4.6L 2v Discussion forum for the 4.6L 2v Mustangs

4.6L engine build thoughts?

Old 03-25-2011, 12:27 PM
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4.6L engine build thoughts?

Ok I have a 96 mustang gt auto vert here is what I have done to the car do far jlt cai, upr underdrive pulleys, 75 mm bbk throttlebody,75 mm upr intake plenum, 75mm upr intake spacer,msd coil packs, Frpp 9pm spark plug wires,mac x pipe, magnaflow catbacks and an sct tuner. I also have 3.73 motive gears that will be installed come springtime. I was trying to sell my car but now I have changed my mind and would like to build it ip my plans for the summer and fall include pi heads( any thoughts on porting,price or local shops,typhoon intake manifold,valve springs, comp cam gears, new cam,bbk valve covers( it's gotta look good right),24lbs injectors, bbk fuel rails, 90mm frpp mass air, headers and a moroso Low profile oil pan.After I buy all these parts this summer I plan to do a full rebuild while everything is being installed. Also I just order an aluminum transmission pan( hold 2 extra quarts) and plan to get a b&m shift kit as soon as I am home for my tranny rebuild this spring. Any thoughts on what kind of power I could make or suggestion on what else I can do to make more power during this build?
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Old 03-27-2011, 12:02 PM
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Hi wannabe,I'm not an expert but I have lots of time to waste window shopping on the web.Here is what I've learned.
I have a Canton Racing RR pan(my dad is a dealer),its great but you can't install it unless you drop the K member.I guess you can put it on at the same time as the headers.
If you do please get a windage tray.
Hold up on the Pi head swap ,a couple of places Modular Head Shop for one like the NPI head because you can apparently run a cam with more lift than Pi allows.
MHS seem to like the Pi intake +Npi heads for NA applications.
I havent heard anything good about the typhoon intake and I doubt you will need the fuel rails injectors or mass air unless you spend all your time @7000 rpm.
Everyone is going to tell you to buy subframe connectors and 4.10 gears they are probably right.Get your Trac Loc rebuilt at the same time.
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Old 03-27-2011, 07:45 PM
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Well the reason i got the 3.73`s was because i do awhole lot of highway driving ,that and i heard with the 4.10`s i cant wrap the speedo on the backroads(once in awhile i like to open her wide up over 200 on the backhighways)Can you recommend any other intakes besides the typhoon.And the reason i wanna do the fuel rails is because regardless of whether or not i do the injectors i love the look of them and i do like to show the car off from time to time, and yes i have every intention of doing subframe connectors i just heard it real expensive to pay someone to install them (I am no welder).For suspension i already have eibach springs,tokico shocks and struts and plan to pick up a strut tower brace as soon as i go one days off.My other plans for this summer suspension wise are eibach sway bars and caster chamber plates and other idea.
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Old 03-27-2011, 08:44 PM
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I have 3.73 gears as well so don't sweat it ,it's the internet afterall.I doubt anybody ever lost top end speed with 4.10's as the torque multiplication helps our puny engines overcome the areo drag/wind resistance.
All I have found on the web indicates that the Pi intake is really hard to beat untill you start running really high RPM's or boost.I think I'll just have mine powder coated when its time for my new motor (saving up for a stroker).
I'm also going to do SFC's ,I havent priced out the labour but I dont think it should be over 300.00 including paint.Check out the Maximum Motorsports instalation page (how to),if you can do all the prep work its a pretty easy for a body shop to weld em in.
I'm selling two strut tower braces (99-04)wont fit your car.
Good luck.

Hey I just discovered that Cushman Motorsport is a canadian company,check them out.
They sell intakes ,rotating assemblies and they're popular cams previously known as VT.

