Yes
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.
The teams are always selling used race cars for use in lower NASCAR racing classes. If you want something more new, without shelling out all that dough for a shop, equiptment, research, and so on, most of the teams would be happy to take care of your needs, provided, you have the cash, and the talent to pilot it. I think Hendrick still offers a rental program, where, he will rent you a car that will more than qualify, and, I think he will even rent you a team to pit it, and a tuner to fine tune it. That would be my choice. A proven winner, and you return it until the next race. What more could any racer want?!
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
Cast Iron 5.7L V8 Aluminum cylinder heads 358 c.i. max-800 HP
No, NASCAR engines are cooled by water. Ethylene glycol cannot be used due to the fact that if there is a wreck, the track will remain slick in that area and a hazard. In addition, it would not be good for the environment.
The cubic inches of the engine in a NASCAR race car must be the same as the cubic inches of the street car engine they represent. (you can't get a V8 engine in a Camry so the previous line is false.) Other than that there is virtually nothing similar between a NASCAR engine and a street car engine. Most street cars today use advances in fuel efficiency such as fuel injection, electronic ignition and a host of sensors and vacuum control to help keep pollutants low. NASCAR race cars still use the tried and true technologies of a bygone era such as carburetors and distributors. Also, most of the engine options for the street cars these race cars are modeled after use overhead camshaft (OHC) and a front wheel drive configuration, whereas the race car engines use overhead valves (OHV) and a rear wheel drive configuration. However is is important to point out many sports cars and larger vehicles (trucks, vans, SUV's) still use OHV engines and real wheel drive. NASCAR engines even run on leaded fuel still. A NASCAR engine can cost over 1 million dollars to build.
Restrictor plates debuted in August 1970 at Michigan International Speedway and were used for all tracks. They were phased out in 1974 as teams went to smaller engines but returned in 1988 for Daytona and Talladega after speeds overtook ability to keep the cars on the ground.
No. Nascar does not allow nitrous oxide.