has anyone just swapped manifolds on their near stock 460? im planning on going from a stock intake to a performer and i was wondering if it will improve power by a noticiable amount?

 

Do something with the exhaust system first. This is by far the most restrictive system in most 460 trucks.

 

you won't feel any differnce from stock to a performer. if you upgrade the intake you need to upgrade to at least a weiand stealth of better.

 

Like our other most humble member "Monsterbaby" "says dont ask me cuz I obviously dont know how to build Fords(or something like that)"
But I swapped my old stock intake for a Offenhauser (no ones favorite) Single plane, aluminum intake, and I got much stronger power up in the 3000-5000 range. It kicks and keeps kickin, it still makes power past 5500 rpms but thats about as high as I will rev it. Mine is in a truck, supposedly having the stronger "football" cast on the connecting rods and will safe to occasionally rev to 5500 rpms. I digress...
The new intake is about 100 lbs lighter though, (not much exageration).
I am happy with the effort of changing it, I think it will all add up, Carb, intake, exhaust headers, then heads... etc...and its fun too.

 

i already have headers, 2.5 in duals, and a 750 holley but i want to upgrade to a aluminum intake. i just dont want to lost any "off idle" torque. the truck runs in the high 14s is near stock and dependable enough to drive anywhere. i just dont want to lost any of those things. ive driven it 850 mi. pulling about 6500 lbs plus an over full load in the bed, it still pulled hard up hill. truely an amazing work horse of a motor. so which manifold will save more bottom end, performer or stealth???????

 

the stock will save more bottom end, but in my personal experience with running a stealth you don't miss any low end. I mean technically there is probably a loss, but when your talking 400lbs or so whats a few lb/ft here or there. You more than make up for it in the increase of power all across the power band.

The performer is basically an aluminum stock intake. the rpm, stealth, air gap even the offy which is single plane all retain your low end torque while increasing hp, just not as much torque as the stocker.

 

personally I would suggest the performer RPM, it might loose a little below 1500 rpm (I doubt it but might) but how often do you really use the engine in the idle to 1500 rpm range cause if you do get rid of the 460, and buy a diesel. the performer is more or less nothing more than an alum version of the stock iron intake really not a big improvement. JMHO

 

You use the engine torque below 1500 rpms everytime you start moving from a stop. And if you have a big load and trailer, you will know it.

 

question for ya do you have any idea how much torque you will lose using the performer rpm vs a stock intake? answer none. the rpm is a dual plane medium rise intake, and thus will actually improve you low end torque over stock, but might be a little lower than some dual plane low intakes.

 

hey smoke n tires heres a link to a thread on this from awhile back .its thread #19 fromthe mad porter on intakes and there uses on various combos.check it out .it should answere your questionshttps://www.ford-trucks.com/forums/s...=376764&page=2

 

Myself after porting my heads with the flow increase at low lift figures I might go with the Torker II. I have had the problem of shaping ports getting the seat work right and having manifolds that are set up for stock ports with aftermarket cams. The heads properly shaped for air flow far out weighs the hot cam for air flow. Reciently I pocket ported a set of Edelbrock heads for my boat engine which was stock except for a RPM intake and a 830 Holley. I swapped the heads and put the intake back on. It felt better but still had a lot of bow rise out of the hole. ried a 750 Holley no real differance. Next I swapped a Torqer II and put the 850 back on. The boat litterally jumped right out of the water accelerated like a jet boat. Tried the 750 on it couldnt feel any differance. Next I swapped out a RPM Air Gap ran both carbs on it couldnt tell the differance between it and the Performer RPM.

Having the same issue with a Torker on a 351C. The engine is built/ported to run up in the 8000 + RPM range but falls off after 6000 RPM. Torq @4500 470
HP @ 6000 498. With a sheet metal intake it should see more like 650 to 700 HP. This Clev has the broadest flatest torq curve of any C motor the dyno shop has ever seen and they are very ford oriented.

 

i think i like the sound of the performer. i crave that "tire blistering torque" right off idle and i dont want to lose it. my main reason for the intake is so the carb is matched square bore to square bore instead of the adapter, and the intake is better looking, lighter and cooler. the truck is almost 5000 lbs, rusty, ugly and turns high 14s in near stock form, awesome sleeper, what more could you ask for?

 

I am running a 86 460 dually with 4:10 gears pulling a 9000 lbs boat dry on a 40 ft trailer with a 5 spd manual trans boat carries 150 gal of gas filled. Pulling well over 12000 total trailer wt. I have so much low end at this point I can make this thing jump around like a semi worried I will pull the hitch off the truck. I have the performer on it now with 750 Holley.

 

its amazing the weight these trucks will pull. i was totally loaded down in the bed and pulling around 6500 lbs with the cruise on at 80 mph still passing people pulling the mountains in N.C. i went 850 miles that way with no problems. sometimes i would forget i had a load. i know deisels are hard pullers but turbo a 460 and see how it pulls.........