Quick view Bill Mitchell Products BMP 020660 - Cylinder Heads Aluminum Chevy Big Block 350cc 119cc 24Degree 2.300" x 1.880" BILL MITCHELL PRODUCTS BMP Cylinder Heads Aluminum Chevy Big Block 350cc 24Degree 2.300" x 1.880" This highly evolved, race-proven cylinder head is capable of supporting in excess of 800 horsepower in “as cast” form. Formally known as... $837.40 Choose Options Compare