GM LT1

The LT1 is a good all around head that works well up to the .500" lift range..

• PORT SIZE: 170
• CHAMBER: 58cc
• VALVE SIZE: 1.94 / 1.5
• PRICE: N/A
• FLOW@.100: 72 / 52
• FLOW@.200: 129 / 100
• FLOW@.300: 180 / 130
• FLOW@.400: 213 / 142
• FLOW@.500: 214 / 149
• FLOW@.600: 215 / 154