Just wondering what size spacers to get the fan correctly in shroud. It will have a stock 4-row rad, stock 70 bb shroud and derale 18" fan #17218,with long water pump. Thanks for the help! Just like to order everything together!!
going from sb to bb

Wont the fan clutch get it where it needs to be? I originally used a small block shroud, had the fan set inside the shroud a couple inches, swapped to the aluminum radiator and no shroud, runs cooler, just gotta watch the fingers :D