Part Number MCC516
Chrome Small Block Chevy Water Neck 1957-1966
Steel , Triple Plated Copper / Nickel / Chrome
Fits Small Block Chevy 283 327 350 383 400 1957 to 1966
Thermostat Housing Is Milled Flat After Production To Insure A Flat Sealing Surface
Comes With The Mounting Bolts
Comes With O-ring Gasket
Will Not Work On LT1 or LS Chevy Engines or TPI engines