Is this guy full of it? (LS6 heads compression)
Someone told me the other day he was pretty sure that adding stock LS6 heads to a stock LS1 motor would subtract compression. Now I was 99% sure it would ADD compression.
Was I mistaken or is this guy full of it?
Was I mistaken or is this guy full of it?


the 6.0L heads will drop the compression. They are lq9 I guess he could've gottne them confused. Maybe 