searching for more hp.

[02sport trac]

Anyone ever bolt on a blower to the 4.0 before? like a low output powerdyne 5-7 psi? Does the 2002 4.0 have ****ty pistons?

 

[occupationracer]

Im no expert, but on the explorerexpress website from the 01-05 sport trac have the same charger option, so i might guess maybe they have the same type engine. ive contacted Dave from the site about your very concern, and he asured me that there have been many projects done with no need to upgrade any part of the engine.Dead Link Removed