Last edited by terlingua; 03-28-2011 at 02:41 AM.
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Old 03-28-2011, 10:41 AM
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Sounds like fun keep us updated
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Old 03-28-2011, 12:26 PM
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Sounds good every two weeks I will be picking up something new for the build. Also is it a good idea to do a complete rotating assembly when get the full rebuild this fall
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Old 03-28-2011, 07:48 PM
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Originally Posted by wannabesaleen281
Well the reason i got the 3.73`s was because i do awhole lot of highway driving ,that and i heard with the 4.10`s i cant wrap the speedo on the backroads(once in awhile i like to open her wide up over 200 on the backhighways)Can you recommend any other intakes besides the typhoon.And the reason i wanna do the fuel rails is because regardless of whether or not i do the injectors i love the look of them and i do like to show the car off from time to time, and yes i have every intention of doing subframe connectors i just heard it real expensive to pay someone to install them (I am no welder).For suspension i already have eibach springs,tokico shocks and struts and plan to pick up a strut tower brace as soon as i go one days off.My other plans for this summer suspension wise are eibach sway bars and caster chamber plates and other idea.

Alright,...
Here's my thoughts from my research over the years on what i think you are planning on building,which sounds to me is an N/A set up.
Heads,go with the latest from Trick Flow,don't waste any dollars on a set of up graded P.I heads.The Trick Flow heads will out flow any ported P.I heads,or any stock N/A Cobra heads for that matter,which is pretty good for a set of 2V heads.These heads will also help in the piston to valve issue due to the design,and moved intake valve for more clearance,and better flow.
Intakes,non has bettered the stocker for N/A,the '01 Bullitt intake is one good choice if you want reliability,but any related parts to complete the package is becoming really hard to come by these days.
So the next good intake i could see is the Trick Flow intake going by from what i have seen on the net,but even then,it seem to favour the power adder area compared to the N/A area.
Cams,i would highly recommend Cushman(Former VT employee that designed the VT cams) who is Canadian,and roughly 20 minutes away from me LOL!
I am running the Stage II N/A cams,and love them.
When i was doing my research on cams,they were the cams that had proven themselves on paper(dyno),and on the track with guys running 12.0's,and dipping into the 11's at around 112 mph,depending on the set up front to back as a package on their GT's.
Stay away from any adjustable cam gears.Just do a search on modular specific websites.
Comps see to be alright,and the Hitechmotorsports cams also seem good,but they are basically designed to maximize the stock heads to my understanding.
No matter what you go with,valve springs will be needed.
The 24lbs injectors will be a nice added up grade to your plans,the fuel rails can help,but the stockers will hold up to the task.
A MAF will llaso aid you seeing the year of stang you got,plus with upping the injectors,it would be a good idea to kill this all in one shot.
The 75mm might be a little over kill,where some have stated that the 70mm is just right unless you plan to go power adder where the 75mm is more beneficial.
For a mid pipe,i will reommend Bassani since you stated X pipe.Quality,and fitment speaks for itself.I've had the MAC h pipe,and the fitment was a pain in the *** everytime it went on,and off for the e test time,and i'm not the only one that had issues with it on the world wide web.
Just be smart,and do indepth research or your gonna get disappointed in the end.
The 4.62V is not a bad motor out of the box stock.....Ford seemed to already maximize what it can do out of the box!To get those extra gains will take a lot of work,and smart planning.
One way around this issue....is just slap a blower on it.LOL!
Good luck.

Oh,one more thing,4.10's aren't that bad.
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Old 03-28-2011, 10:35 PM
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Trick Flow heads are ported by a company called Total Engine Airflow in Ohio. Got my 3 valve heads ported by TEA and I am looking forward to getting them going.
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Old 03-29-2011, 05:54 AM
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i would go with 410, i had them in my 89 still would go well over 200km/h and get there in a hurry. it was still good on the highway as well i was only revving around 3 or 400 rpm more than my brother with 373's
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Old 03-29-2011, 11:33 AM
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I am taking a look at the twisted wedge heads now does anyone here run them, the reason I wanted to do pi heads was cost after all was said and done with springs and the rest it was about half the cost of the trickflow heads are they worth the extra cash?
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