1.7's, stock cam?
 

Im thinking about doing 1.7 rr on my stock cam, instead of putting in an e303 and 1.6's. my question is would that be a better/easier idea than putting in the new cam and replacing springs? (Id be getting new springs with 1.7's anyways) and would that cause me to be smog illegal by any chance? (in cali)

the lope would sound different as well correct? sorry for the questions Im just not very educated when it comes to this subject.

RE: 1.7's, stock cam?
 

Well the specs other than lift also help with performance. RR would be easier but you probably wouldn't fell the gain as much as a cam.

RE: 1.7's, stock cam?
 

I think 1.7rr add about 10 ponies to a stock camand a aftermarket cam would make more. I run 1.72rr with the e303 cam with no problems.

RE: 1.7's, stock cam?
 

gains will be minimal at best and hardly noticable;)

RE: 1.7's, stock cam?
 

ah ok I was wondering about that option as well. Im looking at a set of gt40p's with a trickflow spring kit already on it. would I be able to run the 1.72's on maybe stock heads with new springs with no problems until I get new heads? and would the gt40p's fit my stock engine? it says they are 1.9 intake and 1.6 exhaust. idk much about heads....

RE: 1.7's, stock cam?
 

I would wait and just do heads and a cam at the same time. Putting 1.7s on your stock engine is going to be a waste of time and money for the gains you'll see, and the cam will probably sound the same since the duration doesn't change.

RE: 1.7's, stock cam?
 

Im looking at a pair of gt40p's that says valves are 1.9 intake and 1.6 exhaust(not very knowledgable in heads), the cam that would be going with it is an e303. will I have to make any modifications for this combo? and should I just run 1.6 rr?

RE: 1.7's, stock cam?
 

GT40P heads with an E cam and 1.6s should work just fine on a stock bottom end as long as it's not an 86. You should always check piston to valve clearance but if you don't feel like it you should have no problems.

RE: 1.7's, stock cam?
 

Yeah I think I'm going to try to purchase the heads (hopefully =X) in the next couple days. Would I need the 3/8's, or 7/16's stud for the 1.6 rollers?

RE: 1.7's, stock cam?
 

I believe those heads are pedesetal mount.