im lookin to fully rebuild a 4.6 i already have pi heads, i want to do cams intake an anything to get some good hp an torque out of it. any input that yall know of that has already been done would be great.

 

What are your plans for the truck?
How will it be used?
JL

 

Ya know if your doing a full rebuild,,,,it's only a little more to start with a 5.4
And you'll get more power and torque out of it.

 

i have the 4.6 block already. i want to do cams intake headers and any other stuff that will add power. i would like to have it run n/a an then add a proharger that will work with stock compression.

 

If you're going to rebuild the 4.6 in there already then here is your parts store.
ModMax - 4.6 and 5.4 Modular Experts

And also personally I have heard good things about these heads for the 2v from Mustang guys. Trick Flow Twisted Wedge Track Heat 185 Assembled Cylinder Heads for Ford 4.6L/5.4L 2V 44CC Chamber

 

yeah thanks for the site great prices on everything. is there a noticable gain with porting an polishing the heads?

 

For what you'll spend on PROPER portwork that'll actually work well ($2000+), you're better off starting with the TF heads. I know you can get heads ported for less, but you're getting what you pay for.
If you're gonna use the truck as a truck and tow with it, you're gonna need to keep the cam mild, if not stock. ALL of the aftermarket cams for a modular will give up torque and hp in the lower RPM range for max power where most street/strip cars will use it. Then there's the issue of the intake manifold. The truck intake manifolds are purposely designed to build torque low in the RPM range to make max torque and hp in the area where a truck needs it. To do this, it's terribly restrictive to keep air velocity high at lower RPM for max cylinder filling. This is great for towing, but sucks for making good power. You could use a car type intake manifold, and get good results, but just know ahead of time that you're gonna need more gear and a higher stalling torque converter(if auto) to get the truck moving.
You can make good N/A power on a budget if you know what parts to get ahold of. If you're even remotely thinking about adding a S/C at a later date-don't even bother with OE type pistons,etc. You're gonna need forged pistons, some good aftermarket con rods, good bearings, etc.
JL

 

yeah i have 4.88s went way to low tho, im goin to cut back to a 4.10s. i have 345 75 16 bfgs so i need gears of some sort. i do tow on the highway at 70.. witch 4.88s are to short. i found a cam from comp cams. "Xtreme Energy™, XE270AH
Excellent Torque, Better Low & Mid-Range Torque w/ Power" it looks promising but still not sure. i was lookin at the 4.6 to 5.0 stroke kit fully forged rotating assembly on the website link from hybris great price. thats really the only plans so far tho..

 

I have those cams in my Tbird.
NOT good for a truck, and those WILL NOT have safe PTV clearance with stock valves.
You need at most the XE262AH.
IMO-stroking an engine like the 4.6L with an already very long stroke for it's displacement just causes issues. In a truck though, it might work out OK. You'll want to keep compression up to around 10.5:1 to make it really good and responsive. If you're gonna order a kit for the shortblock, just spec the pistons accordingly.
JL

 

ok im tryin to get the most torque i can from a cam. im doin a vave job on the pi heads so clearance wont be an issue. how about intake manifolds will the pi intake for a mustang gt work, i know the throttle body on the mustang is sideways where the trucks are forward. injector pressure ideas.. an coil packs? oh an im using a set of shorty headers also.

 

A valvejob WILL NOT fix the PTV clearance issues with that 270AH. Those camshafts will not gain you any torque except for 4000rpms-up. You can use the Mustang intake, but be prepared to make adapters for the fuel line to attach to the rail, and a custom air inlet tube will be required.
JL

 

so with the air inlet tube your sayin it will be sideways instead of forward? an with clearance valve reliefs on the pistons will help some but i need to find a low rpm rv cam that will clear no problem.