I want to build the motor in my LS up some and Ive been thinking about changing the pistons out for a higher compression.

Now, what I was planning is changing the LS pistons out for some p30 B16A pistons. That and a 2 layer head gasket should yield me 11.2:1 compression. If I used a single layer gasket I could get 11.5:1.

But now I have some friends who tell me that I can use the pct pistons from a CTR and get even higher compression. But they warn me of valve clearance issues, especially with cam choices.

To me it seems like it would be simpler to go with the p30's and the 2 layer gasket. It doesnt seem to me like valve clearance is a problem with that setup so long as I dont use a radical cam profile or anything.

I havent picked out, planned, or even looked at cams yet so I dont know what I would do in that department.

So, Honda guru's, let me know what you guys think of what I am thinking.