I've done my searching and haven't come up with anything about the Isky 209/217 112 .465 .485 cam. I'm putting this in while I'm in the process of fixing a blown head gasket. I also got the cam for free, thus the reason for it being so small as I wanted the 224/230 XE cam (not enough money for a new cam). Can anyone give me an estimated power gain from this cam? I have all other bolt on's-minus 1.6 rockers (lack of money again) and dyno'ed 275rwhp previously. I'm hoping for 300rwhp, but I do not believe I will see a 25hp gain w/ this cam w/o 1.6 rockers. I'll also be using impala gaskets for the little bump in compression, cause every little bit counts as I'm sure most of yall agree .

 

I'd say real minimal gains. That looks real similar to the stock LT4 cam. May not be worth the trouble to change.

 

I know it's really minimal, but since I got it for free and I'll have a few days to put it in while the heads are being decked and cleaned up, I might as well throw it in (not literally of course ).

 

I just found out I will be gettin 1.6 rockers too. Hopefully the cam, cleaned heads w/ 3-angle valve job and impala head gasket, and now 1.6 rockers will give me the 25hp I need for 300rwhp. Is this possible or is it just wishful thinking?

 

I would install the Isky cam if the only other choice is stock. The stock cam only has 201 deg dur.@.050". The Isky is 209 deg. @ .050", plus you have 1.6 rockers, this can only improve performance vs. stock. The question is how much. The Isky technical line should be able to estimate that and I would think 20-25hp. over stock is possible. Don't forget to check with Isky regarding valve spring requirements. This detail is critical to avoid valve float that will kill performance or spring failure could spell disaster if the engine swallows a valve! I learned this lesson the hard way and will never install a cam again with out making sure the springs are compatible. Good luck with your project!