Just looking for some imput into what it would take to put a 4valve cobra motor in a new body style mustang.40k for a gt500 is to much and to build a car would be some fun.I love my mach1 motor, seats,scoop and the blue paint but not so much the body style and love the whine of a kenne bell.so I have this in mind= azure blue with mach1 treatment as in seats ,strips,scoop,wing and a nasty motor.plus it would be diffrent:-D
how to 4valve a s197
- Thread starter 4valvemach
- Start date
Why? the 3 valve has shown to be far better under boost than the 4 valve. If you still wish to do so, you'll have to get 4 valve heads and upper intake. The engine did not change much.
:read::read::read::dw::??::kaboom::nonono::read::idea:
Sorry IMO it would be WAAAAAAYYYYY to much of a pain in the ass to do something like that no to mention cost shit you should just buy the GT500. Dude just look around great numbers are being made with Superchargers/Turbo's and Nitrous.
Sorry IMO it would be WAAAAAAYYYYY to much of a pain in the ass to do something like that no to mention cost shit you should just buy the GT500. Dude just look around great numbers are being made with Superchargers/Turbo's and Nitrous.
El OH EL.
Wintermute
Banned
Dumbest thing I have read all day. Seriously.
so you like the 05 body better than the 99-04?
Just put forged rods and pistons into what you have now, supercharger/turbo, fuel delivery, tune and go.
BTW: Timing covers are different too. The intake side of the 3v heads is very similar to the 4Vs(good), and the single big exhaust valve, I would imagine, is significantly less sensitive to the TICK issue, it has more mass and is less likely to overheat it's guide.(also good) An exhaust valve that is NOT glowing red hot, also will be much less likely to initiate a detonation event.
BTW: Timing covers are different too. The intake side of the 3v heads is very similar to the 4Vs(good), and the single big exhaust valve, I would imagine, is significantly less sensitive to the TICK issue, it has more mass and is less likely to overheat it's guide.(also good) An exhaust valve that is NOT glowing red hot, also will be much less likely to initiate a detonation event.
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Why?
If you want a new motor dont go with a crappy run of the mill 4v, get a new motor to put in the thing and make it a beast. Ive never liked goin stock to stock.
If you want a new motor dont go with a crappy run of the mill 4v, get a new motor to put in the thing and make it a beast. Ive never liked goin stock to stock.
Not all of them have a built bottom end. Most of them don't. His Mach doesn't.
By built bottom end I assumed you were meaning forged rods and pistons, I didn't know you were only talking about the crank.
After its all said and done you have bought a new motor. Instead of buying some retards 30k miles or whatever the case may be worth of punishment he/she has put on the motor, rebuilding the top end, making sure the motor you have got is in good shape, NOT TO MENTION FINDING THE DAMN THING, you could have got a nice built new motor. But i could never find one for 'cheap' when i was thinking about putting a new motor in my GT. So i just let it go.
The F150 3 valves have outflowed the 4 valve heads. This has been posted before on this very site. 4 valves arent superior in every respect, a lot of it comes down to the way the head ish shaped.
I work in a speed shop. you put the same mods on a 4 valve as compared to a 3 valve and the 3 valve has significantly MORE horsepower.
pics vids or ban.
Might be a reason that most all performance modular race cars are running 4v's though......
op:
you may want to contact Ford about this, because according to you they are doing it wrong by supercharging the 4v motors and not the 3v...
Check out roush's site... they have the M90 kit for the 05-08 mustangs that pump out 390 RWHP all day long on 8 psi. Compare that to a procharged Mach 1 that hits 400whp on 10 psi.
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