Want to turn a 7.3 to/past 4000rpm?

[Dirk]

Take a looky at my new springs. Don't worry about open/seat rates.

[Raul@Stealth Automotive]

nice..... ..

[2005F250]

Fancy. Are those prototype's or just 910's or what ever there called?

[Dirk]

Originally Posted by 2005F250

Fancy. Are those prototype's or just 910's or what ever there called?

910's look just like stockers...


These don't play nice on the street. Pretty much race use only.

[Jake]

Ok, so the valve train can handle over 4000, now what about the rest of the motor?

[Tyler]

Originally Posted by Jake

Ok, so the valve train can handle over 4000, now what about the rest of the motor?

[Jarrod B]

so those go over the stock springs? do you have to take the head off again?

[Dirk]

Originally Posted by Jake

Ok, so the valve train can handle over 4000, now what about the rest of the motor?

Mine will.

Originally Posted by bockhold

so those go over the stock springs? do you have to take the head off again?

Completely different setup. Heads/valves have to be prepped for these. Good thing I have more than 1 set of heads laying around...

[Dirk]

Give me a bit, I'm trying to clean up the rest and take a pic of all 16 together...

[Jake]

And why don't they "play nice on the street?" I didn't know different springs made a difference.