[mustang_mike_2003]

becarefull, before you go pulling off GT 40 parts to install on to your 5.0, remember that theres a diffrence in the gt40 heads, and the gt40 (P) heads..the gt 40 heads will bolt right up with out any moifacation i believe... but im sure that the gt40 P heads require gt40 p exaust headers AS STOCK HEADERS WILL NOT FIT... and i also believe you would need the spical gt40 p inake..sure about the eause, but not sure about the intake....why havent you guys told him about gt40 p heads catch ???..i though everyone knew that.... if i were you id slap on a set of gt40 heads and buy a crome cobra intake from ebay..or just pluck a stock one off a explorer... though the gt40 p heads are better ..youd have to order a set of after market gt 40 p conversion headers, witch are NOT leagle to have when its time to get your im test done... but anyways just stay away from the gt 40 p heads if you want cheap power.... another sugestion is to install the mas air from a sn95 with a 5.0..the sn95's have bigger injectors as well i think... and i believe that some lincolins (89-93 ish) have the same upgraded mas air and injectors... am i right guys?? mmmm oh and the sn 95 altanator makes more amps then the stock fox..its a popular swap!! but youll need to modify the bracket alittle to make it fit..and make sure to cut the old wiring harness out of the sn95 mustang or lincolin that it came out of as youll need it to splice into your wiring harness...i believe that the main crank pully off of some rangers have smaller crank pullies but youll have to take some mesuring tape with you to the junk yard and compare AAAAAAAAAAANNND dont forget about the diffrential, and RING AND PINION from rangers and explorers!!!! some have 4.10's (my favorate) and 3.73's and that my friend is the best suggestion youll find on the thred so far... if you dont have a limited slip diffrential on your mustang try try to find a ranger, explorer, mountaineer, or lincolin mark, with a limited slip set up...BUT if your doing this make SURE there in good condition AND what ever you do have a pro install them at a shop!! as the old bearings and crush sleevs will be no good..the shop shouldnt charge you more then 200-300 bucks... and dont forget that if your doing this swap to make sure to install some new clutch packs in your simited slip diffrential while your at it..some require a special rear end fricition modifier and using standard gearoil will destorie it...check the service manual and have fun with those junkyard go fast parts..its the american way brotha