Quote: The pump is made by Cat and is sold by many different people.
I have a NIB cat pump going onto a mild 451
I have a CAT housing and pump with a 160 t-stat and I can't even get it past 160 degrees with a stock 22" radiator w/clutch fan. My 440 has 12-1 compression and a .600 lift cam. I did drill out the head gasket's water holes that were slotted.. Not sure how much diff that made.
