Will these heads fit a 428 and are there benefits to such a swap? These are supposed to be 126 CC. At $100/set are these worth putting together?
http://images.craigslist.org/01111_ddwG ... 00x450.jpg
http://images.craigslist.org/00X0X_8Kw4 ... 00x450.jpg
http://images.craigslist.org/00p0p_jXn8 ... 00x450.jpg
http://images.craigslist.org/00s0s_2jwj ... 00x450.jpg
http://images.craigslist.org/01111_ddwG ... 00x450.jpg
http://images.craigslist.org/00X0X_8Kw4 ... 00x450.jpg
http://images.craigslist.org/00p0p_jXn8 ... 00x450.jpg
http://images.craigslist.org/00s0s_2jwj ... 00x450.jpg