Quote:
Originally Posted by Elmo370z
4.5l you will have to deal with alot.of heat issues
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There are mods that can be done to mitigate the heat issue. Bullitt took several of these mods and will be bringing them over to his 4.0L build. Remember going to a 4.5L means your pushing 100mm pistons through the cylinder. This large of a piston creates more friction and vibration which in turn creates more heat. If the proper mods are done you can have a reliable car. Bullitt drove his car 3 hours in 100* weather without over heating. Then again he also took the necessary steps to keep the motor cool.