is no other way for them to keep the engine from overheating. NASCAR engines are similar to street engines but with more horsepower.
No, NASCAR engines are naturally aspirated and turbochargers are prohibited (not allowed).
No, they use V8 engines.
NASCAR uses stock engines, with many of the racers using the engines created by Roush-Fenway. These are four stroke engines that reach horsepower of over 800.
Yes
The compression ratio for NASCAR engines is limited to 12.0:1.
In team shops.
Water is used asa coolant in NASCAR races. Ethylene Glycol is prohibited by the rules because it is so slippery on pavement.
Nascar do allow the use of Cometic gaskets on the racing cars. The cometic gasket is produced with today's lightweight engines in mind and provides extra performance and power output
360 c.i. v8
NASCAR engines have been known to have 6 cylinders, but most prefer to run V8s.
Most NASCAR race teams build their own engines. Some smaller teams lease engines from a team that builds engines. Building your own engines can allow a team to customize their car to their drivers style and abilities. But teams do not have free reign when it comes to building their engines. NASCAR has strict rules and guidlines that the teams must follow when it comes to the engines.