Why will your motor or tranny go if you upgrade too much?I just bought a 1993 chevy caprice police interceptor. it has 180,000 miles on it. this car is pretty quick with the 350 in it but if i uprgade to much my motor or tranny will go so I was wondering if a 454 would fit in it or what was the biggest and best motor to put in it.
Doesn't the interceptor have basically the tow pack with a tranny cooler? I wouldn't worry about the mileage too much if it has been maintained by a local agency for its whole life thus far.