GTp 40 engine

mustang302orange

mustang302orange

Active Member
#1
#1
can anybody steer me in the right direction?? about how much hp does a 96 gtp 40 stock engine have and are they a good engine as abse to do a mild build with...the motor has about 55k on it and it came out of a explorer!!!!! is $450 a good price to pay for this motor and is it worth investing some money on it such as CAM;INTAKE;and MSD Ign.
thanks guys!!!!!!!!!!!!!!
 
92BIGREDBEAST

92BIGREDBEAST

Well-Known Member
#2
#2
Sounds like a good price if its complete. Dont expect much more then 300 at the crank from a stocker. Put on a decent intake and a mild cam and you should have a decent na combo. Not much over 300rwhp if your lucky. Good price for a 55k motor..
 
mustang302orange

mustang302orange

Active Member
#3
#3
whuts up BIG RED;
so tell me whats a good size cam to put in this engine??? i already have a typhoon intake with 24lb inj and a msd ingnition...i'm looking to change from speed density to mass air also but i need to find the conversion kit to do that....if you know of where or who has one let me know.. looking to try and get this done before the winter comes!!!!!
 
1990_LX

1990_LX

Clubhouse Moderator
#4
#4
I know a guy who has an explorer 5.0 with the p heads, a TFS 1 cam, TFS valve springs, 1.6 RR and the stock explorer upper/lower and he did 295 rwhp.
 
92BIGREDBEAST

92BIGREDBEAST

Well-Known Member
#5
#5
mustang302orange said:
whuts up BIG RED;
so tell me whats a good size cam to put in this engine??? i already have a typhoon intake with 24lb inj and a msd ingnition...i'm looking to change from speed density to mass air also but i need to find the conversion kit to do that....if you know of where or who has one let me know.. looking to try and get this done before the winter comes!!!!!
Click to expand...
You dont want to put to big of a cam or you will lose power with that combo. I would probably go with a b303 cam. You can find them dirt cheap. The TFS stage 1 is the wrong cam for a NA set up i believe. That is a forced induction cam. Do some research online to see what people put in that motor. I have never personally built one of these so someone should probably know better. Alot of guys ruin there combo by going with a cam to big. Then on the other hand, i have read that people have too small of a cam for there set up, wich i think was my cas in my 92. There was more power to be made with a bigger cam. I had the e303 Fors motorsports cam. Im sure Dave will chime in here some time...

1990_LX said:
I know a guy who has an explorer 5.0 with the p heads, a TFS 1 cam, TFS valve springs, 1.6 RR and the stock explorer upper/lower and he did 295 rwhp.
Click to expand...
I guess i was spot on with the #s... LOL
 
AdirondackFox08

AdirondackFox08

Member Plus
#6
#6
I would buy it, I would've had at gt40p motor a while ago for about the same price, but it didn't go through. Just make sure to upgrade the valve springs. I would stick the sd cam into the motor, get good drive ability and makes a little more power than the stock maf cam. The TFS stg 1 might make more power at the top end, but from what I've seen it doesn't start making more power until 3000 rpms... It really depends on what you use the car for. Oh, and unless the motor comes with the headers you will most likely have to get the specific ones for the gt40p heads, you check on corral.net and see which ones will fit...
 
dsblk93gt

dsblk93gt

5.0 Moderator
#7
#7
What are you using the car for? Street? Strip? Both? A stock HO cam works fine with some 1.7 rockers or you can run a TFS Stage 1 with 1.6 rockers, B,E, or F303 with 1.6, Comp XE258 if you want more TQ, there are a ton of choices. TFS sells a spring kit that is around $150 that works well with any of those cams listed. If you want less headaches and better driveability the stock cam or a Steeda #19 might be a good choice as well as that small Comp. Like said above, the other cams make more power up top but the stock is tough to beat for idle/cruise and low end. That little Comp makes huge TQ though and is not a slouch on HP either!

For headers I like the FRPP shorty which are a direct fit with zero modifications. MAC long tubes and shorty work but you need to run a few 90* boots I think.
 
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