I have an LG4, and I was looking into some different heads for the spring if I can find a good deal. I saw somewhere that someone had used stock L98 heads on the LG4. Is that possible? I know I can find stock L98 heads cheap

 

If you use 350 heads, one of two things happen:
A) Your compression goes in the toilet
B) You have to get them milled and then if you ever put them on a 350, you're compression is once again--in the crapper. Also I *think* you might experience some "shrouding" because of the larger chambers

I've heard good things about the W/P SR Torquer heads. Check em out, Summit has them.

 

Just port and polish your LG4 heads. They are 081, 416 or 601 castings. Regardless, just follow the link at the end of my sig for the low-down on the cheapest and fastest heads for the buck$ anywhere