I was looking though wikipedia a little bit ago and decided to look up my engine and found it. Well, I noticed that there's a "VORTEC" version for the trucks that take the i2.2 etc. but I also noticed that it called the 2200 a "LN2", I did a search on the boards, and came to the conclusion that the ln2 is the official name for the older 99 and under 2200s. Is this true? Because I noticed that places like JBP say that they have LN2 valve springs. I personally have a 2002 cavalier ls, (w/ the 2200), would those springs fit in my ride? Heres the site for the springs on JBP:
http://www.jbodyperformance.com/new/PartDetails.php?partId=540&catId=540&catName=JP0540
I was also wondering what you all think about those springs, whether they're worth getting since I plan on getting a new cam in the future for a bit higher reving (7.5 max rpm)(5.7-6.0 seem to be stock for the limiter). I've read that anything over 97'+ are hard to find valve springs for other than stock that don't require modification to the rockers/valve/seat.
Well, first off, kudos for dind a pretty thorough search through the forums, it sounds like you have some good baseline knowledge.
The LN2 is the engine code for the motor thoughout its production ('82-'02). We generally term anything 98+ a "2200" and anything 94-97 a "2.2L" (pre-94 non-rollers are generally referred to by model year), either can be called an LN2.
Stay away from JBP when looking for 2200 springs, they appear to have VERY high spring rates. The only real option for the 2200 at this point is to go with an LS1 spring variant (lots of aftermarket options here), and having your spring seats ground down to achieve a 1.800" installed height. This is not a difficult process, just make sure you have a competant machinist.
fortune cookie say: better a delay than a disaster
Ok, thanks for clarifying the engine name info. I thought that the JBP springs seemed a little too good to be true, and with what I've read about some of their stuff, somethings are meant to be left alone in their warehouse. Plus I have a dremel and I think it uses 1/8" bits, I was planning on buying a new head from a junked 2002 and doing a manual port/polish job on it. I already tested, I can cut though a screwdriver in about 2 minutes with this dremel. Now do you think I could use the same dremel to grind down the spring seats or would that require more accurate tools?
Robert Freeman wrote:Ok, thanks for clarifying the engine name info. I thought that the JBP springs seemed a little too good to be true, and with what I've read about some of their stuff, somethings are meant to be left alone in their warehouse. Plus I have a dremel and I think it uses 1/8" bits, I was planning on buying a new head from a junked 2002 and doing a manual port/polish job on it. I already tested, I can cut though a screwdriver in about 2 minutes with this dremel. Now do you think I could use the same dremel to grind down the spring seats or would that require more accurate tools?
The spring seats have to be absolutely perfectly flat (within standard engine tolerences at least), I wouldn't even take it to the neighborhood machinist.
fortune cookie say: better a delay than a disaster
