Is a F-150 4.2 motor swap really worth it?
#1
Is a F-150 4.2 motor swap really worth it?
I have a 2000 v6 autoconvertible this is my first car andI'm just wantingto give it a little more power with out spending to much money($1000-$1500)would a swap to a 4.2 be a good way to do that? I read some were on here that it only gives you like 10rwhp but like 35rwft. How much time do you think it would take off my 0 to 60 and 1/4 times?
Here is what I have on my car now:
K&N drop in, with silencer delete.
MSD 8.5mm High Performance spark plugwires.
FlowMaster doul exhoust with H mid pipe and headers off a 97 mustang.
Diablosport tuner.
and I'm getting 4.10 gear and a Ford t-lok installed this tuesday, I can't what to seewhat thisdoes formy stang!
Anywaythis my first post so thanks in advance.
Here is what I have on my car now:
K&N drop in, with silencer delete.
MSD 8.5mm High Performance spark plugwires.
FlowMaster doul exhoust with H mid pipe and headers off a 97 mustang.
Diablosport tuner.
and I'm getting 4.10 gear and a Ford t-lok installed this tuesday, I can't what to seewhat thisdoes formy stang!
Anywaythis my first post so thanks in advance.
#2
RE: Is a F-150 4.2 motor swap really worth it?
I think its a good idea, but for 1,000-1,500$ you could do a nitrous kit and tune.
Just depends on what you want, I'm sure lilroush will be in soon to tell you about his 4.2 swap.
Just depends on what you want, I'm sure lilroush will be in soon to tell you about his 4.2 swap.
#4
RE: Is a F-150 4.2 motor swap really worth it?
nitrous isn't really my thing i'm tring to keep it n/a for now but thanks and I have thought about it.
How much horsepower and Torque will the swap plus P&P the heads and intakes give me?
How much horsepower and Torque will the swap plus P&P the heads and intakes give me?
#5
RE: Is a F-150 4.2 motor swap really worth it?
if you want NA then yes do it and build it while it is out of the vehicle then swap it
if not, get a shot of nitrous and buy a 4.2 and do what you want with it so that way when the 4.2 is complete you can put a huge shot on it, andblow up the 3.8 so you can give yourself a legit reason to do the swap
if not, get a shot of nitrous and buy a 4.2 and do what you want with it so that way when the 4.2 is complete you can put a huge shot on it, andblow up the 3.8 so you can give yourself a legit reason to do the swap
#6
RE: Is a F-150 4.2 motor swap really worth it?
The 4.2L is a stronger engine when it comes to the steel chankshaft, as for the rods and pistons they arent much better off than stock, infact they may even be the same as stock, I havnt looked far enough into them.
The block itself is the same as the 3.8L btw, its the crank in the 4.2L that makes it a 4.2L.
If it were me I would buy some forged rods, forged pistons (Dished or flat dependant on what you want to run) and have a shop do the work for you. Get some good tri-metal bearings for it and a new timing chain, oil pump and lifters.
You wont be very much into that kind of build unless you go with a long rod setup which would be ideal. The rods in that case are 351W rods just under 6" long, but the pistons are a custom set that you need to order from Supersix motorsports and those will run you about $700 last I checked.
Porting the heads is worth it but I cant tell you how much power they will give you without knowing the intimate details about your build. You can expect anywhere from 15-30hp in a broad guesstimate, more on a forced induction setup.
BTW, ported heads wont do you much good unless you port your intakes too and get a TB to make. A 70mm would be a good match for that kind of setup.
I also suggest changing the cam, but you dont have to, but you will get the best performance out of your new found flow with a cam.
While everything is down and apart I also suggest asking the machine shop to double key the crank for you in case you ever do a M112 roots, twin screw or centrifugal SC swap onto it.
They will need to machine your dampener to accept the 2nd crank key, or you can have a custom dampener made by ATI (i think ATI.)
All of that will add up pretty quick in the cash range but you will be very happy you spend the extra time doing this.
I also suggest an APR main and head stud kit for strength and sealing under boost, also check out a spiral lock for the heads. Thats a groove machined into the block to help the head gaskets seal.
Also like said up top, build the engine outside the car and just be easy on your stock one untill its done.
Hope that helps ya, I am sure I left a few things out but other will point them out for you
-Eric-
The block itself is the same as the 3.8L btw, its the crank in the 4.2L that makes it a 4.2L.
If it were me I would buy some forged rods, forged pistons (Dished or flat dependant on what you want to run) and have a shop do the work for you. Get some good tri-metal bearings for it and a new timing chain, oil pump and lifters.
You wont be very much into that kind of build unless you go with a long rod setup which would be ideal. The rods in that case are 351W rods just under 6" long, but the pistons are a custom set that you need to order from Supersix motorsports and those will run you about $700 last I checked.
Porting the heads is worth it but I cant tell you how much power they will give you without knowing the intimate details about your build. You can expect anywhere from 15-30hp in a broad guesstimate, more on a forced induction setup.
BTW, ported heads wont do you much good unless you port your intakes too and get a TB to make. A 70mm would be a good match for that kind of setup.
I also suggest changing the cam, but you dont have to, but you will get the best performance out of your new found flow with a cam.
While everything is down and apart I also suggest asking the machine shop to double key the crank for you in case you ever do a M112 roots, twin screw or centrifugal SC swap onto it.
They will need to machine your dampener to accept the 2nd crank key, or you can have a custom dampener made by ATI (i think ATI.)
All of that will add up pretty quick in the cash range but you will be very happy you spend the extra time doing this.
I also suggest an APR main and head stud kit for strength and sealing under boost, also check out a spiral lock for the heads. Thats a groove machined into the block to help the head gaskets seal.
Also like said up top, build the engine outside the car and just be easy on your stock one untill its done.
Hope that helps ya, I am sure I left a few things out but other will point them out for you
-Eric-
#7
RE: Is a F-150 4.2 motor swap really worth it?
ok I think I under stood all of that and it sounds like a little more money then I'm wanting to spend with collage coming up and all, but it was a help and I'll definitelygo with the idea of building it out of the car cause this is my DD. what do i need other then a F-150 motor? what years will work with my late 2000 stang?
thanks again I know I'm asking a lot of Questions I just want to learn as much as I can before I start this project.
thanks again I know I'm asking a lot of Questions I just want to learn as much as I can before I start this project.
#8
RE: Is a F-150 4.2 motor swap really worth it?
As far as I know 97+ 4.2L out of the F150 will work, at least the block and the heads will work.
97-98 for sure
The 97+ is also an IMRC design so unless you want IMRC's you will need to delete them or buy a 99-00 lower intake manifold from a mustang.
97-98 for sure
The 97+ is also an IMRC design so unless you want IMRC's you will need to delete them or buy a 99-00 lower intake manifold from a mustang.
#9
RE: Is a F-150 4.2 motor swap really worth it?
I just did a google search and it looks like the block and heads are the same frlom 97-2005.
I dont see why they would be any different for 06-08 because they didnt change the engine as far as I know.
Call up Supersix motorsports to find out for sure. or visit www.google.com
I dont see why they would be any different for 06-08 because they didnt change the engine as far as I know.
Call up Supersix motorsports to find out for sure. or visit www.google.com