Hi, I am choosing some roller rockers to put on my car, my cam is 1.5L, if I went with 1.6L on the rockers, would I still have clearance, or would it still be too much? and stud 3/8 correct?

 

If you're talking about valve cover clearance, nearly any aftermarket rocker will require modifying the valve covers, it's not hard though. That's the only clearance issue I know of. I would suggest upgrading the rocker studs to aftermarket as well. 7/16" is better as long as you get the rockers to match.

 

I have some crane s/a 1.6 rockers for sale that clear the stock valve covers if you are interested.

 

Is your car otherwise stock? If you have a stock cam and the only mod you plan on doing is the rockers, then self-aligning 3/8 stud rocker arms should be more then adequate. Depending on what brand you go with, you may have to clearance your valve covers, it isn't a big deal and there are plenty of writeups on here that go through it.

 

What springs are you going to use?