LS3 Port

GM

Chevrolet Performance LS3 Cylinder Head (ASSEMBLED)

GM

Chevrolet Performance LSA Aluminum Cylinder Head (ASSEMBLED)

Air Flow Research

AFR 12° LS3 Head 260cc, fully CNC ported, 69cc chambers, Assembled: PAIR

Air Flow Research

AFR 12° LS3 Head 260cc, fully CNC ported, 69cc chambers, 6 BOLT, Assembled: PAIR

Air Flow Research

AFR 12° LS3 Head 260cc, fully CNC ported, 69cc chamber, NO PARTS: PAIR

Air Flow Research

AFR 12° LS3 Head 260cc, fully CNC ported, 69cc chambers, 6- BOLT, NO PARTS: PAIR

Air Flow Research

AFR 12° LS3 Porters Casting, no porting, rocker rail, parts or valve job, 6- BOLT: PAIR