[jvpakabatman]

Im 16 and want to get into engine rebuilding. I want to build a engine from the block that would fit a 2001 Mustang Gt. I just want some ideas oh what kind of parts to buy that would give me a high power engine. CAN ANYBODY HELP ME!!!!!!!!!!

[Dendro_4.6]

Are you doing this by yourself, or will you have someone helping you that knows there way around a car? I don't recommend doing that much without it, although I am not doubting you, but working on a Modular (aluminum) engine for your first rebuild can be a big issue. If you are going to anyway, then here is a good plan for high HP.

1. A supercharger (quickest way for huge gains. $4500)
2. New cylinder heads (get more air in the engine. $1200)
3. New exhaust (get more air out of the engine after ignition. $600)
4. Bigger intake (again more air. $200-$800)
5. Bigger cams (the air thing again, keeps your valves open longer, don't get too big or you will run into trouble. $400-$600)
6. Trans (gotta have something that will handle the power. $2,000-$4,000)
7. Suspension (your car needs to be balanced, the stockers aren't good enough for high HP. $500 on up)
8. Forged connecting rods (If you get over 400-450 hp, you will need these, or you can throw a rod. $500 on up)
9. Dyno Tune (you will need this to make the CPU work with all the mods. $500)

My recommendation:
Go buy a four banger or a V6 and learn how to work on that first. However, if you do jump right into a GT, remember this:

Take your time, DO NOT GET AHEAD OF YOURSELF WITH ALUMINUM, pay close attention to details, and research before you do anything!

Thanks,

[tripleblack]

Dendro gave good advice, I'll add my own bit:

1. Plan your build. Determine which motor you NEED to accomplish your goals BEFORE visiting the junkyard. Be sure to keep the receipt in case you end up with a lemon. Make sure the crank will turn freely. If you plan on replacing everything in the motor anyway, you just need to make sure you get a solid used motor that will benefit from a full overhaul. If the idea is to just freshen it up and use it, you HAVE to buy the motor that can handle the power you plan to make (03-04 motors have forged components and steel cranks - and can handle a lot more power than the run-of-the-mill 4.6). If you are building a motor for a Mustang, try to find a motor FROM a Mustang. It is of course possible to modify a Lincoln motor to run in a Mustang, but why borrow extra hassle and costs when you don't have to?

2. Purchase a manual for rebuilding 4.6 motors. There are several books out there, and the Ford shop manual would be a good buy as well.

3. 4.6 motors came in a variety of versions, including aluminum blocks and iron blocks, and with SOHC and DOHC heads, etc. The older Cobras did NOT have the same forged internals that the 03-04 versions had, for instance. 05+ and Mach 1's are aluminum block motors, and have unique intakes, etc.

ALL these options make for a potentially interesting build. Stroking the 4.6 is a relatively expensive way of producing 9% more displacement (5.0 is about the limit for stroking the 4.6), and really doesn't do much for power production considering all the trouble it takes. Maximum N/A power results come from DOHC builds with forged rods and pistons, steel cranks, and with lots of porting and polishing on those heads. Unfortunately, these are also quite expensive motors, and all the new parts you add (4 camshafts, for instance) run the price and complexity up as well.

Learning your way around the cams and timing chains/tensioners is an essential element in building 4.6 motors.

[Dendro_4.6]

Well said tripleblack! If you want to do anything to the top part of the engine (excluding the intake), off come the chains!!!!

Just buy a GT, slap on a bigger intake, better exhaust, and a supercharger... you'll have plenty of power. If you are wanting more, I recommend buying an older car that you can just drop a crate motor into. For the money I have spent already, I could have bought a crate motor with a lot more N/A HP.

Thanks