Any Small Block Chevy thermostat will work. Rad cap is also standard SBC. I prefer the locking kind of rad cap, and I also installed a coolant recovery tank (aftermarket from any auto parts dealer) to avoid coolant spraying around the front of the car. This can be located in front of the rad where the stock snorkle normally goes (if you have a Weber and pancake filter) or I have seen a thinner version that can be placed on the drivers side (such as Otto Bartsch has done on his engine shown) HTH