ive heard that you can turn a 4.0 into a 4.7 by utilizing a 4.2 crank and boring it over to make up the rest. how much power can i expect to get out of it after that. also, Cliffor Performance makes a head for the 4.0 that delivers 100hp more!!! can this fit on the motor after beeing bored out? If so that is a deadly combo, add an exhaust, intake, header, and maybe even a supercharger and you have some real power!!!
please discuss.
Tim
please discuss.
Tim
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