Im just cerious if any one is running kelford 272 cams on stock head?

 

curious btw why would you do something so reckless its is recommended strongly to upgrade spring and retainers but if your one to go against the grain then more power to ya

 

You need upgraded springs and retainers.

Mikey

 

It would only be wreckless if he was trying to run 9000rpms. I'm running kelford 272's and only reving to 7800. I was told by my tuner and the person that i bought them from that i will be safe as long as i stay below 8000rpms. If you are running it as a drag then yea i would replace the valvetrain. or if your going with the kelford 280s.... if your on 272s youll be ok dude.

 

^ That's BS don't listen to this guy! You can't run Kelfords, GSC, or Cosi 272+ cams on stock valvetrain.

Mikey

 

you can, but it is highly not recommended... do your self the favor and do things the right way the first time so you wont have any problems in the future.. its alot better spending 400$ on springs and retainers than spending 4k + for a motor

 

You have to pay to play. I would pay 400 for springs and retainers than try to push the larger profile cams to far and end up dropping a valve into the motor! Do it right and don't cut corners!

Mikey

 

your going to float a valve man.....buy the springs

 

Again like i just said its reckless and others agree

 

Wow. The only guy with first hand, empirical evidence is shot down by a bunch of speculators who do not even run Kelford 272's (per their signatures). Amazing how much disinformation can be spread on these forums.

Listen to the guy who actually has them in his car. Kelfords are fine on stock valve springs as long as you don't exceed the stock rev limit. End of story.

Now, if you want to run a built 2.0 or destroked 2.1 and rev it out to 9500 on a big turbo, then yes, you will need stiffer valve springs. Otherwise, there are a bunch of people on stock valve springs with Kelfords with no issues.

 

thanks man! god damn it's like reading the Head stud thread 1x1 method or take the head off. yeah it's not a bad idea to do the valve train, but it's not a catastrophic fail! DUDE GET THE VALVETRAIN UPGRADED OR YOUR ENGINE WILL CREATE SUCH AN EXPLOSION THAT IT'LL IMPLODE BACK IN ON IT'S SELF AND CAUSE A BLACK HOLE AND ALL THE OTHER EVOS WILL GET SUCKED IN!

 

If you wanna find out for sure call Kelford and ask them about it. I gaurantee that they will say we recommend them, BUT not necessary if your staying in stock rev limit.

 

I run the 272 but did the valve train since the head was off the car. This is on a built 2.0 though.

 

I run them with stock parts...

My buddy is running them with supertechs, but he revs to 8000 all the time

Just make sure you don't rev too high or set the limit so you don't.

 

I also ran my kelfords on stock valvetrain, only revving to 7000rpm.