Cost to Rebuild 4.6L ? How to get more HP
Hey Guys , for those of you that have rebuilt a 4.6L F-150 4x2 Motor, what is the cost ? It runs great and reliable as all hell, but im close to 110K and its starting to slowing down some up hills and grades. Seems like im shifting gears alot. Im wondering if its worth it to go this route and figure out during that time how to make it wake up alot . Can you do anough with the 4.6L to get say 325Hp or is it less to find a 5.4L used and rebuild it. I just started seeing oil leaks from rear main and power steering hose. Never had i thing wrong with this motor in 105k miles . Only 1 trans replacement and thats it.
Here's my spec's as it stands right now.
K&N direct flow intake
3in exhaust -Cat Back w/ flow master 50 ( Looking for JBA's Soon and No Cats ) No Smog Laws to worry about .
Regeared to 456's and installing 35's next week.
2nd ----- What can i do to this 4R70W trans to make it stronger for towing
a 6000lb boat ??????????????????
Im in Southern California if someone has a F-150 Motor Builder out here to go see.
Thanks for the help guys, Kenny