!.7 rockers
 

Are these rockers hard to install? Are there any diffrence in

the crane "cobras" and the ones from ford? Are they both

pedastal mount, are shims needed? Can I use my old pushrods?

Do they add much power (noticable)?I'm changing my intake

gaskets and thought I might add these and fresh valvesprings

while the intake is off. Thanks Guys

SKI

RR
 

They are fairly easy to install and you can get instructions from Crane's website.
The Crane RR are the ones that Ford used on the 93 Cobras.
You will not notice any major power improvements. It will reduce wear and friction. We did not need any shims when doing the install on a 92 coupe. Depends on the condition of your valvetrain. They will come with the shims anyway.

Can you reuse the stock pushrods? What valve spring will I need? Thanks!!

Stock everything. You can use your springs too unless they are worn out. How many miles are on the car?

She's pushing 150,000, I figure they need it! Especially if I get the 1.7 RR's

If it were my car, (I have more miles than you) I would put new springs on.

Thanks for your help!
I don't know much about valvetrain, when you say stock everything I guess retainers or locks or whatever they're called can be reused also or do I need them with new springs?
I'm guessing you used compressed air through spark plug hole to keep valves from falling in? I'm told this is how to do it.

yes, yes, and yes

If you have a lot of miles on your engine, I expect your blow by has increased, you may have poor cylinder sealing at the rings, or worn cylinder walls. Many engines will have some pitting on the valve faces, and poor sealing on the valves to boot.

So I would pull each plug, fill the cylinder with a bunch of thick but flexible string, and then compress the cylinder until the string or rope compresses against the combustion chamber. Now you can pull off the locks and retainers, and change out the springs.

This is an "ol guy" trick we used, before compressed air was discovered.......he he he......

But again, I would do this anyway because I have had new fresh engines that still dropped the valve with high air pressure in the cylinder.

The rope might end up saving you time and distress.

Read my post on these, the cranes are pretty good, i gained some good power, far as i know, my car is around 180k, and i didnt change springs, i left everything as it was, just bolted in the pedestal 1.7's, if you need more directions let me know, i didnt use shims, and i have no problems, but you have to modify your stock valve covers a little, this was fairly easy, once you've had the upper intake off before, you know exactly what to do, i had to learn about the vaccuum lines and such, but no problem now.

explain this trick. i cant see how it is done.

screw the string..just shoot air in the cylinder.