Performer RPM small-bore cylinder heads from Edelbrock are designed for use with 265, 283, 305, and 307 cid small-block Chevy engines with 3.736” to 4.000” bores produced from 1954 to 2003. They have the same great features as every Performer RPM series cylinder head—thick deck, extra-thick port walls, high-flowing ports, ductile iron seats, and high-quality rocker studs—plus […]
